automatic transfer switches section 14 - abb group · section 14 rev. 1/19 go.abb/industrial ge...

Automatic Transfer Switches Section 14

go.abb/industrial GE Products BuyLog 14-1Rev. 1/19Data subject to change without notice

Automatic Transfer Switches................................................... 14-2ATS (Residential) / ZTX Series.............................................................. 14-4ATS (Commercial) / ZTG Series........................................................... 14-6ATS (Specification) / ZTS Series....................................................... 14-15ATS (Specification) / ZTE Series........................................................14-32ATS (Specification) / ZTED Series.................................................... 14-34ATS (Specification) / ZTECT Series.................................................. 14-36ATS (Specification) / ZBTE Series.....................................................14-38ATS (Specification) / ZBTED Series..................................................14-40ATS (Specification) / ZBTECT Series................................................14-42ATS (Specification) / ZT30 Series.....................................................14-44

Automatic Transfer SwitchesCritical Power Products

Section 14

go.abb/industrial Rev. 1/19Data subject to change without notice

GE Products BuyLog14-2

Automatic Transfer Switches

It is imperative that emergency power systems allow for a smoothtransition from a normal source to an emergency source and backagain. Our automatic transfer switches are field-proven to be superior in design and reliability, regardless of the application.

Model ZTX is built specifically for residential and light commercialapplications. The switches are ideal for standby applications, andare available as NEMA 1 or NEMA 3R enclosed.

Model ZTG is a product solution designed for standard open transition applications. Building on ZTS technology, the series usesthe MX150 microprocessor control system and includes many ofthe most common features specified on a transfer switch. It alsoprovides an intuitive user interface, communications capabilityand self-diagnostics.

Model ZTGD has the features of the ZTG Series but is built for de-layed transition applications that require the dependability andease of operation of a power contactor switch.

Model ZTGSE has the features of the ZTG Series but is built for aservice entrance application that integrates the utility circuitbreaker, optional surge protection device and power monitor intoone simple coordinated package.

Model ZTGDSE has the features of the ZTG Series but is built fordelayed transition service entrance application that integrates theutility circuit breaker, optional surge protection device and powermonitor into one simple coordinated package.

Model ZTS is the building block of the transfer switch product line.Available in open type or NEMA enclosed to customer specifica-tions, the ZTS withstand and closing ratings far exceed UL require-ments and comes standard with our MX250 controller.

Model ZTSD of delayed transition transfer switches allows for thefull decay of rotating motors or transformer fields. They can alsobe used for load shedding of selected circuits or other applications.

Model ZBTS Bypass-Isolation Transfer Switches are the solutionwhen power interruption during service or testing is unaccept-able. Incorporating a quick-make/quick-break manual load trans-fer handle and GE Zenith Controls control/interlock system, thebypass uses normal failure sensing and a time delay to start theengine automatically if a failure occurs when the automatic trans-fer switch (ATS) has been removed for service.

Model ZBTSD Delayed Transition Transfer/Bypass-IsolationSwitches incorporate the features of the ZBTS Bypass-IsolationSwitch and the ZTSD unit for transfer of large motor loads, transformers, uninterruptible power supplies (UPS) systems orload shedding to a neutral “off” position.

Model ZTSCT of closed transition switches combine ZTSD operation during a source failure with a highly engineered control system that allows momentary paralleling of two acceptable sources, limiting the impact of transfer on the load.

Model ZBTSCT Closed Transition Transfer/Bypass-IsolationSwitches combines all the functionality of our bypass and closedtransition switches for the highest level in reliability.

Model ZTSMV Medium Voltage Automatic Transfer Switches aredesigned for installations from 5 kV to 15 kV and loads up to3000 amps.

Model ZTE is specifically designed for large healthcare and mission-critical applications, with built-in metering, communications and advanced diagnostics.

ZTE Automatic Transfer Switches go beyond simply source switching and are available from 40-4000A and 120-600V.

ZTE Series, Standard (Open) Transition. The GE Zenith ZTE stan-dard (open) transition transfer switches go beyond just source switching. Integral metering and communications, high-level diagnostics and superlative flexibility make the ZTE a perfect solution for today’s mission critical source switching.

ZTED Series, Delayed Transition. The ZTED - Delayed Transitiontransfer switch offers the same features as the ZTE with the addition of an adjustable time delay in the centered "off" posi-tion. This delay allows motor loads to coast down and trans-former field to decay; ensuring inductive loads are re-energizedafter transfer with only normal inrush starting currents.

ZTECT Series, Closed Transition. The ZTECT -Closed Transitiontransfer switch offers the same features as the ZTE with the addition of a high-speed drive system, which ensures the overlapof the normal and alternate sources is less than 100 millisec-onds. When one source is not within normal limits, such as dur-ing a power outage, the ZTECT automatically operates in delayed transition mode.

Introduction

Section 14


Automatic Transfer SwitchesCritical Power ProductsIntroduction

ZBTE Series Bypass-Isolation Transfer Switches are the solution when interruption of power during service or testing is notacceptable. Consisting of two major modules—the AutomaticTransfer (ATS) and the Bypass/Isolation Switch—the ZBTE Series likethe ZTE Series, incorporates the most advanced microprocessorcontroller in the industry as well as the same advanced ruggedconstruction of all our ZTE Series automatic switches with a quickmake/quick break bypass switch manual load transfer handle andour control/interlock system, which consists of both mechanicaland electrical interlocks.

ZBTE - Standard (Open) Transition Bypass/Isolation. The Zenith ZBTE Bypass/Isolation transfer switch is used in general and mixed load applications

ZBTSE - Delayed Transition Bypass/Isolation. The ZBTEDBypass/Isolation transfer switch is used to transfer large motorloads, transformers, uninterruptible power supplies (UPS) systems or load shedding to a neutral "center" position.

ZBTECT - Closed Transition Bypass/Isolation. The ZBTECTBypass/Isolation transfer switch is used to transfer critical loadswhere a "no break" transfer is desired.

ZT30 Series - The Zenith ZT30 is a UL tested 30-cycle short-timerated Automatic Transfer Switch that is utilized to facilitate selec-tive coordination via upstream Over Current Protective Device. The ZT30’s industry leading short-time rating and best-in-classfootprint greatly simplifies the selective coordination designprocess and provides the utmost in system design flexibility for future system growth. The ZT30 supplies 100% rated power toloads after an overcurrent event, helping to maximizing power distribution system reliability and uptime. The ZT30 is available instandard, delayed and closed transition modes as well as in bypass-isolation.


Section 14



FeaturesModel ZTX switches are built for residential and light commercialapplications requiring the dependability and ease of operationfound in a power contactor switch.

—Ratings 40 to 400 amps (2, 3 and 4 pole)—UL 1008, CSA and IEC listed to 480 VAC 50/60Hz—Double throw, mechanically interlocked contactor mechanism—Electrically operated, mechanically held—Designed for standby applications—Equipment (controls & power section) seismic test qualified to:—IBC-2009—IEEE-693-2005

Model ZTX switches are equipped with the MX60 control panel asstandard. This microprocessor control includes:

—Undervoltage sensing (90% pickup/80% dropout) of theutility source

—Voltage and frequency sensing of the generator source (90% voltage/95% frequency pickup)

—Time Delay Engine Start – 5 seconds (P)—Time Delay Engine Warmup – Transfer to Generator – 20 seconds (W)

—Time Delay Utility Stabilization/Retransfer to Utility – 5 minutes (T)—Time Delay Engine Cool Down – 5 minutes (U)—“All time delays are fixed.”—Indicating LEDs for source availability and switch position—Pushbuttons for test, engine start (manual), generator exer-ciser and diagnostic reset

—Special status annunciation of in-phase transfer and timer operation

—Selectable 7, 14, 21 or 28 day (factory set 28 days) generator exerciser timer

—Diagnostic LED indications

Additional options include: A3/A4 Auxiliary contacts (1 each) closed in utility and generator positions B9X 1.5 Amp/12 or 24 VDC Battery Charger

ZTX Series Residential and Light Commercial Switchwith MX60 Control Panel (front cover removed)

MX60 Microprocessor Control Panel

Model ZTX


Section 14


Ordering Information

UL 1008 Withstand and Closing RatingsPlease refer to GE Zenith Controls Bulletin TB-1102.

Amp Size Size

40-80 #8 to 3/0

100-225 #6 to 250 MCM

300-400

Qty Per Phaseand Neutral

1

1

1 #4 to 600 MCM

8 to 85 mm2

13 to 127 mm2

21 to 304 mm2

Lug Configuration

NEMA 3RPolesAmpereRating

NEMA 1Height Width Height Width DepthDepth

2, 3, 4

2, 3, 4

40-225 24

300-400 46

18

24

10

14

24

46

18.5

24

10.5

15

Dimensions

Z T X 0 0 0 0 Z E C— Z V C M 0 06Model/Type Control

PanelApplication Ampere

SizeSwitched

Poles

Z T X 0 0 0 M 6 0 0 0 4 BStandard (Open Transition) MX60 Micro-

processorControl Unit

Utility-Generator

40 amps 2 Poles

Enclosure Type

0 1Type 1 Enclosed

A BConsult Table Below

A3/A4Auxiliary Contacts (1 each)Closed in Source 1 (normal)and Source 2 (emergency)

0 00 0 8 E

No MicroprocessorControl Unit

80 amps 3 Poles

3 RType 3R Enclosure

0 1 0 F100 amps

0 1 5150 amps

0 2 0200 amps

0 2 2225 amps

0 3 0300 amps

0 4 0400 amps

4 Poles

0 0Open Style

Unit

B9XBattery Charger

1.5 Amp/12 or 24 VDC

Operational Voltage Accessories

A B Voltage Phase Config. Hz

1 0 120 1 2 wire 60 2 0 120/240 1 3 wire 60 2 1 120/208 1 3 wire 60 3 0 240 3 3 wire 60 3 1 208 3 3 wire 60 3 2 220 3 3 wire 50 3 3 120/240 3 4 wire 50 3 4 110/220 3 4 wire 60 3 5 139/240 3 4 wire 60 3 8 120/240 3 4 wire 60 4 0 120/208 3 4 wire 60 4 1 127/220 3 4 wire 60 4 2 127/220 3 4 wire 50 5 0 480 3 3 wire 60 5 1 440 3 3 wire 60 5 2 440 3 3 wire 50 5 5 460 1 3 wire 50 5 7 480 1 2 wire 60 5 8 254/440 3 4 wire 60 7 0 277/480 3 4 wire 60 7 1 277 1 2 wire 60 7 4 266/460 3 4 wire 60 7 5 460 3 3 wire 60 8 2 380 1 2 wire 50 9 0 240/416 3 4 wire 60 9 1 220/380 3 4 wire 60 9 2 220/380 3 4 wire 50 9 3 240/416 3 4 wire 50 9 7 380 3 3 wire 60

Note: Operating voltage must be specified at time of order.Only the most common voltages are shown above.

Product # ExampleZTX000M60010E-ZEC01ZVC50M060This number string shows the correct format for a ZTXModel Automatic Transfer Switch with MX60 micro -processor control unit, Utility-Generator, 100 amps, 3pole, NEMA Type 1 enclosure, 480 V, 3φ, 3 wire, 60 Hzsystem with the standard group of accessories.

Technical Specifications

For information on ZTX OEM plans,

please consult your GE representative

Model ZTX


Section 14



FeaturesModel ZTG switches are built for standard applications requiringthe dependability and ease of operation found in a power contactor switch.

—Ratings 40 to 3000 amps (2, 3 or 4 poles)—UL 1008 listed at 480 VAC—CSA certified at 600 VAC (200-260 amp-480V)—IEC listed at 480V—Equipment (controls and power section) seismic test qualified to:—IBC–2009—IEEE–693–2005

—Double throw, mechanically interlocked contactor mechanism—Electrically operated, mechanically held—Designed for emergency and standby applications—Available in standard (ZTG) or delayed transition (ZTGD) models

ZTG switches are equipped with GE Zenith’s next-generationMX150 microprocessor panel, which controls the operation anddisplays the status of the transfer switch’s position, timers andavailable sources. As an embedded digital controller, the MX150offers high reliability and ease of unattended operation across arange of applications. The MX150 features include:

—Timer and voltage/frequency settings adjustable without disconnection from the power section

—Built-in diagnostics with LCD displays for immediate troubleshooting

—LED/LCD indicators for ease of viewing and long life—Nonvolatile memory—clock battery backup not required for standard switch operation

—Processor and digital circuitry isolated from line voltage—Inputs optoisolated for high electrical immunity to transientsand noise

—Communications header for network interface

Fully Approved—UL, CSA and IEC listed—IBC–2009—IEEE–693–2005—Ringing wave immunity per IEEE 472 (ANSI C37.90A)—Conducted and Radiated Emissions per EN55022 Class B (CISPR 22) (Exceeds EN55011 and MILSTD 461 Class 3)

—ESD immunity test per EN61000-4-2 Class B (Level 4)—Radiated RF, electromagnetic field immunity test per EN61000-4-3 (ENV50140) 10v/m

—Electrical fast transient/burst immunity test per EN61000-4-4—Surge immunity test per EN61000-4-5 IEEE C62.41 (1.2 X 50µs,0.5 and 4 kV)

—Conducted immunity test per EN61000-4-6 (ENV50141)—Voltage dips and interruption immunity EN61000-4-11

Design and Construction Features—Close differential 3 phase under-voltage sensing of the normalsource—factory standard setting 90% pickup, 80% dropout (ad-justable); under-frequency sensing of the normal source factorysetting 95% pickup (adjustable)

—Voltage and frequency sensing of the emergency source— factory standard setting 90% pickup voltage, 95% pickup frequency (adjustable)

—Test switch (fast test/load/no load) to simulate normal source fail-ure—automatically bypassed should the emergency source fail

—Type 1 enclosure is standard—also available in open style orTypes 3R, 4, 4X or 12

Models ZTG and ZTGD


Section 14


Options

6A Test Switch, Maintained6AP Test Switch, Maintained ProgrammableA1 Auxiliary Contact, operates on Source 1 line failureA1E Auxiliary Contact, operates on Source 2 line failureA3 Auxiliary Contacts: Closed when the transfer switch is in

Source 2 positionA4 Auxiliary Contacts: Closed when the transfer switch is in

Source 1 positionA62 Sequential Universal Motor Load Disconnect Circuit.

Normally closed Auxiliary contacts for Motor Loads.Open 0-60 seconds pior to transfer, after transfer, orboth in either direction then reclose in timed sequenceafter transfer.

ATGEW-X Extended annual parts and labor warranty (1-4 years fora total of 5 years max.)

CTAP Alarm panel on transfer to emergency w/silence button& light

DS Inhibits transfer in either direction when in inhibit. Allowsautomatic operation when in Auto (Standard on 800Aand above)

HT Heater and ThermostatLCM LonWorks Communication ModuleMCM Modbus RTU Communication Module

M90 Series Power Measurement Meters (Not available in NEMA 4 enclosure)

M90 EPM2000 True RMS Digital Meter with display (Amps,Volts, Power, Energy, Power Factory and Frequency). 3Line LED Display. 50/60 Hz Universal Operation. 1 or 3phase. Standard Modbus RTU RS485 communicationscapability. 40 – 1200 Amps.

M90A Adds Pre-Wiring for Enervista™ Viewpoint Monitoring ofM90 Accessory & ATS Status using Modbus RS485 SerialCommunications

M90B Adds Pre-Wiring for Enervista™ Viewpoint Monitoring ofM90 Accessory & ATS Status using Ethernet TCP/IP Communications

M91 EPM6000 True RMS Digital Meter with display (Amps,Volts, Power, Energy, Power Factory and Frequency,THD). Certified energy and demand metering. MeetsANSI C12.20 and IEC 687 Accuracy Classes. Front IrDAPort Laptop Connection. Standard Modbus RTU RS485 orDNP 3.0 communications capability.



OCVR-1SG Lockable see-through microprocessor cover for NEMA3R or 12

OCVR-1SS Lockable see-through microprocessor and meters coverfor NEMA 3R or 12

T3/W3 Elevator Pre-Signal Auxiliary Contacts: Open 0-60 seconds prior to transfer to either direction, re-closesafter transfer.

UMD Universal Motor Load Disconnect Circuit: Auxiliary Con-tact opens 0-5 minutes prior to transfer in either direc-tion, re-closes after transfer. Can be configured by enduser for Pre-transfer, Post-transfer, or both.

VI Voltage Imbalance Monitor (Three Phase)

NOTE: For applications requiring additional options or other configurations, useGE Zenith Factory.

Models ZTG and ZTGD


Section 14



Model ZTGReference Charts

ZTG AL/CU UL Listed Solderless Screw-Type Terminals for External Power Connections1 Normal, Emergency and Load Terminals

Switch Size (Amps) Cables per Phase & Neutral Range of Wire Sizes

40 1

#8 to 3/0 8-85 mm2 80 100 150 1 #6 to 250 MCM 13-127 mm2

200, 225 260 #6 to 350 MCM 13-177 mm2

400 1 #4 to 600 MCM 21-304 mm2

600 2 #2 to 600 MCM 33-304 mm2

800, 1000, 1200 4 1600, 2000, 2600, 3000 8 #2 to 600 MCM 33-304 mm2

1 For ZTGD Series data, contact the GE Zenith factory

Standard MX150 Control Setting Ranges Control Function Range Factory Setting

Source 1 Line Sensing – Under-voltage Dropout/Pickup 75-98% 80%

85-100% 90%

Source 2 Line Sensing – Under-voltage Dropout/Pickup 75-98% 80%

85-100% 90%

Source 2 Line Sensing – Under-frequency Dropout/Pickup 88-98% 90%

90-100% 95%Time Delay – Engine Start (Acc. P1) 0-10 seconds 3 secondsTime Delay – Engine Cool Down (Acc. U) 0-60 minutes 5 minutesTime Delay – Transfer to Source 2 (Acc. W) 0-5 minutes 1 secondTime Delay – Retransfer to Source 1 (Acc. T) 0-60 minutes 30 minutesTime Delay – Motor Disconnect or Transfer Presignal (Acc. UMD, or T3/W3) 0-60 seconds 20 secondsDelayed Transition Time Delays (DT, DW) 0-10 minutes 5 seconds

Event Exerciser (CDT) 5-60 min.-1,7,14 or 28 days load or no load 20 min. - 7 days no loadProgrammable Event Exerciser (CDP) 365 day cycle, load or no load 0 min. - 7 days no load

MEXEG Voltage Imbalance (VI) 5-20% nominal; 10-30 sec. 10% Fail, 8% Restore; 30 sec.Elevator Pre-Signal (T3/W3) 0-60 seconds 20 secondsSequential Motor Load Disconnect (A62) 0-5 minutes 20 secondsOptions

Motor Load Disconnect (UMD) 0-60 seconds 5 seconds

MSTDG

Testing Standards UL, CSA and IEC listed UL 1008, CSA 22.2 No. 178, IEC 947-6-1 Ringing wave immunity IEEE 472 (ANSI C37.90A) Conducted and Radiated Emissions EN55022 Class B (CISPR 22) (Exceeds EN55011 & MILSTD 461 Class 3) ESD immunity test EN61000-4-2 Class B (Level 4) Radiated RF, electromagnetic field immunity test EN61000-4-3 (ENV50140) 10v/m Electrical fast, transient/burst immunity test EN61000-4-4 Surge immunity test EN61000-4-5 IEEE C62.41 1.2 X 50µs, 0.5 & 4 kV Conducted immunity test EN61000-4-6 (ENV50141) Voltage dips and interruption immunity EN61000-4-11


Section 14


Z A 0 Z E C— Z V CModel/Type Control

PanelApplication Ampere

SizeSwitched

Poles

Z T G 0 0 0 A 0 0 0 0 4 BStandard (Open Transition)

Z T G D 0 0Delayed Transition

Entelli-Switch 150 Micro-processor

Control Unit

Utility-Generator

40 amps 2 Poles

Enclosure Type

0 1Type 1 Enclosed

U 0 0 8 EUtility-Utility

80 amps 3 Poles

1 2Type 12 Enclosure

M 0 1 0 FManualTransfer

100 amps

0 1 5150 amps

0 2 0200 amps

0 2 2225 amps

0 2 6260 amps

0 4 0400 amps

0 6 0600 amps

0 8 0800 amps

1 0 01000 amps

1 2 01200 amps

1 6 01600 amps

2 0 02000 amps

2 6 02600 amps

3 0 03000 amps

4 Poles

3 RType 3R Enclosure

4 0Type 4 Enclosure

Type 4X Enclosure

Open Style Unit

4 X

0 0

A B M S T D

M E X E

M A N O

Consult Table Below

Then chooseadditional accessories

6A

6AP

A1

A1E

A3

A4

A62

ATGEW-X

CTAP

DS

HT

LCM

M90

M90A

M90B

M91

M91A

M91B

MCM

OCVR-15G

OCVR-1SS

T3/W3

UMD

VI

None

Operational Voltage Accessories

Product # ExampleZTG000A00040F-ZEC01ZVC40MSTDThis number string shows the correct formatfor a ZTG Series Automatic Transfer Switchwith an MX150 microprocessor control unit,Utility - Generator, 400 amps, 4 pole, NEMAType 1 enclosure, 120/208V 3φ, 4 wire, 60 Hzsystem with the standard group of accessories.

