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Can you install 3 pole branch (feeder) breakers in a 3 phase MPZ and MPZB Mini Power Zone?

Issue:
Can you install 3 pole branch (feeder) breakers in a 3 phase MPZ and MPZB Mini Power Zone?

Product Line:
Mini Power Zone

Environment:
MPZ and MPZB Mini Power Zone

Cause:
Product features

Resolution:
Yes they can use 3 pole breakers in both the MPZ and MPZB Mini Power Zones. There is some published misinformation that just states 1 or 2 poles
but all three phase MPZ and MPZB accept 3 pole breakers.