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Micrologic on Powerpact H, J, L breaker comes up with four dashes on the display

Issue:
Micrologic display shows dashed lines instead of powering up with the Pocket Tester.

Product Line:
Circuit Breakers

Environment:
Powerpact H, J, L breakers with A or E Micrologic trip units

Resolution:
  • The protective function of the breaker is still operational and not compromised by the display issue.
  • The issue will not occur if the trip unit is energized before load is applied.
  • The permanent solution is to install a 24 Vdc power supply to power the trip unit.  Power trip unit before turning on breaker.
  • If using a pocket tester or UTA, power the trip unit, then turn on the breaker.
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