Switch Types—Standard: Unless otherwise noted, thestandard switch with quick transfer willbe supplied.

—Delayed Transition:When ordered asthe ZTGD, the delayed transition switchoffers time delay during transfer fromone position to the other. This is primarilyfor transfer of large motor or inductiveloads. The operation of the delayedtransition switch is totally independentof the synchronism of the power sources,eliminating the need for in-phase monitorsor extensive motor-disconnect controlwiring between the transfer switch andmotor control centers.

UL 1008 Withstand and Closing RatingsPlease refer to GE Zenith Controls BulletinTB-1102.

A B Voltage Phase Config. Hz

1 0 120 1 2 wire 60 2 0 120/240 1 3 wire 60 2 1 120/208 1 3 wire 60 3 0 240 3 3 wire 60 3 1 208 3 3 wire 60 3 2 220 3 3 wire 50 3 3 120/240 3 4 wire 50 3 4 110/220 3 4 wire 60 3 5 139/240 3 4 wire 60 3 8 120/240 3 4 wire 60 4 0 120/208 3 4 wire 60 4 1 127/220 3 4 wire 60 4 2 127/220 3 4 wire 50 5 0 480 3 3 wire 60 5 1 440 3 3 wire 60 5 2 440 3 3 wire 50 5 5 460 1 3 wire 50 5 7 480 1 2 wire 60 5 8 254/440 3 4 wire 60 6 0 575 3 3 wire 60 6 1 347/600 3 4 wire 60 7 0 277/480 3 4 wire 60 7 1 277 1 2 wire 60 7 4 266/460 3 4 wire 60 7 5 460 3 3 wire 60 8 0 120/240 2 4/5 wire 60 8 2 380 1 2 wire 50 9 0 240/416 3 4 wire 60 9 1 220/380 3 4 wire 60 9 2 220/380 3 4 wire 50 9 3 240/416 3 4 wire 50 9 7 380 3 3 wire 60

Note: Operating voltage must be specified at time of order. Only the most common voltages are shown above.

ZTG Series



Section 14



NEMA 1 Weight Ampere Ref. Open NEMA Application Model Rating Poles Height (A) Width (B) Depth (C) Figure Type 1 Notes

40, 80 2, 3 24 (61) 18 (46) 11 (28) A 21 (10) 57 (26)

4 24 (61) 18 (46) 11 (28)

A 21 (10) 60 (27) 1 - 6

100, 150 2, 3 24 (61) 18 (46) 11 (28) A 21 (10) 57 (26)

4 24 (61) 18 (46) 11 (28)

A 21 (10) 60 (27) 1 - 6

200 2, 3 24 (61) 18 (46) 11 (28) A 21 (10) 57 (26)

4 24 (61) 18 (46) 11 (28) A 21 (10) 60 (27) 1 - 6

225, 260, 400 2, 3 46 (117) 24 (61) 14 (36) A 70 (32) 175 (80)

4 46 (117) 24 (61) 14 (36) A 75 (34) 180 (82) 1 - 5

600 2, 3 66 (168) 24 (61) 19.5 (50) B 165 (75) 400 (450)

4 66 (168) 24 (61) 19.5 (50) B 185 (84) 450 (204) 1 - 5, 7

800, 1000, 1200 2, 3 74 (188) 40 (102) 19.5 (50) B 190 (86) 455 (206)

4 74 (188) 40 (102) 19.5 (50) B 210 (95) 540 (245) 1 - 5, 7

1600, 2000 3 90 (229) 35.5 (90) 48 (122) C 345 (156) 1010 (458)

4 90 (229) 35.5 (90) 48 (122) C 450 (204) 1160 (526) 1 - 5, 7-8

2600, 3000 3 90 (229) 35.5 (90) 48 (122) C 465 (211) 1010 (458)

4 90 (229) 35.5 (90) 48 (122) C 670 (304) 1160 (526) 1 - 5, 7-8

40, 80 2, 3 46 (117) 24 (61) 14 (36) A 21 (10) 57 (26)

4 46 (117) 24 (61) 14 (36) A 21 (10) 60 (27) 1 - 6

100, 150 2, 3 46 (117) 24 (61) 14 (36) A 21 (10) 57 (26)

4 46 (117) 24 (61) 14 (36) A 21 (10) 60 (27) 1 - 6

200, 225 2, 3 46 (117) 24 (61) 14 (36) A 21 (10) 57 (26)

4 46 (117) 24 (61) 14 (36) A 21 (10) 60 (27) 1 - 6

260, 400 2, 3 46 (117) 24 (61) 14 (36) A 80 (36) 220 (100)

4 46 (117) 24 (61) 14 (36) A 85 (39) 230 (102) 1 - 5

600 2, 3 66 (168) 24 (61) 19.5 (50) B 185 (84) 400 (181)

4 66 (168) 24 (61) 19.5 (50) B 205 (93) 450 (204) 1 - 5, 7

800, 1000, 1200 2, 3 74 (188) 40 (102) 19.5 (50) B 210 (95) 475 (215)

4 74 (188) 40 (102) 19.5 (50) B 230 (104) 560 (254) 1 - 5, 7

1600, 2000 3 90 (229) 35.5 (90) 48 (122) C 365 (166) 1010 (458)

4 90 (229) 35.5 (90) 48 (122) C 470 (204) 1160 (526) 1 - 5, 7-8

2600, 3000 3 90 (229) 35.5 (90) 48 (122) C 485 (220) 1130 (513)

4 90 (229) 35.5 (90) 48 (122) C 690 (313) 1395 (633) 1 - 5, 7-8

ZTG

ZTGD

1. Metric dimensions (cm) and weights (kg) shown in parentheses adjacent to English measurements.

2. Includes 1.25" door projection beyond base depth. Allow a minimum of 3" additional depth for projection of handle, lights, switches, pushbuttons, etc.

3. All dimensions and weights are approximate and subject to change without notice.

4. Packing materials must be added to weights shown. Allow 15% additional weight for cartons, skids, crates, etc.

5. Special enclosure (NEMA 3R, 4, 4X, 12, etc.) dimensions and layouts may differ. Consult the GE Zenith factory for details.

6. A ZTG(D) 40-225A, when ordered with the following options, will require a larger enclosure: A62(T), Digital Meter, HT, OCVR-1SG, OCVR-1SS. Contact the GE Zenith factory for dimensions.

7. Add 3" in height for removable lifting eyes.

8. Ventilation louvers on side and rear of enclosure at 1600-3000 amps. One set of louvers must be clear for airflow with standard cable connections.

Reference Figures

Figure A Figure B Figure C

Application Notes:

Models ZTG and ZTGD

Dimensional and Weight Specifications


Section 14


Models ZTGSE and ZTGDSE

FeaturesWhile providing the functionality of an automatic transfer switchthe ZTGSE integrates the utility circuit breaker, optional surgeprotection device and power monitor into one simple coordinated package.

—Suitable for use as Service Entrance equipment—Ratings 40 to 3000 amps (2, 3 or 4 poles)—UL 1008 listed at 480 Vac—Double throw, mechanically interlocked contactor mechanism

—Electrically operated, mechanically held—Designed for emergency and standby applications—Optional Load center for multiple loadside connections available up to 240 volts

—Additional options include battery charger, GFP, shunt trip selector, power monitor and surge protection device

—Available with delayed transition feature

ZTGSE switches are equipped with GE Zenith’s next-generationMX150 microprocessor panel, which controls the operation anddisplays the status of the transfer switch’s position, timers andavailable sources. As an embedded digital controller, the MX150offers high reliability and ease of unattended operation across arange of applications. The MX150 features include:

—Timer and voltage/frequency settings adjustable without disconnection from the power section

—Built-in diagnostics with an LCD display for immediate troubleshooting

—LED/LCD indicators for ease of viewing and long life—Nonvolatile memory—clock battery backup not required forstandard switch operation

—Processor and digital circuitry isolated from line voltage—Inputs optoisolated for high electrical immunity to transientsand noise

—Communications header for network interface

Fully Approved—UL891, UL1008, CSA 22.2—Ringing wave immunity per IEEE 472 (ANSI C37.90A).—Conducted and Radiated Emissions per EN55022 Class B (CISPR 11) (Exceeds EN55011 & MILSTD 461 Class 3)

—ESD immunity test per EN61000-4-2 (Level 4)—Radiated RF, electromagnetic field immunity test per EN61000-4-3 (ENV50140) 10v/m

—Electrical fast transient/burst immunity test per EN61000-4-4.—Surge immunity test per EN61000-4-5 IEEE C62.41 (1.2 X 50ms, 5 & 8 kV)


Design and Construction Features—Includes Normal (Source 1) molded or insulated case style circuit breaker 2 or 3 pole

—Includes mechanical lug connections for cables—Close differential 3 phase under-voltage sensing of the normalsource—factory standard setting 90% pickup, 80% dropout (ad-justable); under-frequency sensing of the normal source factory setting 95% pickup (adjustable)

—Voltage and frequency sensing of the emergency source—factory standard setting 90% pickup voltage, 95% pickup frequency (adjustable)

—Test switch (fast test/load/no load) to simulate normal source failure—automatically bypassed should the emergencysource fail

—NEMA Type 1 enclosure is standard with optional NEMA 3R available

—Ground fault protection is standard 1000A and above—Disconnect link on Neutral and Ground


Section 14




Reference Charts Testing Standards

UL, CSA UL 1008, UL891, CSA 22.2 Ringing wave immunity IEEE 472 (ANSI C37.90A) Conducted and Radiated Emissions EN55022 Class B (CISPR 11) (Exceeds EN55011 & MILSTD 461 Class 3) ESD immunity test EN61000-4-2 (Level 4) Radiated RF, electromagnetic field immunity test EN61000-4-3 (ENV50140) 10v/m Electrical fast, transient/burst immunity test EN61000-4-4 Surge immunity test EN61000-4-5 IEEE C62.41 1.2 X 50µs, 5 & 8 kV Conducted immunity test EN61000-4-6 (ENV50141) Voltage dips and interruption immunity EN61000-4-11

AL/CU UL Listed Solderless Screw-Type Terminals for External Power Connections

Normal, Emergency and Load Terminals

Switch Size (Amps) Cables per Pole Range of Wire Sizes

40, 80, 100, 150 #8 to 3/0 AWG 8-85 mm 200, 225

1 #6 AWG to 250 MCM 13-127 mm

260 #6 AWG to 350 MCM 13-177 mm 400 #4 AWG to 600 MCM 21-304 mm 600 2

#2 AWG to 600 MCM 33-304 mm 800 4


Section 14



Base Model Type Ampere Size SwitchedPoles

EnclosureType

OperationalVoltage

Accessories

B2 Poles

E3 Poles

A 0MX150

MicroprocessorControl Unit

Standard (Open TransitionTransfer Switch)

Z T G

Product # ExampleZTGSE0A0040E-N0140MSTDGThis number string shows the correct format for a ZTGSE Series AutomaticTransfer Switch with an MX150 micro-processor control unit, Utility - Generatorapplication, 400 amps, 3 pole, NEMA Type1 enclosure, 120/208V 3Ø, 4 wire, 60 Hzsystem with the standard group of accessories.

S TM

A 0S E 0ControlPanel

If Required, choose additional accessories.1 0

100 amps

0

1 5150 amps

0

Config.

0Utility -

Generator

E 0SType 1 Enclosure

N 0 1

N 0 1 M S T D G

0 440 amps

0 A BConsult Table

Below

A B Voltage Phase Config. Hz 1 0 120 1 2 wire 60 2 0 120/240 1 3 wire 60 2 1 120/208 3 3 wire 60 3 0 240 3 3 wire 60 3 1 208 3 3 wire 60 3 2 220 3 3 wire 50 3 3 120/240 3 4 wire 50 3 4 110/220 3 4 wire 60 3 5 139/240 3 4 wire 60 3 8 120/240 3 4 wire 60 4 0 120/208 3 4 wire 60 4 1 127/220 3 4 wire 60 4 2 127/220 3 4 wire 50 5 0 480 3 3 wire 60 5 1 440 3 3 wire 60 5 2 440 3 3 wire 50 5 5 460 1 3 wire 50 5 7 480 1 2 wire 60 5 8 254/440 3 4 wire 60 6 0 575 3 3 wire 60 6 1 347/600 3 4 wire 60 7 0 277/480 3 4 wire 60 7 1 277 1 2 wire 60 7 4 266/460 3 4 wire 60 7 5 460 3 3 wire 60 8 0 120/240 2 4/5 wire 60 8 2 380 1 2 wire 50 9 0 240/416 3 4 wire 60 9 1 220/380 3 4 wire 60 9 2 220/380 3 4 wire 50 9 3 240/416 3 4 wire 50 9 7 380 3 3 wire 60

Note: Will need to specify with order the operating voltage.Only the most common ones are shown here

2 0200 amps

0

F4 Poles

Type 3R Enclosure

N 3 R

Standard (DelayedTransition

Transfer Switch)

S ED

0 880 amps

0

4 0400 amps

0

6 0600 amps

0

8 0800 amps

0

2 2220 amps

0

D G

E XM E G

0

2 6260 amps

0

Withstand Current Ratings per UL1008 Maximum Circuit Amps ZTGSE Maximum Circuit Amps When Used With ZTGDSE When Used With Switch Current Specific Switch Specific Ratings Limiting Fuse Coordinated Ratings Coordinated (Amps) ZTGSE/ZTGDSE Breaker Rating (Amps) Breaker Rating

40, 80, 100, 30,000

150, 200, 225 40, 80, 100, 150 50,000

260 200,000 35,000 225, 260, 400, 600 400 - 600 50,000 800 65,000 800 65,000



Section 14



D

H

W

Figure BZTGSE Series Transfer Switch (600-800 Amp)

Figure AZTGSE Series Transfer Switch (40-400 Amp)

Dimensional Specifications ZTGSE and ZTGDSE Model Transfer Switches

NEMA 1 Enclosure NEMA 3R Enclosure

Model Ampere Rating Poles H W D Ref. Fig. H W D Ref. Fig. App. Notes

40-80 2, 3, 4 51(130) 28(71) 16(41) A 51(130) 29(74) 20(51) A 1 - 5 100-200 2, 3, 4 51(130) 28(71) 16(41) A 51(130) 29(74) 20(51) A 1 - 5 225 2, 3, 4 51(130) 28(71) 16(41) A 51(130) 29(74) 20(51) A 1 - 5 ZTGSE/ 260 2, 3, 4 51(130) 28(71) 16(41) A 51(130) 29(74) 20(51) A 1 - 5 ZTGDSE 400 2, 3, 4 51(130) 28(71) 16(41) A 51(130) 29(74) 20(51) A 1 - 5 600 2, 3, 4 73(185) 34(86) 20(51) B 73(185) 34(86) 24(61) B 1 - 6

800 2, 3 73(185) 34(86) 20(51) B 73(185) 34(86) 24(61) B 1 - 6

4 73(185) 40(102) 20(51) B 73(185) 40(102) 24(61) B 1 - 6

Application Notes:1. Metric dimensions (cm) and weights (kg) shown in parentheses adjacent to English measurements.2. Includes 1.25" door projection beyond base depth. Allow a minimum of 3" additional depth for projection of handle, lights, switches, pushbuttons, etc.3. All dimensions and weights are approximate and subject to change without notice.4. Packing materials must be added to weights shown. Allow 15% additional weight for cartons, skids, crates, etc.5. Add 4 inches in depth for NEMA 3R enclosure.6. Add 3” in height for lifting eyes.7. Contact factory for dimensional and weight information for 1000 Amps and above.

Weights

Model Amp Rtg Poles NEMA 1 Weight NEMA 3R Weight

2 157(71) 212(96) 40-80 3 159(72) 214(97) 4 163(74) 218(99) 2 162(74) 217(99) 100-200 3 164(75) 219(99) 4 168(76) 223(101) 2 169(77) 224(102) 225 3 171(78) 226(103) 4 175(79) 230(104) 2 178(81) 233(106) ZTGSE 260 3 183(83) 238(108) 4 187(85) 242(110) 2 254(115) 309(140) 400 3 265(120) 320(145) 4 289(131) 344(156) 2 467(212) 552(250) 600 3 483(219) 568(257) 4 512(232) 597(271) 2 567(257) 652(296) 800 3 577(262) 662(300) 4 662(300) 767(348) 2 262(119) 317(144) 40-400 3 273(124) 328(149) 4 296(134) 351(159) 2 475(215) 560(254) ZTGDSE 600 3 491(222) 576(261) 4 520(236) 605(274) 2 570(259) 655(297) 800 3 580(263) 665(302) 4 665(302) 770(349)

Reference Figures

D

H

W



Section 14


ZTS Series

ZTS Series Automatic Transfer SwitchesAn Introduction to the ZTS Series of Automatic Transfer Switches

Since its introduction, the GE Zenith ZTS Series of transferswitches has become a hallmark of quality and performance.Reliability resulting from superior design and heavy duty constructionhas made the ZTS the industry standard for critical installations.Our emphasis on research and development, designimprovements, materials, manufacturing methods, qualityassurance, and service yields products that have been proven inhundreds of thousands of applications.

