Spectra® RMS Circuit Breakerswith microEntelliGuard™ Trip Units

imagination at work

Greater system coordination, arc flash protection and reliabilityfor new equipment and retrofit applications

GE EnergyIndustrial Solutions

Spectra® RMS Circuit Breakerswith microEntelliGuard™ Trip Units

Enhanced performance for SG600 and SK1200 molded case circuit breakersSpectra SG600 and SK1200 molded case circuit breakers now feature microEntelliGuard trip units, which bring improved system protection, coordination, selectivity, performance and diagnostics.

Advanced interface and capabilitiesBased on the EntelliGuard TU trip unit platform, microEntelliGuard delivers the same HMI interface, advanced features and protective functions, including enhanced time-current curveshaping capability, ground fault alarm, direct Modbus communications, reduced energy let-through setting, zone selective interlock, neutral protection, waveform capture and programmable output contacts.

Common accessories and backwards compatibilityThe microEntelliGuard trip unit utilizes the same power management accessories offered forthe Spectra MicroVersaTrip trip unit, and adds a new advanced junction box, interconnectcable and terminal boards. The footprint and interrupt ratings of the breakers are unchanged, and they are backwards compatible with existing equipment and installations.The microEntelliGuard trip unit uses the same universal rating plugs and test kit as theEntelliGuard TU trip unit.

microEntelliGuard™ Trip Units put you in control of your systemYou get the flexibility to create the curve shape thatbest suits your system’s need – not a one-size-fits-all-solution. Standard Long Time characteristics exactlymimic the curve of a thermal magnetic circuit breakerand closely match our new line of global Record Plus®

molded case circuit breakers. Optional fuse-like Long Time and Ground Fault curves allow optimumselectivity in systems that employ both fused and circuit breaker devices, providing selectivity and protection simultaneously.

You gain the ability to adjust to exactly what yoursystem needs. A wide range of continuous adjustmentLong Time delays ensure the circuit breaker can beexactly dialed in to your selectivity and protection needs.

You can sustain load and protect optimally all thetime. Twelve Short Time bands allow you to set yourcircuit breaker to sustain load requirements withoutslowing your protection more than you absolutely must.

Flexible curve shaping adapts to every need. MultipleShort Time diagonal bands tune your protection toexactly where it needs to be.

You get selectivity and instantaneous clearing at thesame time.1 The Zone Selective Interlocking systemsimultaneously provides short time, ground fault andinstantaneous selectivity.

Current metering is standard, and optional power,energy and reactive power metering and waveformcapture are available.

Flexible serial communications via Modbus RTUmakes programming easy for any power or buildingmanagement system.

microEntelliGuard integrates directly into GE’sEnerVista® Power Management System.

Flexible programmable output contacts are useful forsuch various needs as load shedding, ground faultalarm, trip indication and many others.

A large, easy-to-see, backlit LCD screen makes it easier to set up the trip unit in such environments as a darkened electrical room.

1Instantaneous ZSI is available only as an output signal on Spectra microEntelliGuard trip units

MVT I2t, thermalCB & fuse I4t curves

Fine adjustmentexact delay …No more… No less

Broad range of adjustments, shapes, slopes, delays

Fuse shaped GFfor enhancedselectivity in allsystems

Unrestrained

Advanced ZSI allows Instantaneous ZSI to withstand ratings

Restrained

ZSI

ZSI

Greater system coordination, enhanced protection and uptime

Standard features• Adjustable Long-Time pickup and delay bands with three curve shapes (MVT I2t, CB and FuseI4t) for optimal system coordination (includes thermal memory for enhanced system protection)

• Adjustable Short-Time pickup with multiple delay bands, curve slopes, I2t IN/OUT, and OFF setting• Adjustable Instantaneous pickup• 3-Phase ammeter• Backlit LCD display with five-button tactile keypad for function selection and set point adjustment;and sealable, clear Lexan cover for tamper-resistant settings

• LED Status Indicator to show “health” of trip unit• Trip Target indication and local pickup warning signal• Interchangeable/universal rating plugs• Test set jack for GTUTK20 test kit• True RMS sensing for accurate response to high harmonic content waveforms• EMI immunity per ANSI C37.90

Optional features• Ground Fault (Trip or Alarm) pickup and delay bands with multiple slopes, I2t IN/OUT for optimalsystem coordination

• Neutral Protection provides overload protection on the system neutral• Zone Selective Interlocking (ZSI) capability on Short Time, Ground Fault and Instantaneous settingsfor optimal system coordination and selectivity

