Eaton offers a low voltage power (air) circuit breaker with:

• Two-stage stored energy mechanism with remote close capability

• Comprehensive global certifications

• High interruption and short-time withstand performance

• Comprehensive electronic trip unit innovation, including Eaton’s Arcflash Reduction Maintenance System�

• Multiple breaker-mounted communication protocol options

Series NRX is available as one compact package, easily integrated into your IEC or UL� switchgear and switch-board designs.

Visit www.eaton.com/seriesnrx for more information.

A compact, globally certified low voltage power (air) circuit breaker

Meeting Your Application Needs with Series NRX

Comprehensive compliance to world standards and certifications. Take orders from and ship to anywhere.

Global standards and certifications compliance with UL 1066, UL 489, ANSI C37.51, ANSI C37.20.1, ANSI C37.50, ANSI C37.17, ANSI C37.13, NEMA� AB1 and AB4, NEMA SG3, CSA� 22.2, NMX J2-266-ANCE, 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. Take on higher density and smaller enclosure switchgear and switchboard opportunities using common design.

Fits within existing UL 1558, UL 891 and IEC structures designed for competitive breakers. The one frame size reduces drawing conversion, structure integration time and parts inventory.

High endurance mechanism provides extended operational performance. Enable lower total cost of ownership via lower inspection/maintenance costs.

The unique two-stage stored energy mechanism with remote close capability increases contact pressure to lower contact resistance for improved thermal performance, and has been tested to 20,000 mechanical and 10,000 electrical operations. The wider contact gap improves fault interruption and open circuit isolation capabilities to extend contact life.

Complete range of trip unit options and communication protocols for evolving application needs. Use one frame for different applications requiring basic to all-inclusive trip unit functions and programs.

Three trip units offer a full range of protection needs — from LSIG with ZSI, metering, protective relays and harmonics, to waveforms and the Arcflash Reduction Maintenance System. When communications are required, breaker-mounted modules for Modbus� and Eaton’s INCOM� save space and time as compared to panel-mounted modules.

Multiple cable and bus connection options enable quick and flexible integration. Turn jobs around faster.

Options include cable termination for front or rear bus connection, drawout or fixed-mounted styles. Tension clamp secondary contact terminations allow for easy installation and quick connection.

Easily accessible during switchgear and switchboard scheduled maintenance. Get back up and running quickly.

The design of the breaker and cassette enables full use of the handle and cassette rails with a gloved hand, enabling electricians to remain in arc flash prevention gear with complete ease of movement. The breaker handle’s ergonomic design maximizes functionality and leverage across seven complete strokes to charge the breaker quickly and easily.

Series NRX Power (air) circuit breakers

Eaton CorporationElectrical Sector1111 Superior Ave.Cleveland, OH 44114United States877-ETN-CARE (877-386-2273)Eaton.com

© 2011 Eaton CorporationAll Rights ReservedPrinted in USAPublication No. PA01301015E / Z11085April 2011

Eaton is a registered trademark of Eaton Corporation.

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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

UL 1066 Ratings

Continuous Current Rating (Amps)

800

Short-circuit rating (kA) 254 Vac 85 508 Vac 65 635 Vac 42Short-time withstand (kA) 42

Arc Hood

Terminals

Secondaries

Rails

Shutters

GroundClip

RejectionScheme

Cassette/Cradle Components

UL 489 Ratings

Continuous Current Rating (Amps)

800 1200

Short-circuit rating (kA) 240 Vac 85 85 480 Vac 65 65 600 Vac 42 42Short-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 50 415/435 Vac 65 50 65 50 65 50 690/725 Vac 42 42 42 42 42 42Short-time withstand = Icw (kA) 42 42 42 42 42 42

Circuit Breaker Dimensions in Inches (mm)/Weights in Lbs (kg)

Number of Poles Height Width Depth Weight

Fixed Three-pole 13.18 (334.8) 8.25 (209.6) 7.15 (181.6) 33.58 (15.23) Four-pole 13.18 (334.8) 11.00 (279.4) 7.15 (181.6) 44.40 (20.14)Drawout with cassette Three-pole 14.18 (360.2) 10.02 (254.5) 10.69 (271.5) 85.20 (38.65) Four-pole 14.18 (360.2) 12.69 (322.3) 10.69 (271.5) 104.00 (47.17)