Our engineering staff has been dedicated to the improvement andexpansion of our line. Today, GE Zenith offers the widest selection oftransfer switch products worldwide.—ZTS Automatic Transfer Switches40-4000 Amps

—ZTSD Delayed Transition Transfer Switches40-4000 Amps

—ZTSCT Closed Transition Transfer Switches100-4000 Amps

—ZBTS Automatic Transfer/Bypass Switches100-4000 Amps

—ZBTSD Delayed Transition Bypass Switches100-4000 Amps

—ZBTSCT Closed Transition Bypass Switches100-4000 Amps

—ZTSMV Medium Voltage Switches600-3000 Amps

All ZTS products meet or exceed industry requirements allowingspecification and installation confidence.—UL 1008 listed through 480 VAC—CSA C22.2 No. 178 listed through 600 VAC—IEC 947-6-1 listed through 480 VAC— Codes and Standards

NFPA 70, 99, 101, 110IEEE 446, 241NEC 517, 700, 701, 702NEMA ICS2-447

— Controls tested in accordance with:IEEE 472 (ANSI C37.90A)EN55022 Class B (CISPR 22) (Exceeds EN55011 & MILSTD 461 Class 3)EN61000-4-2 (Level 4)EN61000-4-3 (ENV50140) 10 v/mEN61000-4-4EN61000-4-5, IEEE C62.41 (1.2 X 50µs, 0.5 & 4 kV)EN61000-4-6 (ENV50141)EN61000-4-11

— Enclosures meet the requirements of:UL 508, 50ANSI C33.76ICS 6NEMA 250

— Quality System:ISO 9001 Registered

—Equipment (controls and power section) seismic tested to:IBC–2009IEEE–693–2003


Section 14



Model ZTSModel ZTS Automatic Transfer SwitchesThe ZTS Model is the foundation of the transfer switch productline. This ruggedly built power contactor family of switches hasbeen specifically designed for transfer switch duty with depend-ability, versatility and user friendliness of prime concern.

ZTS switches are available in open type construction for switchboard installation or NEMA enclosed to the customer’sspecifications. The power panel components, consisting of power switching contacts, drive mechanism and terminal lugs, aremounted on a specially formed panel. Logic devices including mi-croprocessor control auxiliary time delays and special accessoryequipment are assembled on the door for ease of maintenanceand separation from the power section. They are connected with anumbered wiring harness equipped with a disconnect plug that al-lows isolation of the control panel for maintenance.

ZTS Model Operation

When the normal source fails or the voltage drops to a predeter-mined point (usually 80% of nominal), if required, a circuit isclosed to start the engine generator set. When the emergencysource reaches 90% of rated voltage and 95% of rated fre-quency, the drive solenoid is energized through the emergencycoil control relay, causing the main contacts to disconnect theload from the normal source and connect it to the emergencysource. After the drive solenoid has completed its electrical strokeand is seated, the emergency coil control relay opens to discon-nect it . The transfer switch is now mechanically locked in theemergency position.

When normal voltage is restored to a predetermined point (usu-ally 90% of nominal), the control voltage sensing energizes. Thenormal side coil relay closes, and after the drive solenoid hascompleted its electrical stroke and is seated, the coil control relayopens to disconnect it . The transfer switch is now mechanicallylocked in the normal position.

Drive Mechanism

All GE Zenith ZTS switches employ the simple “over-center” princi-ple to achieve a mechanically locked position in either normal oremergency. GE Zenith’s high speed drive assures contact transferin 100 ms or less. High contact pressure and positive mechanicallock allow for high withstand and closing ratings, far exceedingUL requirements. All ATS units are listed with UL umbrella breakerand current limiting fuse ratings.

Ratings—Ratings 40 to 4000 amperes—2, 3 or 4 Poles—Open type, NEMA 1, 3R, 4, 4X and 12—Available to 600 VAC, 50 or 60 Hz—Suitable for emergency and standby applications on allclasses of load, 100% tungsten rated through 400 amps

—UL 1008 listed at 480 VAC—CSA C22.2 No. 178 certified at 600 VAC—IEC 947-6-1 listed at 480 VAC—Equipment (controls and power section) seismic test qualified to:—IBC–2009—IEEE–693–2003

Performance Features—Contact transfer speed less than 100 milliseconds—High close-in and withstand capability—Temperature rise test per UL 1008 conducted after overloadand endurance tests - exceeds UL requirements

—Available in:ZTS (utility-generator)ZTSU (utility-utility)ZTSG (generator-generator)ZTSM (manual) configurations

Design and Construction Features—Double throw, interlocked operation—Electrically operated, mechanically held by a simple, over- center mechanism

—Segmented silver tungsten alloy contacts with separate arcingcontacts on 600 amp and above

—Arc quenching grids, enclosed arc chambers, and wide contactair gap for superior source-to-source isolation on all units

—Control disconnect switch for safe maintenance—Components accessible for inspection and maintenance with-out removal of the switch or the power conductors

—Mechanical indicator and contact chamber cover designed forinspection, safety and position designation.


Section 14


Model ZTSDModel ZTSD Automatic Transfer SwitchesThe ZTSD Model provides an adjustable time delay after the open-ing of the closed contacts and before the closing of the open con-tacts for transferring large motor and/or transformer loads. Thisdelayed transition time allows for motors to coast down andtransformer fields to decay, thus allowing inductive loads to be re-energized after transfer with only normal inrush starting currents.The delayed transition design is an effective method of handlingthese applications and can be utilized as an alternative to a stan-dard transfer switch equipped with an in-phase monitor.

The delayed transition transfer switch is ideally suited for pump-ing stations, sewage treatment plants, hospital X-ray equipment,or wherever the bulk of the load being controlled consists of large motors and/or transformers. Major UPS manufacturersstrongly recommend the use of delayed transition type transferswitches to ensure proper operation of their rectifier circuit andbattery system.

The ZTSD Model allows a UPS system sufficient delay to recognizea power failure and transfer to batteries, acknowledge the returnof power and allow the rectifier to walk onto the new source, re-ducing any transfer anomalies.

Except for the delayed transition period, the performance, operat-ing capabilities, ratings, UL listings, with-stand current values and available options are identical to those of the GE Zenith ZTS SeriesAutomatic Transfer Switches.

The ZTSD incorporates all of the important features of the stan-dard ZTS Series switches as well as features oriented toward itsspecific operation.

Ratings—Ratings 40 to 4000 amperes—2, 3 or 4 Poles—Open type, NEMA1, 3R, 4, 4X and 12—Available to 600 VAC, 50 or 60 Hz—Suitable for emergency and standby applications on all classesof load, 100% tungsten rated through 400 amps


Performance Features—Adjustable center-off time to meet specific installation requirements

—High close-in and withstand capability—Temperature rise test per UL 1008 conducted after overload andendurance tests - exceeds UL requirements

—Available in:ZTSD (utility-generator)ZTSDU (utility-utility)ZTSDG (generator-generator)ZTSDM (manual) configurations

Design and Construction Features—Mechanically interlocked center-off position for load decay—Electrically operated, mechanically held by a simple, over-centermechanism

—Segmented silver tungsten alloy contacts with separate arcingcontacts on 600 amp and above

—Arc quenching grids, enclosed arc chambers, and wide contactair gap for superior source-to-source isolation on all units

—Control circuit disconnect plug and drive inhibit switch for safemaintenance

—Components accessible for inspection and maintenance withoutremoval of the switch or the power conductors

— Mechanical indicator and contact chamber cover designed forinspection, safety and position designation

ZTSDDelayed Transition Transfer Switch

400 amp, 3 pole(shown)

L

EN

1 2Open


Section 14



Model ZTSCT

Model ZTSCT Closed Transition Transfer SwitchesAn automatic transfer switch is the single vital link between utilityand alternate power supplies. Yet it is the very operation and re-transfer back to normal that may be the cause of concern formany users. Loads such as electronic equipment, HID lighting,motor starters, etc., are sensitive to even the 30-100 millisecondoutage experienced during a typical transfer switch operation.Therefore, testing and use of the standby system is not optimizedand necessary system checks are not performed because of con-cerns about the effects of transfer.

In addition to these applications, opportunities for peak shavingand utility incentive rates may be passed over because of the in-ability to accept the short power interruptions inflicted during op-eration. In response to the needs of these installations, GE Zenithoffers the ZTSCT Closed Transition Transfer Switch and ZBTSCTClosed Transition Transfer/Bypass Switch.

These products utilize the proven switching technology of theZTS/ZTSD Models of transfer switches combined with controls developed during GE Zenith’s years of experience in the manufac-ture of synchronizing switchgear. They provide the capability totransfer in a closed transition mode when both sources are withinpreset parameters. Utilizing GE Zenith’s high speed drive system,the overlap of the normal and alternate sources is less than 100milliseconds. When one source is not within specified limits, suchas during a power failure, the ZTSCT operates in an open transi-tion mode.

Description and Operation

Closed transition switches have two basic modes of operation.During a failure of one source or an out of specification condition,the ZTSCT Model operates as a delayed transition switch (ZTSDModel). This sequence allows clear separation of an unreliablesource from an available one.

Closed transition operation takes place when both sources are within preset voltage and frequency parameters and the phaseangle differential is less than five degrees. The closed transitionsequence may be initiated by the test switch, a load exerciserclock, peak shaving controls or special utility incentive rate signals.

Ratings—Ratings 100 to 4000 amperes—2, 3 or 4 Poles—Open type, NEMA 1, 3R, 4, 4X and 12—Available in Transfer Switch (ZTSCT) or Transfer/BypassSwitch (ZBTSCT) styles

—Suitable for emergency and standby applications on all classes of load, 100% tungsten rated through 400 amps

—UL 1008 listed at 480 VAC—CSA certified at 600 VAC—IEC listed at 480 VAC—Equipment (controls and power section) seismic test qualified to:—IBC–2009—IEEE–693–2003

Performance Features—Incorporates the applicable features of the ZTS and ZBTS Series—Source parallel time of less than 100 milliseconds—Closed transition operation (no power interruption) during transfer and retransfer when sources are within specified parameters

—Open transition transfer operation is initiated upon a source failure

—Available in:ZTSCT (utility-generator)ZTSCTU (utility-utility)ZTSCTM (manual) configurations

Design and Construction Features—Electrically operated, mechanically held—Segmented silver tungsten alloy contacts with separate arcingcontacts on 600 amps and above

—Arc quenching grids, enclosed arc chambers, and wide contactair gap

—Components accessible for inspection and maintenance with-out removal of the switch or the power conductors

—Standard annunciation and operational selection package foruser interface

—Active control of the generator governor not required, but isavailable as an option

ZTSCTClosed Transition Transfer Switch

800 amp, 3 pole


Section 14


Models ZBTS, ZBTSD and ZBTSCT

Models ZBTS, ZBTSD and ZBTSCT Bypass-Isolation Transfer SwitchesThe ZBTS Model Bypass-Isolation Transfer Switch consists of twomajor modules – the automatic transfer and the bypass-isolationswitch. The automatic transfer switch module is the proven GE Zenith ZTS Series, built in ZTS, ZTSD or ZTSCT configuration andconstructed for reliable operation. The same components, heavy-duty silver alloy contacts, rugged drive mechanism and silver plated bus bar inter-connections are used throughout theZBTS Model.

The bypass section is a basic ZTS switch provided with a quickmake/quick break manual load transfer handle and GE Zenith’s control/interlock system consisting of both mechanical and electrical interlocks. The bypass is equipped with normal failuresensing and a time delay to start the engine automatically if the ATS has been removed for service and a failure occurs. The modules are mounted in a compact enclosure and completely in-terconnected requiring only the normal source, emergency sourceand load cable connections. Once installed, no cables need to be removed to isolate the transfer switch module for maintenance or inspection. The automatic transfer switch may be withdrawn for testing or maintenance without disturbing theload. The transfer switch module has three positions:

1. Automatic: The transfer switch is carrying the load, and the by-pass switch is in the open position. This is the normal operatingmode.

2. Test: The bypass switch is closed and feeding the load.The transfer switch has control power and may be operatedfor test purposes via the test switch on the enclosure door.

3. Isolate: The transfer switch is withdrawn from all power andready for maintenance. The load is served by the bypassswitch.

The ZTS Transfer Switch is installed on a draw-out mechanism,with electrical and mechanical interlocks for secure removal afterthe load has been bypassed. The ZTS control/logic panel ismounted on the enclosure door and connected by a wire harnessand multi-pin disconnect plugs. The transfer switch and/or the control panel may be tested, isolated and removed for maintenancewithout load interruption.

The bypass-isolation switch module is the same basic design asthe transfer switch module and has the same electrical ratings.Manually operated, it features high speed, quick make/quickbreak contact action. The bypass-isolation switch has three basicpositions:

1. Automatic: Normal bypass contacts open, emergency bypasscontacts open.

2. Bypass Normal: Normal bypass contacts closed, emergency by-pass contacts open.

3. Bypass Emergency: Normal bypass contacts open, emergencybypass contacts closed.

GE Zenith’s design requires no additional load break contactswhich cause load interruption during bypass-isolation functions.The bypass-isolation switch contacts are out of the system current path except during actual bypass operation.

Therefore, they are not constantly exposed to the destructive ef-fects of potential fault currents. The normal, emergency and loadare connected between the automatic transfer switch and the by-pass-isolation switch through solidly braced isolating contacts that are open when the transfer switch is isolated. All current carrying components provide high withstand currentratings in excess of those specified in UL 1008 standards.

ZBTSTransfer/Bypass-Isolation Transfer Switch

1200 amp, 3 pole(shown)


Section 14



Models ZBTS, ZBTSD and ZBTSCT

Models ZBTS, ZBTSD and ZBTSCT Bypass-Isolation TransferSwitches (Continued)Interlocks and Indicators

Every ZBTS Model Bypass-Isolation Transfer Switch is suppliedwith all necessary electrical and mechanical interlocks to preventimproper sequence of operation as well as the necessary inter-locking circuit for engine starting integrity. Each ZBTS is furnishedwith a detailed step by step operating instruction plate as well asthe following functional diagnostic lights:

Normal Source AvailableEmergency Source AvailableBypass Switch in Normal PositionBypass Switch in Emergency PositionAutomatic Transfer Switch in Test PositionAutomatic Transfer Switch IsolatedAutomatic Transfer Switch InhibitAutomatic Transfer Switch Operator Disconnect Switch “Off”Automatic Transfer Switch in Normal PositionAutomatic Transfer Switch in Emergency Position

ZBTSCT Model – Closed TransitionTransfer/Bypass-Isolation Switches

The ZTSCT Closed Transition Transfer Switch may be applied witha bypass-isolation switch for the utmost in reliability and versatil-ity. The ZBTSCT Series provides the ability to withdraw the transferswitch unit for maintenance or inspection. Reference the ZTSCTunit features and operational description for more details.

ZBTSD Model – Delayed TransitionTransfer/Bypass-Isolation Switches

The ZTSD Delayed Transition Transfer Switch with a timed center-off position is available in a bypass configuration. The ZBTSD Se-ries Bypass incorporates the features of both the ZBTSBypass-Isolation Switch and the ZTSD unit for transfer of largemotor loads, transformers, UPS systems or load shedding to aneutral “Off” position. Reference the ZTSD unit features and oper-ational description for more details.

Ratings—Ratings 100 to 4000 amperes—2, 3 or 4 Poles—Open type, NEMA 1, 3R, 4, 4X and 12—Available with ZTS, ZTSD and ZTSCT Series Transfer Switch—Bypass and transfer switch have identical ratings—Suitable for emergency and standby applications on all classesof load, 100% tungsten rated through 400 amps


Performance Features—Load is not interrupted during bypass operation—High close-in and withstand capability—Temperature rise test per UL 1008 conducted after overloadand endurance tests - exceeds UL requirements

—Available in:ZBTS (utility-generator)ZBTSU (utility-utility)ZBTSG (generator-generator)ZBTSM (manual) configurations; models include standard, delayed and closed transition

Design and Construction Features—Transfer switch is located on a draw out mechanism to facilitate maintenance

—Emergency power systems can be electrically tested without disturbing the load

—Power cables do not have to be disconnected to remove thetransfer switch

—Bypass to any available source with transfer switch removed—Engine start circuit maintained during bypass operation; normalpower failure causes engine start contact closure even with theATS removed

—Diagnostic lights and detailed instructions for simple step-by-step operation

—Mechanical and electrical interlocks ensure proper sequenceof operation

—Bypass switch contacts are closed only during the bypass- isolation operation

—Silver plated copper bus interconnection of the transfer and by-pass switches on all sizes


Section 14


MX250 Microprocessor Controller

Automatic Transfer Switch ControllerWith more powerful integrated features, the new MX250 Micro-processor, standard with the entire ZTS product family, offers expanded programmability and field adaptability. This premiumproduct is designed for use in specification-grade applications.As an embedded digital controller, the MX250 offers high reliability and ease of unattended operation across a range of applications.

—Available in ALL transfer modes:—Open, Delayed and Bypass—Closed

—User-friendly programmable engine exerciser, used for the engine generator with or without load, at ANY interval in a one-year period

—Operating voltages available in a single controller for most domestic and international applications

—Real-time display of ATS status, including active timer(s)—Multiple levels of user-defined password protection—Serial communications allowing connectivity with other ATS's, paralleling switchgear, and SCADA systems

—Time-tested synchronous logic automatically measures phase angle and frequency allowing disturbance-free transfer

—Unsurpassed statistical ATS/System monitoring available inreal-time

—T3/W3 elevator pre-signal. Automatically bypassed if the se-lected source fails, minimizing time an elevator is without power

—Universal Motor Disconnect (UMD) sends a pre-signal, post-signal or both to any motor control center. Not bypassed inan outage, the UMD ensures safety in the event of a singlephase loss

—Voltage unbalance detection standard—Imbedded synchoscope with display to ensure smooth transfer

Performance Features—UL, CSA and IEC listed—Ringing wave immunity per IEEE 472 (ANSI C37.90A)—Condusted and Radiated Emissions per EN55022 Class B (CISPR 22) (Exceeds EN55011 and MILSTD 461 Class 3)

—ESD Immunity test per EN61000-4-2 (Level 4)—Radiated RF, electromagnetic field immunity test per EN61000-4-3 (ENV50140) 10v/m

—Electrical fast transient/burst immunity test for EN61000-4-4—Surge immunity test per EN61000-4-5 IEEE C62.41 (1.2 x 50µs, 0.5 and 4 kV)


User-Friendly OperationLEDs are used in a recognizable line configuration for continuousmonitoring of switch position. A new LCD display shows sourceavailability, exercise time delay operation and system sourcecondition. A new simplified adjustment is featured for voltage,frequency and time delay settings.

