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Masterpact
Center of Excellence

The dedicated Masterpact Resource Site of Leading UK switchgear experts PS Electrical

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We operate a 24/7 emergency call out service in support of air circuit breakers. If you're experiencing problems please call us directly

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Masterpact NW breaker

Masterpact NW

The Masterpact NW is a range of compact circuit-breakers first manufactured by Merlin Gerin, subsequently taken over by Schneider Electric. Following Schneider’s discontinuation of support for the NW’s predecessor, the Masterpact M, in early 2014, logic suggests that their support for the NW will also be withdrawn soon.

We shall continue to provide full support for Masterpact NW ACBs, in the form of servicing, replacement parts and consultancy, for the foreseeable future.

About

The Masterpact NW circuit breaker protects and controls low voltage distribution systems.

We supply and fit replacements for ALL Masterpact NW unit parts.
We export parts around the world and are happy to provide guidance on installation by your local electrician.

  • Nominal current:800A to 6300A
  • Breaking performance:65 to 150 kA at 220/415 V AC
  • Voltage rating up to 690 V
  • Two physical sizes from 800 to 6300 A
  • Four Micrologic control units enriched by measurement, energy management and network analysis functions.