Discover our Clipsal Smart Home packages as seen on the Block

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 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

    Is it possible to use the Micrologic trip unit on a Powerpact or Masterpact circuit breaker to provide phase loss, phase reversal, or phase imbalance protection?

    Issue:
    Is it possible to use the Micrologic trip unit on a Powerpact or Masterpact circuit breaker to provide phase loss, phase reversal, or phase imbalance protection? Might be specifically looking at the Power and Harmonic Micrologic trip units, which have some features that seem similar to phase loss proteciton

    Product Line:
    Powerpact, Masterpact, Micrologic, Zelio

    Environment: 
    Molded Case Circuit Breakers, Insulated Case Circuit Breakers, Phase Failure Relays

    Cause:
    Application Assistance

    Resolution:
    No. While the Power and Haromonic trip units do have some voltage protection features, they cannot be used as phase loss protection, as neither the Minimum Voltage Protection or the Voltage Unbalance Protection can detect the loss of a phase. 

    If phase loss protection is needed, here is what is required:
     - A Phase Measurement Relay with the desired protection features
     - A breaker or switch with a shunt trip to open and close the circuit

    An undervoltage relay could also be used to detect a total power loss or drop, but it would at most be able to monitor voltage on two phases. If there was a voltage loss/drop on the third phase, the undervoltage trip would be unable to detect it.

    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