Technical FAQs

Ask a Question

If I disconnect the power supply to a Micrologic P or H trip unit, when power is restored, does the trip unit remember any of the fine adjusted settings?

Issue:
What happens if I remove power from a P or H trip unit?
Are finely adjusted settings deleted if power is disconnected that feeds a P or H trip unit?

Product Line:
Circuit Breakers

Environment:
Micrologic P and H trip units, used in Powerpact P, R, and Masterpact NT and NW circuit breakers

Resolution:
With Micrologic P and H trip units, "fine adjustment" settings are stored in non-volatile memory. This means that once a setting as been finely adjusted, the trip unit will remember the setting even if the power supply to the trip unit is disconnected.
Was this helpful?
What can we do to improve the information ?