The control operates off a close differential 3 phase under-voltage sensing of source 1, factory standard setting 90% pickup, 80%dropout; under-frequency sensing of source 1 factory setting 95%pickup; voltage and frequency sensing of source 2, factory standardsetting 90% pickup voltage, 95% pickup frequency. All factory settingsare operator adjustable see table on reverse side).

A test is standard (fast test/load/no load) to simulate source 1 failure -automatically bypassed should source 2 fail.

Entelli-Switch 250

M O R E

L O A D D I S C O N N E C T T D

P R E X F R

T I M E R E M A I N I N G 0 4 : 0 2


Section 14



ZTS SeriesZTS Series Accessory Definitions

6P Microprocessor activated test switch (Momentary)

6A Hardwired test switch (Maintained)

6AP Microprocessor activated test switch (Maintained)

6B Hardwired test switch (Maintained Auto - MomentaryTest) Key operated

6C Hardwired test switch (Maintained Auto - MaintainedTest) Key operated

A1 Auxiliary Contact S.P.D.T. - Normal (Source 1) Failure

A1E Auxiliary Contact S.P.D.T. - Emergency (Source 2) Failure

A3 Auxiliary Contact - closed in emergency (Source 2) Addi-tional available (10 max.) on ZTS Series and need to bespecified

A4 Auxiliary Contact - closed in normal (Source 1) Additionalavailable (10 max.) on ZTS Series and need to be specified

A62 Motor disconnect and staged restart (1 contact)

AB3 Auxiliary Contact - closed in bypass emergency (Source 2)(S.P.T.D.) (Standard up to 400A) Additional available (10max.) on ZBTS Series and need to be specified

AB4 Auxiliary Contact - closed in bypass normal (Source 1)(S.P.T.D.) (Standard up to 400A) Additional available (10max.) on ZBTS Series and need to be specified

Calibrate Microprocessor activated calibration feature

CDP Programmable exerciser daily, 7/14/28/365 days user- selectable, with or without load

CDT Exerciser no load timer

CTAP Chicago transfer alarm panel mounted in door of enclosure. Includes 3 aux. contacts and fuse.

DS Disconnect Switch. Disconnects source voltage to trans-fer power panel.

DT (Delayed Transition Only) Time Delay from Neutral Switch position to Source 1 on retransfer

DW (Delayed Transition Only) Time Delay from Neutral Switch position to Source 2 on retransfer

E Engine Start RelayECM Ethernet Communication Adapter. Requires MCM (Modbus)

Accessory.

EL/P Event log of last 16 eventsF Fan contact, closed when engine runs.HT(1)(2) Heater and Thermostat 208/240V (1) 380/600V (2)

mounted and interwired in enclosure. (requires largerenclosure for 40-200A)

K Frequency Meter (Analog) - Door mounted

K/P Frequency Indication on the controllerLNP Center-off position LCD-IndicatorL1 LED light indicates Switch in Source 2 position

L2 LED light indicates Switch in Source 1 positionL3 LED light indicates Source 1 availableL4 LED light indicates Source 2 availableLCM LonWorks Communication Module

M1 Single Phase Amp Meter (Analog)

M2 Three Phase Amp Meter (Analog)

M90 EPM2000 True RMS Digital Meter with display (Amps, Volts,Power, Energy, Power Factory and Frequency). 3 Line LEDDisplay. 50/60 Hz Universal Operation. 1 or 3 phase.Standard Modbus RTU RS485 communications capability. 40 - 1200 Amps.

M90A Adds Pre-Wiring for Enervista™ Viewpoint Monitoring ofM90 Accessory & ATS Status using Modbus RS485 Serial Communications


M91 EPM6000 True RMS Digital Meter with display (Amps,Volts, Power, Energy, Power Factory and Frequency,THD). Certified energy and demand metering. MeetsANSI C12.20 and IEC 687 Accuracy Classes. Front LRDAPort Laptop Connection. Standard Modbus RTU RS485or DNP 3.0 communications capability.



MCM Modbus RTU Communication Module

N1 Running Time Indicator - Door mounted

N2 Operation Counter - Door Mounted

P1 Engine Start Timer (adjustable to 6 sec.)

P2 Engine Start Timer (adjustable to 300 sec.)

Q2 Peak shave/remote load test/area protection - Relay(S.P.D.T.) (Need to specify voltage - 120 VAC, 24 VAC, 24VDC - 120V default standard)

Q3 Inhibit transfer to emergency (Source 2) (load add relay)- Relay (S.P.D.T.) (Need to specify voltage - 120 VAC, 24VAC, 24 VDC - 120V default standard)

Q7 Inhibit transfer to normal (Source 1) - Relay (S.P.D.T.) (Needto specify voltage - 120 VAC, 24 VAC, 24 VDC - 120V defaultstandard)

R1-1/R1-3 Over Voltage sensing for normal (Source 1) single (R1-1)or three (R1-3) phase

R15/R15D Load Shed. Should Source 2 become overloaded, a signal can be given to switch to the Neutral position.

R16 Phase rotation sensing of Normal (Source 1) and Emergency(Source 2)

R26/R26D Interruptable Power Rate Provisions. Allow transfer out of Source 1 position to Mid position or dead Source 2.Alarm and Pre-Signal circuit included. (Need to specifyvoltage - 120 VAC, 24 VAC, 24 VDC - 120V default standard)

R50 In Phase monitor between Normal (Source 1) and Emer-gency (Source 2) to allow transfer

S5P Microprocessor activated auto/manual retransfer selector switch for trnsferring to Normal (Source 1) (includes microprocessor activated YN accessory)

S12P Microprocessor activated auto/manual retransfer selector switch for trnsferring to Normal (Source 1) (includes microprocessor activated YN & YE accessory)


Section 14


ZTS SeriesZTS Series Accessory Definitions (continued)

ZTS Series Accessory Group Matrix

S13P Microprocessor activated commit/no commit on trans-ferring to Emergency (Source 2) (with enable/disablesettings)

S14 Keyed selector switch for retransfer to normal-test-auto

SW1 Auto/Off/Start Engine control selector - Door mounted(keyed or non-keyed operation available)

SW2 Auto/Off Engine control selector - Door mounted (keyedor non-keyed operation available)

SW3 Source Priority Selector Switch - Door mountedAllows selection of Source 1 or Source 2 to be the PrimeSource. Transfer Switch will transfer to selected PrimeSource if that Source is available. (keyed or non-keyedoperation available)

T Retransfer to Normal (Source 1) adjustable time delay

T3/W3 Pre-signal contact on transfer to Normal (Source 1) orEmergency (Source 2) during test

U Engine stop /cool adjustable cool down timer

UMD Pre and ppost transfer output adjustable time range.Functions in both directions. Includes 2 circuits. (Additionalcircuits available).

VI Voltage imbalance between phases (3 Phase only)

W Adjustabvle time delay on transfer to Emergency(Source 2)

YEN Bypass transfer timers function (soft key switch in micro-processor)

Accessories

6P

A1

A1E

A3

A4

Calibrate

CDT

CDP

**DS

*DT

*DW

E

EL/P

K/P

L1

L2

L3

L4

*LNP

P1

Q2

Q3

Q7

R1-1

R1-3

R15

*R15D

R16

R50

S5P

S12P

S13P

T

T3/W3

U

UMD

VI

W

YEN

MSTD MEXE MCON MSEN MSPE MPSG

2

2

2

2

2

2

2

2

3

3

2

2

2

2

2

2

2

2

2

2

2

2

Group Packages

22

3

* Delayed Transition Units Only.** Optional for 40-400 Amp

Standard Accessory included in the group package.Optional Accessory not included but can be added to group package.Optional Accessory. Can not be used with accessory having the same symbol.N/ADenotes an Accessory with 2 circuits as a standard.Denotes an Accessory with 3 circuits as a standard.


Section 14



ZTS SeriesZTS Series Ordering Information

Model/Type Ampere Size SwitchedPoles

Enclosure Type Operational Voltage Accessories

A BConsult Table BelowType 1 Enclosed

Open Style Unit

B2 Poles

F4 Poles

E3 Poles

B 0

Z B 0 Z E C Z V C

T DSM

ControlPanel

Switch Types—Standard: Unless otherwise noted, thestandard switch with quick transfer willbe supplied.

—Delayed Transition: When ordered as theZTSD, the delayed transition switch offerstime delay during transfer from one positionto the other. This is primarily for transfer oflarge motor or inductive loads.

—Closed Transition: When ordered as theZTSCT, the closed transition switch offerstwo basic modes of operation. During afailure of one source or an out of specifica-tion condition, the ZTSCT Model operatesas a standard delayed transition switch(ZTSD Model). This sequence allows clearseparation of an unreliable source from anavailable one.

—Bypass:When ordered as the ZBTS, thebypass transition switch offers a draw-outmechanism, with electrical and mechanicalinterlocks for secure removal after load by-pass. In this way the transfer switch and/orthe control panel may be tested, isolatedand removed for maintenance withoutload interruption.

Then chooseadditional accessories

Application

0Utility - Generator

MManual

GGen to Gen

UUtility - Utility

Type 4 Enclosure

Type 12 Enclosure

Type 4X Enclosure

Type 3R Enclosure

0 1

1 2

3 R

4 0

4 X

0 0

A B Voltage Phase ConWg. Hz 1 0 120 1 2 wire 60 2 0 120/240 1 3 wire 60 2 1 120/208 1 3 wire 60 3 0 240 3 3 wire 60 3 1 208 3 3 wire 60 3 2 220 3 3 wire 50 3 3 120/240 3 4 wire 50 3 4 110/220 3 4 wire 60 3 5 139/240 3 4 wire 60 3 8 120/240 3 4 wire 60 4 0 120/208 3 4 wire 60 4 1 127/220 3 4 wire 60 4 2 127/220 3 4 wire 50 5 0 480 3 3 wire 60 5 1 440 3 3 wire 60 5 2 440 3 3 wire 50 5 5 460 1 3 wire 50 5 7 480 1 2 wire 60 5 8 254/440 3 4 wire 60 6 0 575 3 3 wire 60 6 1 347/600 3 4 wire 60 7 0 277/480 3 4 wire 60 7 1 277 1 2 wire 60 7 4 266/460 3 4 wire 60 7 5 460 3 3 wire 60 8 0 120/240 2 4/5 wire 60 8 2 380 1 2 wire 50 9 0 240/416 3 4 wire 60 9 1 220/380 3 4 wire 60 9 2 220/380 3 4 wire 50 9 3 240/416 3 4 wire 50 9 7 380 3 3 wire 60

Note: Operating voltage must be specified at time of order. Only the most common voltages are shown above.

X EEM

O NCM

E NSM

P ESM

S GPM

N 0AM

Entelli-Switch 250MicroprocessorControl Unit

Product # ExampleZTSCT0B00040F-ZEC01ZVC40MSTDThis number string shows the correct format for a ZTS Model Auto-matic Transfer Switch with closed transition, an Entelli-Switch 250microprocessor control unit, Utility - Generator, 400 amps, 4 pole,NEMA Type 1 enclosure, 120/208V 3F, 4 wire, 60 Hz system withthe standard group of accessories.

UL 1008 Withstand and Closing RatingsPlease refer to GE Zenith Controls Bulletin TB-1102.

Standard (Open Transition)

Z T S 0 0 0

Z T S D 0 0

Z T S C T 0

Z B T S 0 0

Delayed Transition

Closed Transition

Standard (Open Transition) w/Bypass

Z B T S D 0Delayed Transition w/Bypass

Z B T S C TClosed Transition w/Bypass

40 amps

0 0 4

80 amps

0 0 8

100 amps

0 1 0

150 amps

0 1 5

225 amps

0 2 2

260 amps

0 2 6

400 amps

0 4 0

600 amps

0 6 0

800 amps

0 8 0

1000 amps

1 0 0

1200 amps

1 2 0

1600 amps

1 6 0

2000 amps

2 0 0

3000 amps

3 0 0

4000 amps

4 0 0


Section 14


Application Notes:1. Metric dimensions (cm) and weights (Kg) shown in parenthesis

adjacent to English measurements in inches and pounds.2. Includes 1.25" door projection beyond base depth. Allow a mini-

mum of 3" additional depth for projection of handle, light,switches, pushbuttons, etc.

3. All dimensions and weights are approximate and subject tochange without notice.

4. Special enclosures (NEMA 3R, 4, 12, etc.) dimensions and layout may differ. Consult the GE Zenith factory for details.

5. Normal and emergency may be ordered inverted on any switch.The load may be inverted 600-1200 amps. Consult the GE Zenithfactory for details.

6. Special lug arrangements may require different enclosure dimen-sions. For certified drawings, contact the GE Zenith factory.

7. Packing materials must be added to weights shown. Allow 15%additional weight for cartons, skids, crates, etc.

8. Add 4" in height for removable lifting lugs.9. Lug adapters for 3000-4000 amp limits may be staggered length

for ease of entrance. Consult the ge Zenith factory for details.10.Ventilation louvers on both sides and rear of enclosure. Louvers

must be clear for airflow with standard cable connections.11.A ZTS 40-150A, when ordered with the following options, will re-

quire a larger enclosure of 46" x 24" x 14" (HxWxD): A62(T), DigitalMeter, HT, HH, K, LDS, L11, N1, N2, OCVR-1SG, OCVR-1SS, P2,Q2M, Q3M, Q7M, R26(D).

12. For Delayed and Closed Transition dimensions and weights, referto GE Zenith Publication PB-5067 and PB-5069.

13.For Bypass/Isolation dimensions and weights, refer to GE ZenithPublication pb-5068.

14.A ZTS, when ordered with compression lugs suitable for use withcopper cables, will require a larger enclosure. For 40-225A, theenclosure is 46" x 24" x 14" (HxWxD). For 260-400A, the enclosureis 66" x 24" x 19.75". For 600A, the enclosure is 74" x 40" x 19.75".For certified drawings, please contact the GE Zenith factory.

Notes

* Line and load terminals are located in rear and arranged for bus bar connection. Terminal lugs are available as an accessory. Contact GE Zenith factory for more details.1. Special terminal lugs and neutral bars are available at additional cost. Contact factory and advise cable sizes and number of conductors per pole.2. Fully rated neutral provided on 3 phase, 4 wire system.3. Special lug arrangements may require different enclosure dimensions. For certified drawings, contact the GE Zenith factory.

C

A

B

Figure A

C

A

B

Figure B

C

A

B

Figure C

ZTS SeriesZTS Model, Dimensions and Weights

NEMA 1 Weight Reference Open ApplicationAmpere Rating Poles Height (A) Width (B) Depth (C) Figure Type NEMA 1 Notes

40, 80 2, 3 24 (61) 18 (46) 11 (28) A 21 (10) 57 (26)

4 24 (61) 18 (46) 11 (28) A 21 (10) 60 (27) 1 - 7, 11-14

100, 150 2, 3 24 (61) 18 (46) 11 (28) A 21 (10) 57 (26)

4 24 (61) 18 (46) 11 (28) A 21 (10) 60 (27) 1 - 7, 11-14

225 2, 3 46 (117) 24 (61) 14 (36) A 70 (32) 165 (75)

4 46 (117) 24 (61) 14 (36) A 75 (34) 170 (68) 1 - 7, 12-14

260, 400 2, 3 46 (117) 24 (61) 14 (36) A 70 (32) 165 (75)

4 46 (117) 24 (61) 14 (36) A 75 (34) 170 (68) 1 - 7, 12-14

600 2, 3 74 (188) 40 (102) 19.5 (50) B 165 (75) 380 (172)

4 74 (188) 40 (102) 19.5 (50) B 185 (84) 430 (195) 1 - 8, 12-14

800, 1000, 1200 2, 3 74 (188) 40 (102) 19.5 (50) B 190 (86) 455 (206)

4 74 (188) 40 (102) 19.5 (50) B 210 (95) 540 (245) 1 - 8, 12-13

1600, 2000 3 90 (229) 35.5 (90) 48 (122) C 345 (156) 1010 (458)

4 90 (229) 35.5 (90) 48 (122) C 450 (204) 1160 (526) 1 - 13

3000 3 90 (229) 35.5 (90) 48 (122) C 465 (211) 1130 (513)

4 90 (229) 35.5 (90) 48 (122) C 670 (304) 1395 (633) 1 - 13

4000 3 90 (229) 46.5 (118) 60 (152) C 770 (349) 1595 (723)

4 90 (229) 46.5 (118) 60 (152) C 1025 (465) 1850 (839) 1 - 13

AL-CU UL Listed Solderless Screw-Type Terminals for External Power Connections Normal, & Load Terminals Switch Size Amps Cables/Pole Wire Ranges

40-80 1 #8 to 3/0100, 150 1 #6 to 250 MCM225 1 #4 to 600 MCM260 1 #4 to 600 MCM400 1 #4 to 600 MCM600 2 #2 to 600 MCM800, 1000, 1200 4 #2 to 600 MCM1600, 2000,3000, 4000 *


Section 14



ZTS Series

ZTS Series Dimensional Specifications Model ZTS Transfer Switches

NEMA 1 Enclosure Weight

Ampere Rating Poles Height (A) Width (B) Depth (C) Ref. Fig. Open Type NEMA 1 App. Notes

40, 80, 100, 150,

2, 3 24 (61) 18 (46) 11 (28) A 21 (10) 57 (26) 1 – 7, 11 - 14 4 24 (61) 18 (46) 11 (28) A 21 (10) 60 (27) 1 – 7, 11 - 14

225, 260, 400 2, 3 46 (117) 24 (61) 14 (36) A 70 (32) 165 (75) 1 – 7, 12 - 14

4 46 (117) 24 (61) 14 (36) A 75 (34) 170 (68) 1 – 7, 12 - 14

600 2, 3 74 (188) 40 (102) 19.5 (50) B 165 (75) 380 (172) 1 – 8, 12 - 14

4 74 (188) 40 (102) 19.5 (50) B 185 (84) 430 (195) 1 – 8, 12 - 14

800, 1000, 1200 2, 3 74 (188) 40 (102) 19.5 (50) B 190 (86) 455 (206) 1 – 8, 12 - 13

4 74 (188) 40 (102) 19.5 (50) B 210 (95) 540 (245) 1 – 8, 12 - 13

1600, 2000 3 90 (229) 35.5 (90) 48 (122) C 345 (156) 1010 (458) 1 – 13

4 90 (229) 35.5 (90) 48 (122) C 450 (204) 1160 (526) 1 – 13

3000 3 90 (229) 35.5 (90) 48 (122) C 465 (211) 1130 (513) 1 – 13

4 90 (229) 35.5 (90) 48 (122) C 670 (304) 1395 (633) 1 – 13

4000 3 90 (229) 46.5 (118) 60 (152) C 770 (349) 1595 (723) 1 – 13

4 90 (229) 46.5 (118) 60 (152) C 1025 (465) 1850 (839) 1 – 13

Application Notes:1. Metric dimensions (cm) and weights (Kg) shown in parenthesis adjacent to English measurements in inches and pounds.2. Includes 1.25" door projection beyond base depth. Allow a minimum of 3" additional depth for projection of handle, light, switches, pushbuttons, etc.3. All dimensions and weights are approximate and subject to change without notice.4. Special enclosures (NEMA 3R, 4, 4X, 12, etc.) dimensions and layout may differ. Consult the GE Zenith factory for details.5. Normal and emergency may be ordered inverted on any switch. The load may be inverted 600-1200 amps. Consult the factory for details.6. Special lug arrangements may require different enclosure dimensions. For certified drawings, contact the GE Zenith factory.7. Packing materials must be added to weights shown. Allow 15% additional weight for cartons, skids, crates, etc.8. Add 4" in height for removable lifting lugs.9. Lug adapters for 3000-4000 amp limits may be staggered length for ease of entrance. Consult the GE Zenith factory for details.10. Ventilation louvers on both sides and rear of enclosure. Louvers must be clear for airflow with standard cable connections.11. A ZTS 40-150A, when ordered with the following options, will require a larger enclosure of 46”x 24”x 14” (HxWxD): A62(T), Digital Meter HT, HH, K, LDS, L11, N1, N2, OCVR-

1SG, OCVR-1SS, P2, Q2M, Q3M, Q7M, R26(D).12. For Delayed and Closed Transition dimensions and weights, refer to GE Zenith publication PB-5067 and PB-5069.13. For Bypass/Isolation dimensions and weights, refer to GE Zenith publication PB-5068.14. A ZTS, when ordered with compression lugs suitable for use with copper cables will require a larger enclosure. For 40-225A, the enclosure is 46” x 24” x 14” (H x W x D). For

260-400A, the enclosure is 66” x 24” x 19.75”. For 600A, the enclosure is 74” x 40” x 19.75”. For certified drawings, please contact the GE Zenith factory.

