in location

OR

I'm looking for

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

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

    Explain "instantaneous override" and "close and latch" ratings.

    Issue:
    Explain "instantaneous override" and "close and latch" ratings. What do they mean?

    Product Line:
    Circuit Breakers

    Environment:
    Masterpact and Powerpact

    Resolution:
    "Instantaneous override" and "close and latch" are fixed trip settings to protect the breaker when there is a very hight fault condition.  These settings are usually set higher than the standard instantaneous setting and function without regard to any other settings.

    "Instantaneous override" is a fixed trip setting to open the breaker quickly (under 25mS) in the event of very large fault which exceeds the instantaneous override trip value.

    "Close and latch"  is a fixed trip setting while CLOSING the breaker and remains in effect for 20mS after closing the breaker.  Close and latch is set lower than instantaneous override, to protect the breaker in the event of CLOSING the breaker on an existing fault condition.   After 20mS the breakers reverts to the "instantaneous override" setting.
     

    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