M-Pact Plus frame 3 fixed pattern air circuit breakers incorporate a stored energy mechanism. The spring can be charged either manually or electrically via a motor operator that is automatically activated after the closing operation.

IP43 front panel and door escutcheon seals are standard features. For enhanced protection, an optional IP54 door panel is also available.


  • Trip-free operating mechanism
  • Positive ‘ON/OFF’ contact indication
  • Mechanical/electrical anti-pumping device
  • Charging spring status indication
  • Manual spring charging handle
  • Auxiliary switches 4 NO and 6 NC, 10A 500V (standard)
  • Mechanical trip alarm switch (1 NO) (potential free)
  • Padlockable push-button cover
  • Mechanical cable interlocking (optional)
  • Termination : horizontal
  • Electrical spring charge indication
  • Easy replacement of main and arcing contacts