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A customer with a Masterpact breaker with STR58U is having nusiance tripping with ground fault trip setting in red zone.

Install a separate 24VDC power source and attach negative to terminal F1 and positive to F2 on the breaker. This will externally power the trip unit and allow for proper function of the ground fault feature when it is set in the red zone.

CTA-ID : 2025865
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