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What does the FA suffix mean on PowerPact circuit breakers?

Meaning of -FA suffix on PowerPact Circuit Breaker

Product Line:
Circuit Breakers

Applies to Powerpact M, P and R Frame

On a Powerpact M, P or R frame breaker, suffix 'FA' indicates the breaker has an 110-130Vac/dc UVR undervoltage trip, PLUS an adjustable time delay that can be set for 0.5, 0.9, 1.5 or 3.0 seconds before trip.
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