Model ZTSD Transfer Switches



40, 80, 100, 150, 225, 260, 400 2, 3 46 (117) 24 (61) 14 (36) A 80 (36) 200 (91) 1 - 7, 11 - 13

4 46 (117) 24 (61) 14 (36) A 85 (39) 205 (93) 1 – 7, 11 - 13

600 2, 3 74 (188) 40 (102) 19.5 (50) B 185 (84) 400 (181) 1 – 8, 12 - 13

4 74 (188) 40 (102) 19.5 (50) B 205 (93) 450 (204) 1 – 8, 12 - 13

800, 1000, 1200 2, 3 74 (188) 40 (102) 19.5 (50) B 210 (95) 475 (215) 1 – 8, 12 - 13

4 74 (188) 40 (102) 19.5 (50) B 230 (104) 560 (254) 1 – 8, 12 - 13

1600, 2000 3 90 (229) 35.5 (90) 48 (122) C 365 (166) 1030 (467) 1 – 8, 10, 12 - 13

4 90 (229) 35.5 (90) 48 (122) C 470 (213) 1190 (540) 1 – 8, 10, 12 - 13

3000 3 90 (229) 35.5 (90) 48 (122) C 485 (220) 1150 (522) 1 – 10, 12 - 13

4 90 (229) 35.5 (90) 48 (122) C 690 (313) 1415 (642) 1 – 10, 12 - 13

4000 3 90 (229) 46.5 (118) 60 (152) C 802 (372) 1635 (742) 1 – 10, 12 - 13

4 90 (229) 46.5 (118) 60 (152) C 1045 (474) 1870 (848) 1 – 10, 12 - 13

Application Notes:1 - 9, 11, 13. Same as above10. Ventilation louvers on both sides and rear of enclosure. One set of louvers must be clear for airflow with standard cable connectors.

Reference Figures

Figure A Figure B Figure C


Section 14


Reference Figures

ZTS SeriesZTS Series Dimensional Specifications

B

A

C

Figure D Figure E Figure F

B

A

C14"B

A

C

SeeNote9

Vent

Vent

Model ZBTS and ZBTSD Transfer/Bypass-Isolation Switches

NEMA 1 Enclosure Weight Ampere Rating Poles Height (A) Width (B) Depth (C) Ref. Fig. Open Type NEMA 1 App. Notes

100, 150, 225, 260, 400

2, 3 83 (211) 30 (76) 28.5 (73) D 310 (141) 770 (350) 1 – 9 4 83 (211) 30 (76) 28.5 (73) D 380 (173) 840 (381) 1 – 9

600 3 90 (229) 36 (91) 28.25 (72) E 660 (299) 1220 (553) 1 – 9

4 90 (229) 40 (102) 28.25 (72) E 770 (349) 1365 (619) 1 – 9

800, 1000, 1200 3 90 (229) 40 (102) 28.25 (72) E 765 (347) 1355 (615) 1 – 9

4 90 (229) 46 (117) 28.25 (72) E 910 (413) 1570 (712) 1 – 9

1600, 2000 3 90 (229) 40 (102) 61.25 (156) F 2900 (1315) 3100 (1406) 1 – 7

4 90 (229) 50 (127) 61.25 (156) F 3800 (1724) 4000 (1814) 1 – 7, 10

3000 3 90 (229) 40 (102) 73.25 (186) F 3700 (1678) 3900 (1769) 1 – 7, 10

4 90 (229) 50 (127) 73.25 (186) F 4800 (2177) 5000 (2268) 10 – 12

4000 3 90 (229) 47.5 (121) 81 (206) F 4310 (1955) 4660 (2113) 1 – 7, 10 – 11

4 90 (229) 54 (137) 81 (206) F 5510 (2499) 5860 (2658) 1 – 7, 10 – 11

Model ZBTSCT Closed Transition Transfer/Bypass-Isolation Switches



100, 150, 225, 260, 400, 600 3 90 (229) 36 (91) 28.25 (72) E 730 (331) 1280 (581) 1 – 8

4 90 (229) 40 (102) 28.25 (72) E 840 (381) 1385 (628) 1 – 8

800, 1000, 1200 3 90 (229) 40 (102) 28.25 (72) E 835 (379) 1435 (651) 1 – 9

4 90 (229) 46 (117) 28.25 (72) E 980 (444) 1640 (744) 1 – 9

1600, 2000 3 90 (229) 40 (102) 61.25 (156) F 2970 (1347) 3170 (1438) 1 – 7, 10

4 90 (229) 50 (127) 61.25 (156) F 3870 (1755) 4070 (1846) 1 – 7, 10

3000 3 90 (229) 40 (102) 73.25 (186) F 3770 (1710) 3970 (1801) 1 – 7, 10– 12

4 90 (229) 50 (127) 73.25 (186) F 4870 (2209) 5070 (2300) 1 - 7, 10 – 12

4000 3 90 (229) 47.5 (121) 81 (206) F 4380 (1986) 4730 (2145) 1 – 7, 10 – 12

4 90 (229) 54 (137) 81 (206) F 5580 (2531) 5930 (2689) 1 – 7, 10 – 12

Application Notes:1. Metric dimensions (cm) and weights (Kg) shown in parenthesis adjacent to English measurements in inches and pounds.2. Includes 1.25" door projection beyond base depth. Allow a minimum of 3" additional depth for projection of handle, light, switches, pushbuttons, etc.3. All dimensions and weights are approximate and subject to change without notice.4. Special enclosures (NEMA 3R, 4, 4X, 12, etc.) dimensions and layout may differ. Consult the GE Zenith factory for details.5. Bypass Model product can not be ordered with inverted style.6. Special lug arrangements may require different enclosure dimensions. For certified drawings, contact the GE Zenith factory.7. Packing materials must be added to weights shown. Allow 15% additional weight for cartons, skids, crates, etc.8. Add 4" in height for removable lifting lugs.9. ZBTS(D) 600-1200A and ZBTSCT 100-1200A standard configuration is top entry. 14” rear adapter bay required for bottom entry. Consult GE Zenith

factory for details.10. Bypass switch weights for 1600 - 4000 amp units vary up to 10% based on connections variations. Weights shown are for estimation only.11. 3000 amp depth dimension shown is standard. Depending on your cable/conduit requirements you may desire a deeper enclosure. Consult the

GE Zenith factory for further details.12. Lug adapters for 3000-4000 amp limits may be staggered length for ease of entrance. Consult the GE Zenith factory for details.


Section 14



Reference Figures

ZTS Series

ZTS Series Dimensional Specifications

Figure A Figure B

Model ZTSCT Transfer Switches

NEMA 1 Enclosure Weight Ampere Rating Poles Height (A) Width (B) Depth (C) Ref. Fig. Open Type NEMA 1 App. Notes

100, 150, 225, 260, 400, 600 2, 3 74 (188) 40 (102) 19.5 (50) A 185 (84) 400 (181) 1 – 8

4 74 (188) 40 (102 19.5 (50) A 205 (93) 450 (204) 1 – 8

800, 1000, 1200 2, 3 74 (188) 40 (102) 19.5 (50) A 210 (95) 475 (215) 1 – 8

4 74 (188) 40 (102) 19.5 (50) A 230 (104) 560 (254) 1 – 8

1600, 2000 3 90 (229) 35.5 (90) 48 (122) B 365 (166) 1030 (467) 1 – 8

4 90 (229) 35.5 (90) 48 (122) B 470 (204) 1190 (540) 1 – 8

3000 3 90 (229) 35.5 (90) 48 (122) B 485 (220) 1150 (522) 1 – 10

4 90 (229) 35.5 (90) 48 (122) B 690 (313) 1415 (642) 1 – 10

4000 3 90 (229) 46.5 (118) 60 (152) B 820 (372) 1635 (742) 1 – 10

4 90 (229) 46.5 (118) 60 (152) B 1045 (474) 1870 (848) 1 – 10

Application Notes:1. Metric dimensions (cm) and weights (Kg) shown in parenthesis adjacent to English measurements in inches and pounds.2. Includes 1.25" door projection beyond base depth. Allow a minimum of 3" additional depth for projection of handle, light, switches, pushbuttons, etc.3. All dimensions and weights are approximate and subject to change without notice.4. Special enclosures (NEMA 3R, 4, 4X, 12, etc.) dimensions and layout may differ. Consult the GE Zenith factory for details.5. Normal and emergency may be ordered inverted on any switch. The load may be inverted 600–1200 amps. Consult the factory for details.6. Special lug arrangements may require different enclosure dimensions. For certified drawings, contact the GE Zenith factory.7. Packing materials must be added to weights shown. Allow 15% additional weight for cartons, skids, crates, etc.8. Add 4" in height for removable lifting lugs.9. 4000 amp depth dimension shown is standard. Depending on your cable/conduit requirements you may desire a deeper enclosure. Consult the

GE Zenith factory for further details.10. Lug adapters for 3000-4000 amp limits may be staggered length for ease of entrance. Consult the GE Zenith factory for details.


Section 14


Model ZTSMV

Model ZTSMV Medium Voltage Transfer SwitchesThe Standard of Quality in Design and Manufacturing

IntroductionZTS Series Automatic Transfer Switches have been the preferredstandard for quality and reliability in the electrical industry. TheZTSMV Model medium voltage automatic transfer switches pro-vides that same quality for installations from 5kV to 15kV.

The ZTSMV Model is designed for use in the most critical applica-tions: hospitals, military sites, airports, communications facilities,and computer installations. ZTSMV Model switches fit the need fordependable continuity of power where emergency or standby ap-plications exist.

Backed by over 75 years of experience in manufacturing auto-matic transfer switches, as well as extensive experience in the de-sign and development of paralleling switchgear systems, the GEZTSMV Model provides the reliable answer to critical medium volt-age switching applications. Like all GE switches, the ZTSMV Modelis supported by a nationwide network of field service facilities.

ConstructionThe switching elements consist of two vacuum circuit breakers in-terlocked to ensure that only one set of contacts can be closed atany one time. The control module for transferring operations ofthe power unit is the same reliable microprocessor control systemthat GE has designed, built and used on our low voltage auto-matic transfer switches. The control module is physically isolatedfrom the power portion by an insulating barrier. The completedunit is enclosed in a NEMA1 cabinet (NEMA 3R optional) and isboth front and rear accessible.

Model ZTSMV Medium Voltage Transfer Switches Standard FeaturesThe ZTSMV Features:—State-of-the-art vacuum breaker design—Electrically interlocked for secure operation—Over-current protection for the load —A drawout P.T. trunnion design on utility to facilitate removal of control fuses from rear of cabinet

—The control module completely isolated from power section—Standard indication of source availability—MX250 control with MSPES Options provided for use with generator as an alternate source

—A control circuit disconnect switch—Capable of supporting modules to allow remote communicationto annunciators, modems and SCADA systems

—Drawout vacuum breaker design—Dual electrical interlocks—Compliance with ANSI/IEEE spec C37 and NEMA spec SG5—A drawout P.T. trunnion design on utility and generator side tofacilitate removal of control fuses while the system is operating

—The control module completely isolated from power section—Standard indication of source availability—One year warranty

ZTSMV


Section 14



Model ZTSMV

ZTSMV Series Medium Voltage Transfer SwitchesElectrical RatingsThe ZTS-MV Series is available in a wide range of voltage, current and MVA classes. It iscritical to evaluate the project requirements prior to specifying the equipment. Verify:

—Normal and emergency system voltages—Current rating requirements—MVA class—Short circuit rating—Protective relay requirements (if any)

ZTSMV

NOTE: Additional ratings are available. Consult the factory for details.


*Other ratings are available. Contact the factory for details.

Block AModel Designation

Block E System Voltage

Block FRated Current

Block GMVA Rating

ZTSMV05 - 5kV ClassZTSMV15 - 15 kV Class

Block BTransition Type

S - Standard TransitionD - Delayed TransitionT - Closed Transition

Block H Current Transformer Ratio on Utility

Block ICurrent Transformer Ratio on Emergency

Block CNEMA

C - NEMA 1S - NEMA 3R

Block DNumber of Poles

3

V0 = 2400V, 3 phase, 3 wireV1 = 2400V, 3 phase, 4 wireV2 = 4160V, 3 phase, 3 wireV3 = 4160V, 3 phase, 4 wireV4 = 6600V, 3 phase, 3 wireV5 = 6600V, 3 phase, 4 wireV6 = 7200V, 3 phase, 3 wireV7 = 7200V, 3 phase, 4 wire

W0 = 12.47kV, 3 phase, 3 wireW1 = 12.47kV, 3 phase, 4 wireV8 = 13.8kV, 3 phase, 3 wireV9 = 13.8kV, 3 phase, 4 wire

VX = Special Voltage

03 1,200A04 2,000A05 3,000A

01 100/5 09 800/502 150/5 10 1000/503 200/5 11 1200/504 250/5 12 1500/505 300/5 13 1600/506 400/5 14 2000/507 500/5 15 2500/508 600/5 16 3000/5

02 25003 5001

05 10001

Use same chart as Block H

1115kV Class (7.2-15 kV only)

Rated Voltage 5kV 15kV 15kV

MVA Class 250 500 1,000

System Voltage 2.4 - 4.16 kV 7.2 - 13.8 kV 7.2 - 13.8 kV

Rated Current 1,200 A 1,200 - 3,000 A 1,200 - 3,000 A

Short Circuit Rating 29 kA @ 4.16 kV 20 kA @ 13.8 kV 40 kA @ 13.8 kV

33 kA @ 7.2 kV

Z T S M VBlock A Block B Block C Block D Block E Block F Block G Block H Block I


Section 14


Model ZTSMV

Standard AccessoriesMSPES Option GroupA1 Auxiliary Contact – Energized on Normal (SPDT)

A1E Auxiliary Contact – Energized on Emergency (SPDT)

A3 Auxiliary Contact – Closed in Emergency Position

A4 Auxiliary Contact – Closed in Normal Position

A6 Timed Load Disconnect Prior to Transfer (Adjustable)

C/D Load/No-load exerciser clock (specify 7, 14 or 365 day)

E Engine Start ContactJ2E Over/Under Frequency – Normal Source

J2N Over/Under Frequency – Emergency Source

L1 Pilot Light – Transfer Switch in Normal Position

L2 Pilot Light – Transfer Switch in Emergency Position

L3 Pilot Light – Emergency Power Available

L4 Pilot Light – Normal Power Available

P1 Time Delay – Engine Start (Adjustable)

Q2 Peak Shave/Remote Load Test: Input for peak shave or remote load test; includes automatic return to normal if emergency source fails and normal is present; 120 VAC or 24 VDC

Q3 Inhibit Transfer: Input circuit to inhibit transfer to emergency; 120 VAC or 24 VDC

R1 Over Voltage – Normal Source

R8 Over Voltage – Emergency Source

R16 Phase Sequence SensingR17 Under-voltage Sensing: Emergency (3 phase)

R50 In-phase monitor (if delayed transition units are not specified)

T Time Delay – Retransfer to Normal (Adjustable)

U Time Delay – Engine Cooldown (Adjustable)

W Time Delay – Transfer to Emergency (Adjustable)

YEN Time Delay Bypass Switch (T & W Timers)

Optional AccessoriesProtective RelaysUPR1-A Utility Source 1

Protective Relay (GE SR750)

UPR1-B Utility Source 1

Protective Relay (GE F60)

UPR2-A Utility Source 2

2 Protective Relays (GE SR750)

UPR2-B Utility Source 2

2 Protective Relays (GE F60)

GRP2-A Generator Source 3

2 Protective Relays (GE SR489)

IPR1-C Source 1 Industrial Grade

Protective Relay (MX3500)

IPR2-C Source 2 Industrial Grade

Protective Relay (MX3500)

Other Accessories Available Include:—Multi-function power measurement metering including amps,volts, frequency, KW, KVA, KVAR, etc.

—Soft load switches are available. Consult the factory.


Section 14



Model ZTE

ZTE SeriesLow-Voltage, Open Transition, Automatic and Manual TransferSwitches—Ideal for mixed (inductive and resistive) mission critical loads—Contact transfer speed less than 100 milliseconds—Double throw, interlocked operation—Ratings 40 to 4000 amperes

Ratings & Construction—Ratings – Voltage, Ampere and Pole configuration per Order Code

—Certifications – UL 1008, CSA C22.2—Certifications – Third-party Seismic Certification to IBC 2009,3.2g @ Ip = 1.5 (operation during event)

—Electrical Operator – Momentarily energized, high-speed solenoid mechanism

—Mechanism – Mechanically-held with mechanical interlock to inhibit connection of both sources to the load

—Contacts – GE design and manufactured, silver tungsten alloywith separate arcing contacts on 600A and above ratings forhigh withstand and close-on capability

—Neutral Pole (4 pole only) – Identical construction to phasepoles with fully rated main and arcing contacts. Operation viasame mechanism as phase poles to prevent sustained connec-tion of source neutrals in separately derived systems, as last-break/first-make transfer.

