Product Description

Masterpact NW – High current air circuit breakers from 800 to 6300 A

Nominal current: 800 to 6300 A
Breaking performance: 42 to 150 kA at 220/415 V AC
Voltage rating: up to 1000 V
2 physical sizes from 800 to 6300 A
2 pole pitches of 115 and 230 mm
3- and 4-pole versions
5 types of Micrologic control units with added measurement, energy-management and network-analysis functions
Earth leakage protection built into the control unit
Wide range of common auxiliaries and accessories interchangeable on site
Compliance with international standards IEC 60947-1 and 2, IEC 68230 for type 2 tropicalization, UL489 and ANSI/UL1066
CCC and GOST certifications
Compliance with specifications of marine classification bodies: Bureau Veritas, Lloyd’s Register of Shipping, Det Norske Veritas, etc.

Benefits
The worldwide benchmark for high-current circuit-breakers
The Masterpact NW circuit-breaker range features optimised dimensions: not only is it more compact, but even better two sizes are sufficient to cover requirements from 4000 to 6300 A.
At a time when installations are becoming increasingly complex, Masterpact NW enables standardisation of electrical switchboards by providing unrivalled simplicity in terms of both choice and installation.
Applications

General Applications

Protection, measurement and communication of LV electrical networks
Generator protection
Motor protection

Special applications

DC networks
Protection of installations in highly corrosive industrial environments
Mines (special 1000V version of NW)
Navy
Earthing switch
High short-circuit current limiting (ultra-rapid Masterpact UR)