Circuit Protection

Masterpact NT Circuit Breaker

Masterpact NT Circuit Breakers

A full-featured power circuit breaker is the smallest footprint available on the market today - 70% smaller than the Masterpact NW circuit breaker. The Masterpact NT Circuit Breaker (800 to 1600 A) is designed to protect electrical systems from damage caused by overloads, short circuits and equipment ground faults. It incorporates the latest advances in circuit breaker technology.

The Masterpact NT Circuit Breaker is the latest addition to the Masterpact circuit breaker line. It is a fully tested, full-featured power circuit breaker in the smallest footprint available on the market today and is 70% smaller than the Masterpact NW circuit breaker. The Masterpact NT Circuit Breaker (800 to 1600 A) is designed to protect electrical systems from damage caused by overloads, short circuits and equipment ground faults. It incorporates the latest advances in breaker technology including:

  • Selection of four interchangeable Micrologic® Trip Units with PowerLogic® power metering communications and monitoring capabilities.
  • Field-installable devices (without circuit breaker adjustment) including trip units, sensor plugs and most accessories.
  • Drawout breakers with four racking positions (connected, test, disconnected and removed) with status indicator on cradle.

The Masterpact NT Circuit Breaker is manufactured and tested in accordance with UL 489, UL 1066, ANSI and IEC 60947-2 standards, providing customers with unmatched application flexibility. Key features include:

Masterpact NT ANSI-Certified/UL 1066 Listed Power Circuit Breaker
  • 70% smaller than standard sized 800 A to 3200 A Masterpact NW
  • Complete offering through 50kAIR at 508 V
  • 800 A frames available
  • Rated for all AC voltage systems through 508 V
  • Can install up to eight 800 A breakers in one 30-in. section of  Power-Zone® 4 Switchgear
  • Short-time withstand ratings up to 42K amperes
Masterpact NT UL 489 Listed Insulated Case Circuit Breaker
  • 70% smaller than standard sized 800 A to 3000 A Masterpact NW
  • Complete offering through 100kAIR at 480 V
  • 800 A to 1200 A frames available
  • Rated for all AC voltage systems through 600 V
  • Can install up to eight 1200 A breakers in one 30-in. section of  QED-6 Switchboard
  • Short-time withstand ratings up to 35K amperes
Masterpact NT IEC 60947-2 Power Circuit Breaker
  • 70% smaller than standard sized 800 A to 4000 A Masterpact NW
  • Complete offering through 130kAIR at 440, 150 kAIR at 220/415 V
  • 800 A to 1600 A frames available
  • Special 1000 VAC rated circuit breakers available
  • Small design allows for increased density installations in IEC equipment
  • Short-time withstand ratings
    up to 42K amperes

Technical Data  |  Brochures  |  Online Catalog  |  Insulated Case Circuit Breakers

Spotlight:

A geartalk Presentation of the
MASTERPACT® NT Series Circuit Breaker

In this edition of geartalk, our Product Manager, Alan Kuntz, and Communications Manager, Dominique Duryea, discuss the MASTERPACT NT Power Circuit Breaker. Run length is 7.5 minutes.

The MASTERPACT NT Circuit Breaker is the latest addition to the MASTERPACT circuit breaker line. It is a fully tested, full-featured power circuit breaker in the smallest footprint available on the market today. Click here to view the MASTERPACT NT Webcast.

 Learn More:

Download the Masterpact NT ANSI®-Certified/UL 1066-Listed Power Circuit Breakers handout.

Click here to go to the MASTERPACT NT Circuit Breaker product page.