Air Circuit Breaker : M-Pact Plus Frame 1 &2 - Fixed Pattern

Technical Data

Designed to match the most demanding requirements for rapid detection and safe interruption of faults. Our latest generation of M-PACT PLUS ACB and associated MPRO protection relay incorporate a formidable array of circuit protection and system management. Fixed pattern breakers incorporate a trip free, stored energy mechanism that can be manually or electrically charged via a motor mechanism.


  • Compliance with IEC947-2, BSEN60947-2 & VDE0660 part 101 & 107
  • ASTA, KEMA and LOVAG certification to IEC947-2 & BSEN60947-2
  • Rated short circuit performance from 50 kA to 80 kA (Icu=Ics=Icw) @ 415v
  • Nominal ratings from 400A to 4000A
  • 2 Frame Sizes: Frame 1 (400A to 2500A), Frame 2 (400A to 4000A)
  • 3 and 4 pole available in both fixed and withdrawable pattern
  • Common height and depth for complete range
  • Common accessories designed for simple installation
  • Built-in safety features provided as standard
  • Superior circuit protection integral to MPRO relay including combination of unrestricted, restricted and standby earth fault
  • Communications facility incorporating MODBUS protocol
  • Auxiliary contacts 5 n/o + 3 n/c provided as standard
  • Ingress Protection - IP20 secondary contacts and IP43 door seal provided as standard with enhanced IP54 door option available
  • 2 or 3 way mechanical interlocking available in cable and rod design


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