Controller—Construction – Dual-processor based, with dedicated processorfor high-speed Serial or Ethernet communications

—Source Sensing – Direct 120-690V sensing and software config-uration of rated voltage and frequency without the need for potential transformers, step-down transformers or DIP switches

—Control Wiring – All customer connections at one location. Allsignals in/out relay-isolated via DIN-mounted relay/terminalblocks. All control wiring via factory-installed wiring harnesses

Enclosure—Type – per Order Code

Display, Sensing & Time Delays—Display – ¼ VGA color graphical with embedded ‘HELP’ menus—Annunciation – High intensity LED for Source Availability (2),Source Connected (2), Transfer Inhibit (not in Auto)

—Source Fail/Restore – Independently adjustable pickup &dropout of 3-phase U/O voltage, U/O Freq, Volts Balance plusPhase Rotation

—Time Delays – Gen start, Source 2 stabilize, Source 2 failoverride, Retransfer to Source 1, Gen cool down, Independentsettings for Fast Test, Time Delay for Generator Voltage Sag

—Remote Access – All parameters locally (front USB port) orremotely (serial or Ethernet) Adjustable

Control Group Options (see order code)—Group A: All standard features, Field re-programmable I/O (4 in-puts, 4 outputs), Control Switches (Test with Load, Test no load,Fast Test, Alarm Reset, Auto/Man Re-transfer Source 1,Auto/Man Transfer both sources, Preferred Source select, Commit/No Commit Transfer to Gen, Time Delay Bypass

—Group B: All features from “A” plus: 10 User-configurable Analog& 10 Digital Alarms, 20-channel data logger, 10-channel wave-form capture, Auto Load Shed (with voltage, frequency, and kW triggers)

—Group C: All features from “B” plus: 4 additional field program-mable inputs (total 8 inputs, 8 outputs)

—Group D: All features from “C” plus: 4 additional field program-mable inputs (total 12 inputs, 12 outputs) & GE Flexlogic™ user-configurable control logic

—Group M: Manual ATS configuration

Additional Standard Features—Engine Exerciser – Configurable Periodic Exerciser (7 EventDaily, Weekly, 14 or 28 day) or Clock Exerciser Type (21 Event,365 day Programmable)

—System Status Screen – Active state of switch, display of all timedelays and alarm conditions

—Event Recorder – 256 Event, 1ms accuracy, clock sync via Network Time Protocol (NTP)

—Outage & Test Report Screen – Date/time stamping of: outage ortest event, start signal sent, Gen start time, connection to Gen,Max Gen Volts & Freq dip, return of utility, re-transfer to normal

—External Power Supply – Standard 120VAC input for controllerpower and communication and 24 VDC input for remote controland annunciation when both sources de-energized

—Flexible Feature Assignment – Field reassignable I/O for any/allcontrol features

—In-Phase Monitor – For phase matching prior to Live-Live transfers of load

Optional Features (see order code)—Serial Communications –High speed, up to 115k Baud Modbus RTU

—Ethernet Communications – Fast Ethernet, (10/100 Mbit), Modbus TCP/IP

—Power Quality Metering – True RMS metering, including THD%(up to 8th order)

—Load Shed – Ability to transfer to de-energized normal source orcenter position in event of generator overload

—Integral Surge Protective Device (SPD) – Load-connectedmedium or high exposure type

—Integral Battery Charger – 3 or 10A, 12 or 24VDC type—Lugs – Compression lugs in lieu of standard mechanical lugs on100A-1200A switches

—Lugs – Mechanical or Compression lugs in lieu of standard rear-bus connection on 1600-4000A switches

Section 14


Automatic Transfer SwitchesCritical Power ProductsModel ZTE

Order Code – Abbreviated Product Configuration(see full Product Brochure, Publication DEA-405, for full configuration)

AmperageA = 40B = 80C = 100D = 150F = 225G = 260I = 400J = 600K = 800L = 1000M = 1200N = 1600O = 2000Q = 3000R = 4000

# of Poles2 = 2 Pole3 = 3 Pole4 = 4 Pole

ApplicationS = Util-GenU = Util-UtilG = Gen-Gen

Controller Language1 = English

NEMA EnclosureX = None (Open)A = NEMA 1B = NEMA 1AC = NEMA 3RD = NEMA 3R w/HtrE = NEMA 4F = NEMA 12G = NEMA 4X

ControlGroup OptionsA = Group “A”B = Group “B”C = Group “C”D = Group “D”M = Group “M”

Voltage Code70 = 277/480V, 3PH, 4W, 60Hz20 = 120/240V, 1PH, 3W, 60Hz40 = 120/208V, 3PH, 4W, 60Hz92 = 220/380V, 3PH, 4W, 50Hz50 = 480V, 3PH, 3W, 60Hz38 = 120/208/240V, 3PH, 4W, High-Leg Delta, 60Hz30 = 240V, 3PH, 3W, 60Hz31 = 208V, 3PH, 3W, 60Hz61 = 347/600V, 3PH, 4W, 60Hz

(see full product brochurefor other options

Lug OptionsX = Std lugs or Rear bus(per chart below)

(see full product brochurefor lug option details)

Ground BusX = None1 = Ground bus-Mech Lugs (Qty. 3) #14-1/0-GB12 = Ground bus-Mech Lugs (Qty. 6) #8-1/0 -GB2

(see full productbrochure forother options)

SPD(Load-Side Connected)100A - 1200A RatingX = NoneA = 65kAB = 80kAC = 100kA1600A - 4000A RatingX = NoneD = 100kAE = 150kAF = 200kAG = 300kA


CommunicationsX = NoneS = CCM S-Modbus RTU (Serial) communication moduleE = CCM E Modbus TCP/IP (Ethernet) communication moduleE = plus Modbus RTU (Serial) communication module

BatteryChargerX = None

1 = BatteryCharger-12Volt-3 Amp



Z10 X

Metering & AccessoriesX = NoneA = Load ShedD = PQ Metering


ZTE Model, Dimensions and WeightsNEMA 1 Weight Application

Ampere Rating Poles Height (A) Width (B) Depth (C) Ref. Figure Open Type NEMA 1 Notes

*100, 150, 225 366 (168) 24 (61) 20 (50) B

125 (57) 220 (100)1-7

260, 400 4 146 (66) 241 (109)40, 80, 100 2, 3

46 (117) 24 (61) 14 (36) A14 (7) 120 (55)

1-6150, 225 4 20 (9) 126 (57)

260, 4002, 3

46 (117) 24 (61) 14 (36) A59 (27) 168 (76)

1-64 70 (32) 180 (82)

6002, 3

74 (188) 40 (102) 19.5 (50) B150 (68) 410 (186)

1-74 180 (82) 440 (200)

800, 1000, 12002, 3

74 (188) 40 (102) 19.5 (50) B190 (86) 460 (209)

1-74 230 (104) 490 (222)

1600, 20003

90 (229) 35.5 (90) 48 (122) C345 (156) 1010 (458)

1-94 450 (204) 1160 (526)

30003

90 (229) 35.5 (90) 48 (122) C465 (211) 1130 (513)

194 670 (304) 1396 (633)

40003

90 (229) 46.5 (118) 60 (152) C770 (349) 1595 (723)

1-94 1025 (465) 1850 (839)

* For ZTECT models only

AL-CU UL Listed Mechanical LugsNormal, Emergency & Load Terminals

Switch Size Amps Cables/Pole Wire Ranges

ZTE

40, 80 1 #8 to 3/0100, 150 1 #6 to 250 MCM

225 1 #4 to 600 MCM260 1 #4 to 600 MCM400 1 #4 to 600 MCM600 2 #2 to 600 MCM

800, 1000, 1200 4 #2 to 600 MCM1600, 2000, 3000, 4000 * *

Notes:* Line and load terminals are located in rear and

arranged for bus bar connection. Terminal lugs areavailable as an accessory. See full product brochure(DEA-405) for option details.

1. Fully rated neutral provided on 3 phase, 4 wire system

Application Notes1. Metric dimensions (cm) and weights (Kg) shown in parenthesis

adjacent to English measurements in inches and pounds.2. Includes 1.25" door projection beyond base depth. Allow a minimum

of 3" additional depth for projection of handle, light, switches,pushbuttons, etc.

3. All dimensions and weights are subject to change without notice.4. NEMA 3R, 4, 4X and 12 enclosure dimensions may differ than NEMA

1 shown above. Consult the factory for details.5. Special lug arrangements may require different enclosure

dimensions. See full product brochure (DEA-405) for details.6. Packing materials must be added to weights shown. Allow 15%

additional weight for cartons, skids, crates, etc.7. Add 4" in height for removable lifting lugs.8. Lug adapters for 3000-4000A limits may be staggered length for

ease of entrance. Consult the factory for details.9. 1600-4000A switches have ventilation louvers on both sides and

rear of enclosure. Louvers must be clear for airflow with standardcable connections.


Section 14



Model ZTED

ZTED SeriesLow-Voltage, Delayed Transition, Automatic and Manual Transfer Switches—Ideal for inductive (motors/transformers, UPS) mission critical loads

—Adjustable, time delay in centered “off” position—Mechanically interlocked center-off position for load decay—Ratings 40 to 4000 amperes






—Neutral Pole (4 pole only) – Identical construction to phasepoles with fully rated main and arcing contacts. Operation viasame mechanism as phase poles to prevent sustained connec-tion of source neutrals in separately derived systems, as last-break/ first-make transfer.



—Control Wiring – All customer connections at one location. Allsignals in/out relay-isolated via DIN-mounted relay/terminalblocks. All control wiring via factory-installed wiring harnesses.




—Time Delays – Gen start, Source 2 stabilize, S1 g S2 transfer center-off delay, Source 2 fail override, Retransfer to Source 1,S2 g S1 transfer center-off delay, Gen cool down, Independentsettings for Fast Test, Time Delay for Generator Voltage Sag

—Remote Access – All parameters locally (front USB port) or remotely (serial or Ethernet) Adjustable

Control Group Options (see order code)—Group A: All standard features, Field re-programmable I/O (4 inputs, 4 outputs), Control Switches (Test with Load, Test noload, Fast Test, Alarm Reset, Auto/Man Re-transfer Source 1,Auto/Man Transfer both sources, Preferred Source select, Commit/No Commit Transfer to Gen, Time Delay Bypass


—Group C: All features from “B” plus: 4 additional programmableinputs (total 8 inputs, 8 outputs)

—Group D: All features from “C” plus: 4 additional field program-mable inputs (total 12 inputs, 12 outputs) & GE Flexlogic™

user-configurable control logic—Group M: Manual ATS configuration




—Outage & Test Report Screen – Date/time stamping of: outageor test event, start signal sent, Gen start time, connection toGen, Max Gen Volts & Freq dip, return of utility, re-transfer to normal



—Programmable Center-Off Position – For transition of motorand regenerative loads







—Lugs – Mechanical or Compression lugs in lieu of standard rear-bus


Section 14


Model ZTED

AmperageA = 40B = 80C = 100D = 150F = 225G = 260I = 400J = 600K = 800L = 1000M = 1200N = 1600O = 2000Q = 3000R = 4000



















Z1D X




ZTED Model, Dimensions and WeightsNEMA 1 Weight Application


40, 80, 100 2, 3 80 (36) 120 (59)150, 225 4 46 24 14

A85 (39) 126 (57)

1-6260, 400

2, 3 (1168) (610) (356) 80 (36) 168 (76)4 85 (39) 180 (82)

6002, 3 185 (84) 410 (186)4 74 40 19.8 205 (93) 440 (200)

8002, 3 (1880) (1016) (502)

B210 (95) 460 (209)

1-74 230 (104) 490 (223)

1000, 12002, 3 74 40 19.5 210 (95) 460 (209)4 (1880) (1016) (495) 230 (104) 490 (223)

1600, 20003 365 (166) 1010 (458)

1-7, 94 90 35.5 47.9 470 (204) 1160 (526)

30003 (2286) (902) (1216)

C485 (220) 1130 (513)

4 690 (313) 1396 (633)1-9

40003 90 46.5 60 820 (372) 1595 (723)4 (2286) (1180) (1524) 1045 (474) 1850 (839)



ZTED

40, 80 1 #8 to 3/0100, 150, 225 1 #4 to 600 MCM

260 1 #4 to 600 MCM400 1 #4 to 600 MCM600 2 #2 to 600 MCM

800, 1000, 1200 4 #2 to 600 MCM1600, 2000, 3000, 4000 * *




Application Notes1. Metric dimensions (cm) and weights (Kg) shown in parenthesis adjacent to English

measurements in inches and pounds.2. Includes 1.25" door projection beyond base depth. Allow a minimum of 3"

additional depth for projection of handle, light, switches, pushbuttons, etc.3. All dimensions and weights are subject to change without notice.4. NEMA 3R, 4, 4X and 12 enclosure dimensions may differ than NEMA 1 shown

above. Consult the factory for details.5. Special lug arrangements may require different enclosure dimensions. See full

product brochure (DEA-405) for details.6. Packing materials must be added to weights shown. Allow 15% additional weight

for cartons, skids, crates, etc.7. Add 4" in height for removable lifting lugs.8. Lug adapters for 3000-4000A limits may be staggered length for ease of entrance.

Consult the factory for details.9. 1600-4000A switches have ventilation louvers on both sides and rear of enclosure.

Louvers must be clear for airflow with standard cable connections.

UL 1008 Withstand and Closing Ratings

Please refer to GE Publication TB-1102


Section 14



Model ZTECT

ZTECT SeriesLow-Voltage, Closed Transition, Automatic and Manual Transfer Switches—Ideal for mission critical loads (computer servers, HIDemergency lighting, data acquisition equipment)

—Two source parallel time (“bumpless transfer”) of less than 100 milliseconds

—Integrated backup protection to prevent extended parallel conditions

—Ratings 100 to 4000 amperes



—Electrical Operator – Momentarily energized, high-speedsolenoid mechanism

—Mechanism – Mechanically-held with highspeed transfermechanism for make-beforebreak closed transition transfers


—Neutral Pole (4 pole only) – Identical construction to phasepoles with fully rated main and arcing contacts. Operation viasame mechanism as phase poles to prevent sustainedconnection of source neutrals in separately derived systems, aslast-break/ first-make transfer.


—Source Sensing – Direct 120-690V sensing and softwareconfiguration of rated voltage and frequency without the need for potential transformers, step-down transformers or DIP switches







Control Group Options (see order code)—Group A: All standard features, Field re-programmable I/O (4 inputs, 4 outputs), Control Switches (Test with Load, Test noload, Fast Test, Alarm Reset, Auto/Man Re-transfer Source 1,Auto/Man Transfer both sources, Preferred Source select,Commit/No Commit Transfer to Gen, Time Delay Bypass

—Group B: All features from “A” plus: 10 User-configurable Analog& 10 Digital Alarms, 20-channel data logger, 10-channelwaveform capture, Auto Load Shed (with voltage, frequency,and kW triggers)

—Group C: All features from “B” plus: 4 additional fieldprogrammable inputs (total 8 inputs, 8 outputs)

—Group D: All features from “C” plus: 4 additional fieldprogrammable inputs (total 12 inputs, 12 outputs) & GE Flexlogic™



—System Status Screen – Active state of switch, display of alltime delays and alarm conditions

—Event Recorder – 256 Event, 1ms accuracy, clock sync viaNetwork Time Protocol (NTP)

—Outage & Test Report Screen – Date/time stamping of: outageor test event, start signal sent, Gen start time, connection to Gen,Max Gen Volts & Freq dip, return of utility, re-transfer to normal



—Fail to Sync and Extended Parallel Protection – Hardwired,independent controller


—Ethernet Communications – Fast Ethernet, (10/100 Mbit),Modbus TCP/IP


—Load Shed – Ability to transfer to de-energized normal sourceor center position in event of generator overload





Section 14


Model ZTECT


AmperageC = 100D = 150F = 225G = 260I = 400J = 600K = 800L = 1000M = 1200N = 1600O = 2000Q = 3000R = 4000






Voltage Code70 = 277/480V, 3PH, 4W, 60Hz20 = 120/240V, 1PH, 3W, 60Hz40 = 120/208V, 3PH, 4W, 60Hz92 = 220/380V, 3PH, 4W, 50Hz50 = 480V, 3PH, 3W, 60Hz38 = 120/208/240V, 3PH, 4W, High-Leg Delta, 60Hz30 = 240V, 3PH, 3W, 60Hz31 = 208V, 3PH, 3W, 60Hz













Z1C X



ZTECT Model, Dimensions and WeightsNEMA 1 Weight Application


100, 150, 225 366 (168) 24 (61) 20 (50) A

125 (57) 220 (100)260, 400 4 146 (66) 241 (109)

120 (59)

2, 3 185 (84)126 (57)

60074 40 19.8 168 (76)

(1880) (1016) (502)A

205 (93)1-7

4180 (82)

800, 1000 2, 3 210 (95) 460 (209)1200 4 230 (104) 490 (223)

1600, 20003 365 (166) 1010 (458)4 90 35.5 47.9 470 (204) 1160 (526)

30003 (2286) (902) (1216)

B485 (220) 1130 (513)

4 690 (313) 1396 (633)1-9

40003 90 46.5 60 820 (372) 1595 (723)4 (2286) (1180) (1524) 1045 (474) 1850 (839)



ZTECT

100, 150 1 #4 to 600 MCM225 1 #4 to 600 MCM260 1 #4 to 600 MCM400 1 #4 to 600 MCM600 2 #2 to 600 MCM

800, 1000, 1200 4 #2 to 600 MCM1600, 2000, 3000, 4000 * *




Application Notes1. Metric dimensions (cm) and weights (Kg) shown in parenthesis adjacent to English

measurements in inches and pounds.2. Includes 1.25" door projection beyond base depth. Allow a minimum of 3" addi-

tional depth for projection of handle, light, switches, pushbuttons, etc.3. All dimensions and weights are subject to change without notice.4. NEMA 3R, 4, 4X and 12 enclosure dimensions may differ than NEMA 1 shown

above. Consult the factory for details.5. Special lug arrangements may require different enclosure dimensions. See full

product brochure (DEA-405) for details.6. Packing materials must be added to weights shown. Allow 15% additional weight

for cartons, skids, crates, etc.7. Add 4" in height for removable lifting lugs.8. 3000-4000A depth dimension shown is standard. Depending on your cable/con-

duit requirements, you may desire a deeper enclosure. Consult the factory for further details.

9. 1600-4000A switches have ventilation louvers on both sides and rear of enclosure.Louvers must be clear for airflow with standard cable connections.




Section 14



Model ZBTE

ZBTE SeriesLow-Voltage, Bypass/Isolation Open Transition, Automatic andManual Transfer Switches—Ideal for mixed (inductive and resistive) mission critical loads—Contact transfer speed less than 100 milliseconds—Bypass/Isolation for ease of ATS maintenance/testing withoutload loss of power



—Certifications – UL 1008, CSA C22.2—Certifications – Third-party Seismic Certification to IBC 2009, 3.2g @ Ip = 1.5 (operation during event)

—Electrical Operator – Momentarily energized, high-speedsolenoid mechanism

—Mechanism – Mechanically-held with mechanical interlock toinhibit connection of both sources to the load


—Neutral Pole (4 pole only) – Identical construction to phasepoles with fully rated main and arcing contacts. Operation viasame mechanism as phase poles to prevent sustainedconnection of source neutrals in separately derived systems, aslast-break/first-make transfer.


