Series NRX� Power (Air) Circuit Breakers for

Low Voltage Power Distribution Applications

Product Focus

Series NRX, A CompactGlobally Certified LowVoltage Power (Air)Circuit Breaker

Eaton offers a low voltagepower (air) circuit breaker with:

• Two-stage stored energymechanism with remoteclose capability

• Comprehensive global certifications

• High interruption and shorttime withstand performance

MEETING YOUR APPLICATION NEEDS WITH SERIES NRX

Comprehensive compliance to world standards Global standards and certifications compliance with UL 1066, UL 489, ANSI C37.51, ANSI C37.20.1, ANSIand certifications. C37.50, ANSI C37.17, ANSI C37.13, NEMA� AB1 and AB4, NEMA SG3, CSA� 22.2, NMX J2-266-ANCE,Take orders from and ship anywhere. IEC 60439-1, IEC 60947-1, IEC 60947-2, IEC 60947-3, CE, CCC and KEMA-KEUR. Future listings will

include ATS, ABS, DNV and Lloyds. Smaller size and easily integrated single-frame breaker. Fits within existing UL 1558, UL 891 and IEC structures designed for competitive breakers. Take on higher density and smaller enclosure switchgear The one frame size reduces drawing conversion, structure integration time and parts inventory. and switchboard opportunities using common design.High endurance mechanism provides extended The unique patented two-stage stored energy mechanism with remote close capability increasesoperational performance. contact pressure to lower contact resistance for improved thermal performance, and has been Enable lower total cost of ownership via lower tested to 20,000 mechanical and 10,000 electrical operations. The wider contact gap improves fault inspection/maintenance costs. interruption and open circuit isolation capabilities to extend contact life.Complete range of trip unit options and communication Three trip units offer a full range of protection needs — from LSIG with ZSI, metering, protective relays protocols for evolving application needs. and harmonics, to waveforms and Arcflash Reduction Maintenance System. When communications areUse one frame for different applications requiring basic required, breaker-mounted modules for Modbus� and Eaton's INCOM save space and time as comparedto all-inclusive trip unit functions and programs. to panel-mounted modules.Multiple cable and bus connection options enable Options include cable termination for front or rear bus connection, drawout or fixed-mounted styles. quick and flexible integration. Tension clamp secondary contact terminations allow for easy installation and quick connection. Turn jobs around faster.Easily accessible during switchgear and The design of the breaker and cassette enables full use of the handle and cassette rails with a gloved switchboard scheduled maintenance. hand, enabling electricians to remain in arc flash prevention gear with complete ease of movement. Get back up and running quickly. The breaker handle’s ergonomic design maximizes functionality and leverage across seven complete

strokes to charge the breaker quickly and easily.

• Comprehensive electronic trip unit innovation, includingArcflash ReductionMaintenance System�

• Multiple breaker-mountedcommunication protocoloptions

Series NRX is available as one compact package, easilyintegrated into your IEC or UL�switchgear and switchboarddesigns.

Visit www.eaton.com/seriesnrxfor more information.

© 2008 Eaton CorporationAll Rights ReservedPrinted in USAPublication No. PA01301015E / Z7056May 2008

NEMA is the registered trademark and servicemark of the National Electrical ManufacturersAssociation. UL is a registered trademark ofUnderwriters Laboratories Inc. CSA is a registered trademark of the Canadian Standards Association. Modbus is a registeredtrademark of Modicon, a division of SchneiderElectric Industries SA.

Auxiliary Switches

1A/1B

Auxiliary Switch Tray

Electric Operator

Spring Release with Latch Check Switch/Ready to Close Switch

OvercurrentTrip Switches

Trip Unit

Key Lock

Handle

UVR

Shunt Trip

Accessory Tray

BREAKER AND ACCESSORIES

UL1066 RATINGS

Continuous Current Rating (Amps) 800Short Circuit Rating (kA)

254 Vac 85508 Vac 65635 Vac 42

Short Time Withstand (kA) 42

CIRCUIT BREAKER DIMENSIONS IN INCHES (MM) AND WEIGHTS IN LBS (KG)

Height Width Depth WeightFixed 3-Pole 13.18 (334.8) 8.25 (209.6) 7.15 (181.6) 33.58 (15.23)

4-Pole 13.18 (334.8) 11.00 (279.4) 7.15 (181.6) 44.40 (20.14)Drawout with Cassette 3-Pole 14.18 (360.2) 10.02 (254.5) 10.69 (271.5) 85.20 (38.65)

4-Pole 14.18 (360.2) 12.69 (322.3) 10.69 (271.5) 104.00 (47.17)

Arc Hood

Terminals

Secondaries

Rails

Shutters

GroundClip

RejectionScheme

CASSETTE/CRADLE COMPONENTS

Eaton CorporationElectrical Group1000 Cherrington ParkwayMoon Township, PA 15108United States877-ETN-CARE (877-386-2273)Eaton.com

UL 489 RATINGS

Continuous Current Rating (Amps) 800 1200Short Circuit Rating (kA)

240 Vac 85 85480 Vac 65 65600 Vac 42 42

Short Time Withstand (kA) 42 42

IEC 60947-2 RATINGS

Continuous Current Rating (Amps) 630 & 800 1000 & 1250 1600 Short Circuit Rating (kA) Icu Ics Icu Ics Icu Ics

240/254 Vac 85 50 85 50 85 50415/435 Vac 65 50 65 50 65 50690/725 Vac 42 42 42 42 42 42

Short Time Withstand = Icw (kA) 42 42 42 42 42 42