Offer Safety Notice

Safety Alert for MasterPacT NW 800-6300A Circuit Breakers
Includes inspection procedures and FAQs. Read the offer safety notice here.

MasterPacT™ NT and NW circuit breakers protect electrical systems from damage caused by overcurrent events. In addition to the traditional features of power circuit breaker, MasterPacT NT and NW ranges offer built- in communications and metering functions.

The range of MasterPacT NT/NW includes 2 families and 3 frame sizes

MasterPacT NT, the world’s smallest true power circuit breaker, with ratings from 600 to 1600 A
MasterPacT NW, in two frame sizes, one from 800 to 4000 A and the other from 4000 to 6000 A
Drawout or Fixed Mount, 3-Pole (3P) or 4-Pole (4P) Construction
Enhanced coordination by their adjustability, LI, LSI and LSIG with integral ground-fault protection
High interrupting ratings and withstand ratings
Communications and monitoring capability
Field-Installable trip units, sensor plugs and accessories

MasterPacT NT and NW - UL/ANSI

LV power circuit breakers from 800 A to 6000 A