—Source Sensing – Direct 120-690V sensing and softwareconfiguration of rated voltage and frequency without the needfor potential transformers, step-down transformers or DIP switches







Control Group Options (see order code)—Group A: All standard features, Field re-programmable I/O (4inputs, 4 outputs), Control Switches (Test with Load, Test noload, Fast Test, Alarm Reset, Auto/Man Re-transfer Source 1,Auto/Man Transfer both sources, Preferred Source select,Commit/No Commit Transfer to Gen, Time Delay Bypass

—Group B: All features from “A” plus: 10 User-configurable Analog& 10 Digital Alarms, 20-channel data logger, 10-channelwaveform capture, Auto Load Shed (with voltage, frequency,and kW triggers)

—Group C: All features from “B” plus: 4 additional fieldprogrammable inputs (total 8 inputs, 8 outputs)









—In-Phase Monitor – For phase matching prior to Live-Live transfers of load









Section 14


Model ZBTE


AmperageC = 100D = 150F = 225G = 260I = 400J = 600K = 800L = 1000M = 1200N = 1600O = 2000P = 2600Q = 3000R = 4000



ControllerLanguage1 = English















Z O X



Product TypeZ2*** = Bypass/Isolation Vertical ConstructionZ3** = Bypass/IsolationHorizontal Construction

* 1600-3000 Amperage Excluded

** Applicable to 1600-3000 Amperage

OperationO = OpenTransition

NEMA EnclosureX = None (Open)H = NEMA 1

w/Adapter BayI = NEMA 3R

w/Adapter BayJ = NEMA 3R/Heater

& Thermostat/Adapter Bay

K = NEMA 4w/Adapter Bay

L = NEMA 12w/Adapter Bay

M = NEMA 4XController w/Adapter Bay

ZBTE Model, Dimensions and WeightsNEMA 1 Enclosed Weight Application


100, 1502, 3 83 (2109) 30 (762) 28.5 (724) 310 (141) 1280 (580)

225, 2604 83 (2109) 30 (762) 28.5 (724)

A380 (173) 1385 (628)

1-7400

6002, 3 90 (2286) 36 (914) 28.25 (737) 660 (299) 1435 (651)4 90 (2286) 40 (1016) 28.25 (737)

B770 (349) 1540 (699)

1-8800, 1000 2, 3 90 (2286) 40 (1016) 28.25 (737) 765 (347) 1485 (674)

1200 4 90 (2286) 46 (1168) 28.25 (737) 910 (413) 1590 (721)1600, 2000 2, 3 80 (2023) 40.6 (1031) 64.6 (1640) 1978 (897) 4044 (1835)

1-6, 8-102600 4 80 (2023) 46.1 (1171) 64.6 (1640)

C2275 (1032) 4431 (2010)

30003 80 (2023) 40.6 (1031) 64.6 (1640) 2572 (1166) 4456 (2021)4 80 (2023) 46.1 (1171) 64.6 (1640) 3049 (1383) 4977 (2258)

1-6, 8-114000

3 90 (2286) 47.5 (1206) 80.8 (2051)D

4310 (1955) 4730 (2145)4 90 (2286) 54 (1372) 80.8 (2051) 5510 (2499) 5930 (2690)



ZBTE

100, 150, 225 1 #3/0 to 250 MCM260 1 #4 to 600 MCM400 1 #4 to 600 MCM600 2 #2 to 600 MCM

800, 1000, 1200 4 #2 to 600 MCM1600, 2000, 2600, 3000, 4000 * *






Application Notes1. Metric dimensions (cm) and weights (Kg) shown in

parenthesis adjacent to English measurements ininches and pounds.

2. Includes 1.25" door projection beyond base depth.Allow a minimum of 3" additional depth for projec-tion of handle, light, switches, pushbuttons, etc.

3. All dimensions and weights are subject to changewithout notice.

4. NEMA 3R, 4, 4X and 12 enclosure dimensions maydiffer than NEMA 1 shown above. Consult the factoryfor details.

5. Special lug arrangements may require different en-closure dimensions. See full product brochure (DEA-405) for details.

6. Packing materials must be added to weights shown.Allow 15% additional weight for cartons, skids,crates, etc.

7. Add 4" in height for removable lifting lugs.8. ZBTE 600-1200A standard configuration is top entry.

14" rear adapter bay required for bottom entry. Con-sult the factory for details.

9. Bypass switch weights for 1600-4000A units vary upto 10% based on connections variations. Weightsshown are for estimation only. Consult the factory for details.

10. 1600-4000A switches have ventilation louvers onboth sides and rear of enclosure. Louvers must beclear for airflow with standard cable connections.

11. Lug adapters for 3000-4000A limits may be stag-gered length for ease of cable entrance. Consult thefactory for details.

Section 14



Automatic Transfer SwitchesCritical Power ProductsModel ZBTED

ZBTED SeriesLow-Voltage, Bypass/Isolation Delayed Transition, Automatic andManual Transfer Switches—Ideal for inductive (motors/transformers, UPS) mission critical loads

—Adjustable ATS time delay in center “off” position—Bypass/Isolation for ease of ATS maintenance/testing withoutload loss of power







—Neutral Pole (4 pole only) – Identical construction to phasepoles with fully rated main and arcing contacts. Operation viasame mechanism as phase poles to prevent sustained connec-tion of source neutrals in separately derived systems, as last-break/ first-make transfer.







—Time Delays – Gen start, Source 2 stabilize, S1 g S2 transfercenter-off delay, Source 2 fail override, Retransfer to Source 1,S2 g S1 transfer center-off delay, Gen cool down, Independentsettings for Fast Test, Time Delay for Generator Voltage Sag

—Remote Access – All parameters locally (front USB port) or re-motely (serial or Ethernet) Adjustable



—Group C:All features from “B”plus: 4 additional field programma-ble inputs (total 8 inputs, 8 outputs)

—Group D:All features from “C”plus: 4 additional field programma-ble inputs (total 12 inputs, 12 outputs) & GE Flexlogic™ user -configurable control logic

—Group M: Manual ATS configuration







—Programmable Center-Off Position – For transition of motorand regenerative loads








Section 14


Automatic Transfer SwitchesCritical Power ProductsModel ZBTED


AmperageC = 100D = 150F = 225G = 260I = 400J = 600K = 800L = 1000M = 1200N = 1600O = 2000Q = 3000R = 4000


















Z D X






OperationD = DelayedTransition








ZBTED Model, Dimensions and WeightsNEMA 1 Enclosed Weight Application


100, 1502, 3 310 (141) 1280 (580)

225, 2604

83 (2109) 30 (762) 28.5 (724) A380 (173) 1385 (628)

400

6003 90 (2286) 36 (914) 28.3 (737) 660 (299) 1435 (651) 1-7, 94 90 (2286) 40 (1016) 28.3 (737)

B770 (349) 1540 (699)

800, 1000 3 90 (2286) 40 (1016) 28.3 (737) 765 (347) 1485 (674)1200 4 90 (2286) 46 (1168) 28.3 (737) 910 (413) 1590 (721)

1600, 2000 3 80 (2023) 40.6 (1031) 64.6 (1640) 1978 (897) 4044 (1835)1-6, 10

2600 4 80 (2023) 46.1 (1171) 64.6 (1640)C

2275 (1032) 4431 (2010)

30003 80 (2023) 40.6 (1031) 64.6 (1640) 2572 (1166) 4456 (2021)4 80 (2023) 46.1 (1171) 64.6 (1640) 3049 (1383) 4977 (2258) 1-6,

40003 90 (2286) 47.5 (1206) 80.8 (2051)

D4310 (1955) 4730 (2145) 8, 10

4 90 (2286) 54 (1372) 80.8 (2051) 5510 (2499) 5930 (2690)





2. Includes 1.25" door projection beyond base depth.Allow a minimum of 3" additional depth for projec-tion of handle, light, switches, pushbuttons, etc.





7. Add 4" in height for removable lifting lugs.8. Lug adapters for 3000-4000A limits may be stag-

gered length for ease of entrance. Consult the fac-tory for details.

9. 100-1200A standard configuration is top cable entry.14" adapter bay is required for bottom cable entry.Consult the factory for details.




ZBTED

100, 150, 225 1 #3/0 to 250 MCM260 1 #4 to 600 MCM400 1 #4 to 600 MCM600 2 #2 to 600 MCM

800, 1000, 1200 4 #2 to 600 MCM1600, 2000, 2600, 3000, 4000 * *




ZBTED Model – Delayed TransitionTransfer/Bypass-Isolation SwitchesThe ZTED Delayed Transition Transfer Switchwith a timed center-off position is available in abypass configuration. The ZBTED Model Bypassincorporates the features of both the ZBTE Bypass-Isolation Switch and the ZTED unit fortransfer of large motor loads, transformers,UPS systems or load shedding to a neutral“Off” position. Reference the ZTED unit featuresand operation discussion for more details.

Section 14



Automatic Transfer SwitchesCritical Power ProductsModel ZBTECT

ZBTECT SeriesLow-Voltage, Bypass/Isolation Closed Transition, Automatic andManual Transfer Switches—Ideal for mission critical loads (computer servers, HID emergencylighting, data acquisition equipment)

—Two source parallel time (“bumpless transfer”) of less than 100 milliseconds

—Bypass/Isolation for ease of ATS maintenance/testing withoutload loss of power





—Mechanism – Mechanically-held with highspeed transfer mechanism for make-before break closed transition transfers


—Neutral Pole (4 pole only) – Identical construction to phasepoles with fully rated main and arcing contacts. Operation viasame mechanism as phase poles to prevent sustained connec-tion of source neutrals in separately derived systems, as last-break/first-make transfer.







—Time Delays – Gen start, Source 2 stabilize, Source 2 fail override, Retransfer to Source 1, Gen cool down, Independentsettings for Fast Test, Time Delay for Generator Voltage Sag

—Remote Access – All parameters locally (front USB port) or remotely (serial or Ethernet) Adjustable



—Group C: All features from “B” plus: 4 additional field programmable inputs (total 8 inputs, 8 outputs)





—Event Recorder – 256 Event, 1ms accuracy, clock sync via Net-work Time Protocol (NTP)




—Fail to Sync and Extended Parallel Protection – Hardwired, independent controller








Section 14


Automatic Transfer SwitchesCritical Power ProductsModel ZBTECT


AmperageC = 100D = 150F = 225G = 260I = 400J = 600K = 800L = 1000M = 1200N = 1600O = 2000P = 2600Q = 3000R = 4000


















Z C X






OperationC = ClosedTransition








ZBTECT Model, Dimensions and WeightsNEMA 1 Enclosed Weight Application


100, 150, 225 2, 390 (2286) 36 (914) 28.5 (724)

730 (331) 1280 (580)260, 400 4 840 (381) 1385 (628)

6003 90 (2286) 36 (914) 28.3 (737)

A730 (331) 1435 (651)

1-7, 94 90 (2286) 40 (1016) 28.3 (737) 840 (381) 1540 (699)

800, 1000 3 90 (2286) 40 (1016) 28.3 (737) 835 (379) 1485 (674)1200 4 90 (2286) 46 (1168) 28.3 (737) 980 (444) 1590 (721)

1600, 2000 3 80 (2023) 40.6 (1031) 64.6 (1640) 1978 (897) 4044 (1835)1-6, 10

2600 4 80 (2023) 46.1 (1171) 64.6 (1640)B

2275 (1032) 4431 (2010)

30003 80 (2023) 40.6 (1031) 64.6 (1640) 2572 (1166) 4456 (2021)4 80 (2023) 46.1 (1171) 64.6 (1640) 3049 (1383) 4977 (2258) 1-6,

40003 90 (2286) 47.5 (1206) 80.8 (2051)

C4380 (1986) 4730 (2145) 8, 10

4 90 (2286) 54 (1372) 80.8 (2051) 5580 (2531) 5930 (2690)





2. Includes 1.25" door projection beyond base depth.Allow a minimum of 3" additional depth for projectionof handle, light, switches, pushbuttons, etc.





7. Add 4" in height for removable lifting lugs.8. Lug adapters for 3000-4000A limits may be stag-

gered length for ease of entrance. Consult the factory for details.

9. 100-1200A standard configuration is top cable entry.14” adapter bay is required for bottom cable entry.Consult the factory for details.




ZBTECT

100, 150, 225, 260, 400 1 #4 to 600 MCM600 2 #2 to 600 MCM

800, 1000, 1200 4 #2 to 600 MCM1600, 2000, 2600, 3000, 4000 * *




ZBTECT Model – Closed TransitionTransfer/Bypass-Isolation SwitchesThe ZTECT Closed Transition Transfer Switchmay be applied with a bypass-isolation switchfor the utmost in reliability and versatility. TheZBTECT Model provides the ability to withdrawthe transfer switch unit for maintenance orinspection. Reference the ZTECT unit featuresand operation discussion for more details.

Section 14



Automatic Transfer SwitchesCritical Power ProductsModel ZT30

ZT30 SeriesThe ZT30 is a UL tested 30-cycle short-time rated AutomaticTransfer Switch that is utilized to facilitate selective coordinationvia upstream Over Current Protective Device. The ZT30’s industryleading short-time rating and best-in-class footprint greatly sim-plifies the selective coordination design process and provides theutmost in system design flexibility for future system growth. TheZT30 supplies 100% rated power to loads after an overcurrentevent, helping to maximizing power distribution system reliabilityand uptime. The ZT30 is available in standard, delayed and closedtransition modes as well as in bypass-isolation.

Advanced Controller Features—Ease of Operation - Intuitive, color graphical display with built-in help functions

—Advanced Troubleshooting - High-speed event log & data logging

—Diagnostics - Advanced system troubleshooting & event reporting

—Low Cost Installation & Quick Commissioning - Built-in networking for reduced hardwiring, centrally located customer connections

—Simple, Low-Cost Facility Integration & Monitoring - Built-innetworking, customizable User Data Map and plug-and-playmonitoring using EnerVista™ Viewpoint Monitoring software

—Power Quality Metering - True PQ metering, including wave-form, harmonics & high-speed event capture

Key Applications / Verticals—Healthcare Facilities—7x24 Call Centers – Data Centers, E-Commerce, Call Centers—Telecom Central Offices—Waste Water Treatment

The Challenge in Life Safety / Mission-Critical FacilitiesMomentary loss of electric power to critical loads can endanger-life, cause severe financial losses, or both. Today’s 7x24 service-centers, critical healthcare facilities, critical operation powersystems and data centers demand more than just continuouspower delivery to critical loads. The quality of power delivered tothe load, the effectiveness of periodic system testing and the abil-ity to diagnose outages and disturbances in the electrical systemare issues that have serious implications for critical facilities.

Selective CoordinationTo minimize the effect of a fault to the overall electrical distribu-tion system in life/public safety and mission-critical facilities, National Electrical Code (NEC) requires selective coordination ofovercurrent protective devices (OCPD). The 2011 NEC, Article 100defines selective coordination as the “localization of an overcur-rent condition to restrict outages to the circuit or equipment af-fected, accomplished by the choice of OCPD’s and their ratings orsettings. Simply put, only the OCPD directly supplying the over-loaded/faulted part of the system will open, allowing the rest ofthe system to remain operational. As shown in Fig. 1, in a selec-tively coordinated system, fault at Critical Load 1 (CL1) will onlycause Over Current Protective Device 7 (OCPD 7) to trip open. Allother critical loads will remain operational.

30-Cycle Short-Time RatingPer Section 5.4.2 of NEMA 2010, “if coordination is accomplishedusing short-time delays with circuit breakers, the transferswitches require a suitable short-time rating as well.” The timedelay assures that the downstream OCPD nearest the fault opensfirst. In a selectively coordinated design, every OCPD has a higherovercurrent rating and a longer time-delay than the one below it,so that every overload/fault will be cleared by the OCPD immedi-ately “upstream” of the fault.

These OCPDs’ short-time delay opening typically exceed the 3-cycle time duration. As a result, the 3-cycle ATS’s that were once the norm are no longer sufficient in many cases.

ATS’s short-time current rating is defined by UL1008 as the maxi-mum amount of fault current a switch can withstand at a speci-fied voltage for a given amount of time and remain functional. Fora system that utilizes OCPD’s with short-time delays to be selec-tively coordinated, the automatic transfer switch must not onlyable to withstand and close-on the fault, but also be functionaland “supply power to the loads after a fault”. A UL listed 30-cycleshort-time rated automatic transfer switch alleviates the chal-lenges associated with selective coordination design process.

30-Cycle ATS

G

Normal Source

OCPD 3 OCPD 4 OCPD 5 OCPD 6

OCPD 1

OCPD 2

OCPD 8CL3 CL4 CL5

CL2CL1

OCPD 7

Figure 1. Selective Coordination

Section 14



ReliabilityThe ZT30’s industry leading short-time rating (85kA) helps assurethat 100% rated power is supplied to the loads after a short circuit/withstand event, maximizing power distribution system reliability and uptime.

SafetyThe ZT30’s standard Manual Quick Make/Quick Break operationhas the same contact speed as an electric operation and enablesoperators to perform manual operation with the door closed foradded safety.

The optional shutter system for the bypass-isolation models further enhances safety during maintenance. The shutter systemcloses when the ATS is under maintenance, thereby protectingpersonnel from accidentally touching live bus while performingtesting or maintenance. The shutter system automatically re-opens when the ATS is racked back in the “AUTO” position.

Manual Quick Make and QuickBreak Operation (with pushbutton activation)

Shutter System Design (optional)

Centralized Terminal Connection

Interchangeable Source Cable Termination Kit

Mechanical Switch Position Indicator

Ease of Installation / Maintenance—The “Plug and Play” Interchangeable Source Cable Terminationkit enables installers to easily and quickly reconfigure the desig-nation of Source 1 and Source 2 lugs.

—The mechanical position indicator enables personnel to quicklydetermine the switch’s position.

—Centralized terminals enable easy customer control wiring connection.

Space Optimization / Flexibility—Multi-tap transformer enables operation on a wide range of system voltages.

—Small footprint and removable panels (side/back) provides space optimization and easy access for maintenance.

Multi-tapTransformer


Section 14



MX350 Microprocessor Controller

Microprocessor ControllerAvailable either with the MX350 or the MX250 microprocessorcontroller, the ZT30 family enables customers to select the controller that best meets their application needs. Loaded withfeatures that allow ease of operation, advanced system trou-bleshooting, diagnostics and event capturing, to name a few, the MX350 is one of the most advanced ATS microprocessor controllers in the industry. Applications that require simple voltage and frequency sensing are ideal for the MX250 controller.