• Reduced Energy Let-Through (RELT) setting for enhanced equipment and personnel protection• Advanced metering option includes the ability to monitor current, voltage, energy, frequency,power factor, power (real/reactive/apparent) and peak power demand

• Modbus communications system with user selectable address assignment for communicationdirectly with EnerVista Viewpoint power system monitoring software

• Waveform capture for enhanced system diagnostics• Protective Relays for enhanced system protection– Voltage Unbalance– Current Unbalance– Under Voltage– Over Voltage– Power Reversal– Load Alarm

• Input relay for RELT signal or remote tripping of the breaker• Two programmable output relays for enhanced signaling and diagnostics• Control Power option provides connection capability for +24Vdc control power via the distributioncable system

Other features• UL Listed for reverse feed and HACR type (standard)• UL Listed 100% continuous current rating (optional) • UL Listed Current Limiting (optional on SG Frame)• Internal Accessories (Shunt Trip, Undervoltage Release, Auxiliary Contacts, Bell Alarm) – ULListed for field installation and common across the entire line of Spectra RMS breakers

Feature summary

Feature Benefit System / AssetProtection

LT/STCoordination

Inst.Selectivity Arc Flash System

PerformanceDiagnostics /Reliability

Enhanced adjustability& flexibility of time cur-rent curve shape, slope,and delay bands

Enhanced system protection viatight coordination with upstreamand downstream devices including fuses

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Ground Fault Trip orAlarm*

Enhanced system and asset protection - especially for processdriven applications

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Zone Selective Interlock(ST/GF)* System protection � �

Zone Selective Interlock(INST)*

Maximum system protection,coordination, and selectivity

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Reduced Energy Let-Through*

Enhance system and personnelprotection

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Protective RelayFunctions*

Enhanced system and asset protection via a suite of protective relays

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Neutral Protection* Protection on heavy harmonic loads �

Sealable Lexan Trip UnitCover

Prevents unauthorized trip unitsetting changes for maximumsystem, personnel, and asset protection.

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Long Time ThermalMemory Enhanced system protection �

Input Relay*System and asset protection viaremote trip (dedicated if RELTenabled)

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Programmable OutputContacts*

Maximize system uptime via signaling on GF alarm, overcurrenttrip, protective relay trip, loadalarm or health status

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Advanced Metering*System performance monitoringand diagnostics of critical current,voltage, and power characteristics

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ModbusCommunications*

System performance monitoring,reporting and diagnostics (compatible with EnerVistaViewpoint power system monitoring software)

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Test Set Jack forGTUTK20 Test Kit

Maximize system uptime andenhanced diagnostics

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Trip Indication Targets Visual Trip indication for quickdiagnostic evaluation

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Event Log Record last 10 trip events �

Waveform Capture* Enhanced diagnostic feature tomaximize system uptime

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HMI - Backlit LCDDisplay & 5-ButtonKeypad

Ease of programming and viewing status/metering displays

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LED Status IndicatorEnhanced diagnostic feature tomaximize system uptime (visualdisplay of trip unit’s “health”)

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Visual Pickup WarningSignal

For quick diagnostics and pre-trip detection

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* Optional feature

DEA-512 (07/10)

imagination at work

GE Energy41 Woodford AvenuePlainville, CT 06062

www.geelectrical.com

Spectra and Record Plus are registered trademarks and microEntelliGuard is a trademark of the General Electric Company.

Information provided is subject to change without notice. Please verify all details with GE. All values are design or typical values when measured underlaboratory conditions, and GE makes no warranty or guarantee, express or implied, that such performance will be obtained under end-use conditions.

1Main or service disconnects2RELT available on individually mounted feeders only (not on group mounted)

Spectra microEntelliGuardA-Series Busway Spectra Panelboard Switchboard AV-3 Motor ControlMain Bus Plug Main Feeder Main1 Feeder Main Feeder Main Feeder

StandardProtection

Long Time/Short Time/Instantaneous

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Ground Fault - � � - � � � � � �

Ground Fault Alarm - - � - � � � � � �

AdvancedProtection

Neutral Protection - - - - � � � � - -ZSI (ST/GF) - - � - � � � � - -ZSI (ST/GF/INST) - - � - � � � � - -RELT - - � - � �2 � � � �

AdvancedFeatures &Communications

Modbus Communications - � - - � � � � � �

Advanced Metering - - - - � � � � � �

Waveform Capture - - - - � � � � � �

Protective Relays - - - - � � � � � �

Capabilities by equipment for Spectra RMS circuit breakers with microEntelliGuard