in location


I'm looking for

  • Wholesalers
    • Uncheck All Check All
    • Expand
    • Expand
    • Expand
    • Uncheck All Check All
  • Switchboard Manufacturers
    • Uncheck All Check All

The best way to see what Clipsal electric products can do for your home is seeing them in action at a Clipsal Powerhouse Display Centre.

Product stock may vary according to location. If you're after a specific product range, please check with your chosen location before visiting.

10 Results
    Load More Load Complete
    Change Location

    What is the rated Short-Circuit Making Capacity (Icm) value for Compact NS MCCB?

    The rated Short-Circuit Making Capacity (Icm) for Compact NS Moulded Case Circuit Breaker is as per the table attached and is dependent on the Short-Circuit Breaking Capacity (Icu).

    (Note: Table is extracted from IEC 60947-2 document)

    For NS 100 N, 100A MCCB at 440V, Short-Circuit Breaking Capacity (Icu) = 35 KA then, Icm = 2.1 x Icu = 73.5 KA. 
    According to the IEC 60947-2, if the Rated Making capacity (Icm) is equal to the value specified in the IEC paragraph, it is not imperative to have a marking on the circuit breaker.
    This is the reason for not publishing this information concerning the marking on the circuit breaker and the values in catalogue.
    Icm can be calculated by the instruction as per the table provided in the IEC document.

    Didn’t find what you were looking for?

    Try Searching Again View Our Categories

    Need further assistance?

    Our Customer Care department provides total customer service solutions for our residential, industrial and commercial applications.

    Get Assistance