MX350 Features—Diagnostics & Event Recording—Sequence of Events Recorder (256 events)—Data Logger (configurable 20 channel data logger)—Waveform Capture/Oscillography—Outage & Test Event Recorder—10 Digital & 11 Analog Configurable Alarms

—Power Quality Metering—Provides true RMS metering for current, voltage, real/reactivepower, energy use, power factor & frequency

—Networking—Built-in, two-wire RS-485 serial & 10/100 base-T Ethernet—Open protocols – Modbus RTU (Serial) & Modbus (TCP)—Supports simultaneous communications on both Serial &10/100 base-T ports

—Easily interfaces with third-party building management systems

—USB programming port accessible with ATS enclosure door closed

—Facility Integration—User-configurable customer data map—Fast download of event, waveform & data logs—Auto load shed capability, without need for system mastercontrol/PLC

—Advanced User Interface & Controls—Easy-to-See Status LEDs—Transfer Inhibit—USB Programming Port—Alarm Rest—Test

MX350

MX250

MX250 Features—Voltage & Frequency Sensing—3 Phase Sensing Both Sources—Quick-Voltage Averaging—Zero Crossing Detection—Phase Imbalance Detection (adj. “Fail”, “Restore” & response time)

—Rotation Match Checking (for “live source to live source” transfer)

—Synchro-Scope—Voltage Imbalance Detection—Phase Rotation Check—Universal Motor Disconnect—Nested Timers—Automatic Daylight-savings time change—Built-In Timer Exerciser—Built-In Clock/Calendar Exerciser Option—Keypad Entry—4 Line LCD Backlit Display—Communications-Ready (ZNET)—Modbus RTU—LONWORKS

Section 14


Automatic Transfer SwitchesCritical Power ProductsMX350 Option Package

Feature Description See Note# CodeOption Package

A B C D M

ContactsATS Source 1 & Source 2 Position Contacts, SPDT 3-A3, 3-A4 • • • • •

Bypass MTS Source 1 & Source 2 Position Contacts, SPDT 1 1-AB3, 1-AB4 • • • • •

Remote Load Test Signal, Dry Contact Input Q2 • • • • •

Generator

Engine Start Contact, SPDT E • • • • •

Source 1 to 2 In-Phase Monitor (w/enable-disable) 2 R50 • • • • •

Synchroscope (Gen Fast/Slow vs. Utility Source) 3 SYNC • • • • •Programmable Gen Exerciser, Gen-Util Applications,365 Day (user-selectable with/without load) 4 EX-1 • • • •

Automatic Load Shed, w/adj. Freq, Voltage & kW 5 LS 1 • • •

Indication/Status

Color Graphical Display with USB Calibration Port & Embedded Help OIP, USB, HELP • • • • •

Status LED’s for Source 1 & 2 Connected, Source 1 & 2 Available L1/P, L2/P, L3/P, L4/P • • • • •

Status LCD Indication of ATS in Center-off Position 6 LN/P • • • • •

Event Log, last 256 events EL/P • • • • •

Customer Configurable Alarms, 10 Status-Digital & 10 Threshold-Analog CCA-A, CCA-D • • •

Detailed Outage and Test Reports INFO • • • • •

Event Waveform Capture WC-1 • • •

Data Logger DL 1 • • •

FlexLogic™ FLEX •

Sensing &Calibration

Calibration upload/download via Enervista™ MX350 Setup CAL 1 • • • • •

Diagnostics Reports DIAG 1, 2, 3 • • • • •

Over/under Freq Source 1 & 2 J2E /J2N • • • • •

Over/under Voltage Source 1 & 2 R1, R1-3, R7, R8, R17, R2E • • • • •

Phase Rotation Sensing R16 • • • • •

Voltage Imbalance Sensing VI • • • • •

Time Delays

Neutral-Source 1 or Neutral-Source 2 Transfer 6 DT/DW • • • • •

Engine Start Timer, adj up to 10 sec 9 P1 • • • • •

Source 2 - Source 1 Retransfer T • • • •

Emergency Source Failure Override Time Delay ESO • • • •

Engine Stop/Cool Down U • • • • •

Source 1 - Source 2 Transfer W • • • •

Switches

Test Switch, Load/No Load Adjustable 6/P • • • •

Maintenance Switch Maintenance Switch • • • • •

Control Switch Control Switch • • • • •

Bypass Retransfer Time Delays, Source 1-2/2-1, Adjustable 7 BYP-T, BYP-W • • • •

Manual Transfer, Source 1-2/2-1 YE/P, YN/P •

Preferred Source Selector Switch 8 S3/P • • • •

Auto/Manual Transfer, Source 2 to Source 1 S5/P • • • •

Auto/Manual Transfer, Source 2-1/1-2 S12/P • • • •

Commit/No Commit Transfer to Source 2 S13/P • • • •

Transition Mode Selector Switch (Microprocessor activated switch) 3 TMS/P • • • •

ProgrammableI/O

4 INPUT and 4 OUTPUT • • •

8 INPUT and 8 OUTPUT •

12 INPUT and 12 OUTPUT •

MX350 Option Package

Application Notes1. Bypass Only2. Utility to Generator Only3. Closed Transition Only4. Standard on Gen-Utility Applications Only5. Requires R15 for transfer of ATS away from source, utilizes (1) programmable output if only signal to downstream load required6. Delayed Transition Only7. Automatic Switches Only8. Not available with load shed option/R159. Can be extended beyond 10 sec (up to 259 min) with customer-supplied 120VAC 24VDC external input

Section 14



Automatic Transfer SwitchesCritical Power ProductsMX250

Accessories Description6A/P Microprocessor activated test switch (Maintained)6A (selector or key)

Hardwired test switch (Maintained)6B (selector or key)

Hardwired test switch (Maintained Auto - Momentary Test)

A1 Source 1 failure Auxiliary Contact DPDT (max 5 sets)

A1E Source 2 failure Auxiliary Contact DPDT(max 5 sets)

A3 Source 2 position Auxiliary Contact DPDT (max 5 sets)

A34N Closed and Neutral Position ContactA4 Source 1 position Auxiliary Contact DPDT

(max 5 sets)A62 Motor disconnect and staged restart

(max 10 contacts)AB3 Bypass Source 2 position Auxiliary Contact SPSTAB4 Bypass Source 1 position Auxiliary Contact SPSTBC Battery ChargerCALIBRATE Microprocessor activated calibration featureCDP Programmable exerciser daily, 7/14/28/365 days

user-selectable, with or without loadCDT Exerciser no load timerCTAP Chicago transfer alarm panel mounted on

enclosure doorControl Switch

Inhibits controller from transferring for maintenance and troubleshooting

MaintenanceSwitch

Removes power from control circuit for maintenance and troubleshooting

DT (DELAYED TRANSITION ONLY)Time Delay from Neutral Switch position toSource 1 on retransfer

DW (DELAYED TRANSITION ONLY)Time Delay from Neutral Switch position toSource 2 on retransfer

E Engine Start RelayEL/P Event log of last 16 eventsEVM EnerVista Viewpoint MonitioringGB Ground Bus Mechanical LugsF Fan contact, closed when engine runsHTH Thermostat and humidistat controlled heater

mounted in enclosureJ2E Over/Under Frequency Source 2J2N Over/Under Frequency Source 1K/P Frequency Indication on the controllerLN/P Center-off position LCD-IndicatorL1/P LED light indicates Switch in Source 2 positionL2/P LED light indicates Switch in Source 1 positionL3/P LED light indicates Source 1 availableL4/P LED light indicates Source 2 availableLCM LonWorks Communication ModuleMCM Modbus RTU Communication ModuleECM Ethernet Communication Adapter.

Requires MCM (Modbus) Accessory.

MX250 Accessory DefinitionsAccessories DescriptionM2 Three Phase Amp Meter (Analog)M90 EPM2000 True RMS Digital Meter with display

(Amps, Volts, Power, Energy, Power Factory andFrequency). 3 Line LED Display. 50/60 Hz Univer-sal Operation. 3 phase. Standard Modbus RTURS485 communications capability.

M90A(M90 & MCM)

Adds Pre-Wiring for Enervista Viewpoint Monitoring of M90 Accessory & ATS Status using Modbus RS485 Serial Communications

M90B(M90, MCM & ECM)

Adds Pre-Wiring for Enervista Viewpoint Monitoring of M90 Accessory & ATS Status using Ethernet TCP/IP Communications

M91 EPM6000 True RMS Digital Meter with display(Amps, Volts, Power, Energy, Power Factory andFrequency, THD). Certified energy and demandmetering.Meets ANSI C12.20 and IEC 687.Accuracy Classes. Front IrDA Port Laptop Connection. Std.Modbus RTU RS485 or DNP 3.0 communicationscapability

M91A(M91 & MCM)

Adds Pre-Wiring for Enervista ViewpointMonitoring of M91 Accessory & ATS Status using Modbus RS485 Serial Communications

M91B(M91, MCM & ECM)

Adds Pre-Wiring for Enervista Viewpoint Monitoring of M91 Accessory & ATS Status using Ethernet TCP/IP Communications

P1 Engine Start Timer (adjustable to 6 sec.)P2 External to Controller extended Engine Start

Timer (adjustable to 300 sec.)Q2 Peak shave/remote load test/area

protection - Relay (S.P.D.T.) (Need to specify voltage - 120 VAC, 24 VAC, 24 VDC)

Q3 Inhibit transfer to Source 2 (load add relay) -Relay (S.P.D.T.) (Need to specify voltage - 120 VAC,24 VAC, 24 VDC)

Q7 Inhibit transfer to Source 1 - Relay (S.P.D.T.)(Need to specify voltage - 120 VAC, 24 VAC, 24 VDC)

R1-3 Over Voltage sensing for Source 1 three phaseR8 Over Voltage sensing 3-phase source 2R15 Load Shed. Should Source 2 become

overloaded, a signal can be given to switch tothe Neutral position.

R16 Phase rotation sensing of Source 1 and Source 2R26 Interruptible Power Rate Provisions. Allow trans-

fer out of Source 1 position to Mid position ordead Source 2. Alarm and Pre-Signal circuit included. (Need to specify voltage - 120 VAC, 24 VAC, 24 VDC)

R50 In Phase monitor between Source 1 andSource 2 to allow transfer

S3 Prime Source Selector SwitchS5P Microprocessor activated auto/manual retrans-

fer selector switch for transferring to Source 1(includes microprocessor activated YN accessory)

Section 14


Automatic Transfer SwitchesCritical Power ProductsMX250

MX250 Accessory Group Matrix

Accessories DescriptionS12P Microprocessor activated auto/manual retransfer

selector switch for transferring to Source 1 (includesmicroprocessor activated YN & YE accessory)

S13P Microprocessor activated commit/no commit ontransferring to Source 2 (with enable/disable settings)

S14 (selector or key) Switch for retransfer to normal-test-auto

SPD Surge Protection DeviceSSS Bypass Safety Shutter SystemSW1 Auto/Off/Start Engine control selector - Door mounted

(keyed or non-keyed operation available)

Accessories DescriptionT Retransfer to Source 1 adjustable time delayTMS Transfer Mode Selector (Closed Transition Only)T3/W3 Pre-signal contact on transfer to Source 1 or

Source 2 during testU Engine stop /cool adjustable cool down timerUMD Pre and post transfer motor disconnect and restart.VI Voltage imbalance between phases (3 Phase only)W Adjustable time delay on transfer to Source 2YEN Bypass transfer timers function (soft key switch

in microprocessor)

AccessoriesGroup Packages

MSTD MEXE MCON MSEN MSPE MPSG6/P

A1

A1E

A3

A4

Calibrate

CDT

CDP

Control Switch

Maintenance Switch

*DT

*DW

E

EL/P

J2E

J2N

K/P

L1/P

L2/P

L3/P

L4/P

*LN/P

P1

Q2

Q3

Q7

R1-3

R8

R15

R16

R50

S5P

S12/P

S13/P

T

T3/W3

U

UMD

VI

W

YEN

Standard Accessory included in the group package.Optional Accessory not included but can be added to group package.Optional Accessory. Can not be used with accessory having the same symbol.

* Delayed Transition Units Only

MX250 Accessory Definitions (continued)

Section 14




Technical SpecificationsATS & Isolation Bypass

Transition Type

Standard (Open) Transition YESDelayed Transition YESClosed Transition YES

Amperage Rating 1000A to 3000A

Poles 3 or 4 Pole Switching

Voltage

120V L-L

208V L-L

220V L-L

230V L-L

240V L-L

380V L-L

400V L-L

415V L-L

440V L-L

460V L-L

480V L-L

575V L-L

600V L-L

Multi-tap

Short-Time Rating85kA: 30 Cycle (0.5s)

100kA: 3 cycle

Enclosure Type

Open Style

NEMA 1

NEMA 3R

NEMA 4

NEMA 4X

NEMA 12

Microprocessor ControllerMX250

MX350

CertificationsUL/cUL rated up to 600V at 50/60Hz

Seismic Qualified to IBC-2009 & IEEE 693-2005

OSHPD

Code ComplianceNFPA 70, 99, 101, 110

IEEE 446, 241, 602

NEMA ICS 10, CC1 (lug)

Enclosure ComplianceUL 50

UL 508

NEMA 250

Section 14


BC

A

1"

A

C B

1"

1"

A

C B

1"

A

C B


Switch Type Ampere Rating Poles

Dimensions: Split Cable Entry (NEMA 1) Inch (cm) Approx. Shipping (NEMA 1) Weight (lb)Application

NotesHeight (A) Width (B) Depth (C)Reference Figure 3-Pole 4-Pole

Standalone ATS

1000 3, 4 90 (229) 36.5 (93) 23.5 (60) A 998 1051 1- 5

1200 3, 4 90 (229) 36.5 (93) 23.5 (60) A 998 1051 1- 5

1600 3, 4 90 (229) 36.5 (93) 23.5 (60) A 998 1051 1- 5

2000 3, 4 90 (229) 36.5 (93) 23.5 (60) A 998 1051 1- 5

2600 3, 4 90 (229) 36.5 (93) 32.5 (83) B 1239 1322 1- 5

3000 3 90 (229) 36.5 (93) 32.5 (98) B 1239 — 1- 5

3000 4 90 (229) 36.5 (93) 38.5 (98) B — 1356 1- 5

Bypass

1000 3, 4 90 (229) 45.5 (116) 50 (127) C 2497 2707 1- 5

1200 3, 4 90 (229) 45.5 (116) 50 (127) C 2497 2707 1- 5

1600 3, 4 90 (229) 45.5 (116) 50 (127) C 2497 2707 1- 5

2000 3, 4 90 (229) 45.5 (116) 50 (127) C 2497 2707 1- 5

2600 3, 4 90 (229) 45.5 (116) 60 (152) D 2856 3097 1- 5

3000 3, 4 90 (229) 45.5 (116) 60 (152) D 2856 3097 1- 5

Dimension and Weight

CU UL Listed Solderless Screw-Type Terminals for External Power Connections

Switch Type Ampere Rating Poles

Dimension: All Top Or All Bottom Cable Entry(NEMA 1) Inch (cm) Approx. Shipping (NEMA 1) Weight (lb)

Application NotesHeight (A) Width (B) Depth (C)

Reference Figure 3-Pole 4-Pole

Standalone ATS

1000 3, 4 90 (229) 36.5 (93) 32.5 (83) A 1050 1103 1- 5

1200 3, 4 90 (229) 36.5 (93) 32.5 (83) A 1050 1103 1- 5

1600 3, 4 90 (229) 36.5 (93) 32.5 (83) A 1050 1103 1- 5

2000 3, 4 90 (229) 36.5 (93) 32.5 (83) A 1050 1103 1- 5

2600 3 90 (229) 36.5 (93) 38.5 (98) B 1273 —

2600 4 90 (229) 36.5 (93) 53.5 (136) B — 1442 1- 5

3000 3 90 (229) 36.5 (93) 38.5 (98) B 1273 —

3000 4 90 (229) 36.5 (93) 53.5 (136) B — 1442 1- 5

Bypass

1000 3, 4 90 (229) 45.5 (116) 60 (152) C 2856 3097 1- 5

1200 3, 4 90 (229) 45.5 (116) 60 (152) C 2856 3097 1- 5

1600 3, 4 90 (229) 45.5 (116) 60 (152) C 2856 3097 1- 5

2000 3, 4 90 (229) 45.5 (116) 60 (152) C 2856 3097 1- 5

2600 3, 4 90 (229) 45.5 (116) 60 (152) D 2856 3097 1- 5

3000 3 90 (229) 45.5 (116) 60 (152) D 2856 —

3000 4 90 (229) 45.5 (116) 85 (216) D — 3240 1- 5

Switch TypeSwitch Size

AmpsNormal, Emergency & Load Terminals

Cable / Pole (Max) Wire Ranges

ATS

1000 6 2-750 Kcmil

1200 6 2-750 Kcmil

1600 6 2-750 Kcmil

2000 6 2-750 Kcmil

2600 8 2-750 Kcmil

3000 8 2-750 Kcmil

Bypass

1000 6 2-750 Kcmil

1200 6 2-750 Kcmil

1600 6 2-750 Kcmil

2000 6 2-750 Kcmil

2600 8 2-750 Kcmil

3000 8 2-750 Kcmil

Screw-Type Terminals for External Power Connections Application Notes1. Line and load terminals are located in rear and arranged for bus bar connec-

tion. Terminal lugs are available as an accessory. Contact the GE factory for more details.

2. Special terminal lugs are available at additional cost. Contact the GE factory and advise cable sizes and number of conductors per pole.

3. Fully rated neutral provided on 3 phase, 4 wire system.4. Special lug arrangements may require different enclosure dimensions.

For certified drawings, contact the GE factory.

Application Notes1. All dimensions and weights are approximate and subject to change without notice.2. Special enclosures (NEMA 3R, 4, 4X, 12) dimensions and layout may differ. Consult

the GE factory for details.3. Special lug arrangements may require different enclosure dimensions. For certified

drawings, contact the GE factory.4. Add 4” in height for removable lifting lugs.5. Enclosures with louvers must be clear for airflow on the rear for ventilation.

Figure A

C B

A

1”

C B

A

1”

CC BB

AA

1”1”

Figure C

Figure B

Figure D

Section 14





Product TypeZT = ATSZB = Bypass

Model

Series3 = 30 Cycle

Transition TypeST = StandardDT = DelayedCT = Closed

Amperage100 = 1000 Amps120 = 1200 Amps160 = 1600 Amps200 = 2000 Amps260 = 2600 Amps300 = 3000 Amps

VoltageA = 120V L-LB = 208V L-LC = 220V L-LD = 230V L-LE = 240V L-LF = 380V L-LG = 400V L-LH = 415V L-LI = 440V L-LJ = 460V L-LK = 480V L-LL = 575V L-LM = 600V L-LX = Multitap

ApplicationS = Utility to GeneratorU = Utility to UtilityM = Manual

Controller2 = MX2503 = MX350

Enclosure1 = NEMA 1R = NEMA 3R4 = NEMA 4X = NEMA 4X2 = NEMA 12N = Open Style

ZT30 ZB 3 CT 160 E - K C 1 S 3

Number of Wires, FrequencyA = 2 wire at 60 HzB = 3 wire at 60 Hz (1-phase)C = 3 wire at 60 Hz (3-phase)D = 4 wire at 60 HzE = 2 wire at 50 HzF = 3 wire at 50 Hz (1-phase)G = 3 wire at 50 Hz (3-phase)H = 4 wire at 50Hz

Number of PolesE = 3-PoleF = 4-Pole

Product Number Example:ZB3CT160E-KC1S3

Bypass, 30 Cycle, Closed Transition, 1600A, 3-pole, 480V, 3 wire at 60 Hz (3-phase),

NEMA 1, Utility to Generator, MX350 Controller

automatic transfer switches section 14 - abb group · section 14 rev. 1/19 go.abb/industrial ge...

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