Welcome to the Schneider Electric Website

Welcome to our website.

Select your location

Welcome the the Schneider Electric French website. It looks like you are located in the United States, would you like to change your location?

Traduisez en francais

ANSI Certified Masterpact Circuit Breakers

800 to 6000 A

The ANSI Certified Masterpact® NT and NW Circuit Breakers are designed to protect electrical systems from damage caused by overloads, short circuits and equipment ground faults.

Schneider Eletric
ANSI Certified Masterpact Circuit Breakers
  • Features

    ANSI Certified Masterpact NT series features

    • Available in frame ampere rating up to 800A
    • Interrupting Rating 42kA at 254Vac, 42kA at 508Vac
    • Available in fixed and drawout constructions
    • Rotated rear terminals (rotatable from horizontal to vertical and vice versa) and front-connected terminals are available

    ANSI Certified Masterpact NW series features

    • Available in frame ampere ratings up to 4,000A (W-frame) and 6000A (Y-frame, wide-construction)
    • Interrupting Ratings up to 200kA at 254Vac, 200kA at 508Vac, 130kA at 635Vac
    • Available in fixed and drawout constructions (Drawout in W-frame available only up to 3,200A)
    • Rotated rear terminals (rotatable from horizontal to vertical and vice versa) and front-connected terminals are available
    • Arc flash limiting (L1F) Masterpact™ NW feeder breakers available in 800, 1,600, and 2,000 ampere ratings
    • Drawout Masterpact NW are available in ArcBlok™ construction. The ArcBlok™ design extinguishes the arc at the rear of the circuit breaker cell reducing the damage and eliminating the need for special seals on the cell door

    Common features

    • Rated for AC voltage systems through 635V
    • Cradle position indicator: connected, test and disconnected
    • Simple, visual contact wear indicators available
    • Full complement of field-installable accessories common to all standards available for flexibility and helps in reducing inventory holding cost
    • Four interchangeable and upgradeable Micrologic trip unit models to choose
    • Available Direct Ethernet Modbus TCP connection to each Circuit Breaker (IP address per Circuit Breaker)
    • Available EcoStuxure® power metering and monitoring capabilities
    • Meets UL 1066 and ANSI C37 standards

    How to Videos

    Square D Masterpact Installation Video – Part 1

    Square D Masterpact Installation Video – Part 2

    Masterpact NW Padlock Attachment | Schneider Electric Support



    Benefits

    • Reliable circuit protection for your application
    • Flexible and simple offer, with proven performance
    • Save time in electrical design, mounting, and wiring
    • Tackle last minute changes with field installable accessories

    Applications

    • Electrical Distribution Equipment
    • Commercial Buildings
    • Industrial Buildings
    • Oil & Gas
    • Water WasterWater
    • Healthcare Facilities
    • Data Centres
    • Educational Campuses

Reach Us

Have a question, complaint or is there some feedback you’d like to send us to make your experience with Schneider Electric better?

Where to Buy

A simple tool to locate easily your nearest Schneider Electric distributor

FAQ's

Start here for access to our Knowledge Base to get answers to over one hundred thousand questions online in seconds.