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Can the trip unit be replaced on electronic trip breaker with a Micrologic Series B trip unit?

Issue:
Can the trip unit be replaced on electronic trip breaker with a Micrologic Series B trip unit?

Product Line:
Legacy Series Electronic Trip breakers with Series B Micrologic trip units.

Environment:
This applies to all Series B Micrologic trip units except those installed in SEF/D breakers.

Cause:
Need to replace a Series B Micrologic trip unit.

Resolution:
Series B Micrologic trip units installed in the legacy L, M, N, P breakers are not replaceable. Only those trip units installed in SEF/D breaker can be replaced, however the Series B trip unit can only be replaced if it had a Series B trip unit, Series B trip units cannot be installed to replace older trip unit series.  All of these breakers are now obsolete and need to be replaced with PowerPact electronic trip breakers.
Unless ordered as a field interchangable trip unit breaker PowerPact H, J and L frame are not replaceable (I-Line H, J and L frame can not be ordered with field interchangeable trip units). PowerPact P, R and NT, NW trip units are replaceable. PowerPact M trip units and PowerPact P and R frames with the Basic ET1.0I trip units are not replaceable.


CTA-ID : 460
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