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  • Users: Phlapjak
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  1. Phlapjak

    Wire Size for MV Switchgear Control Circuits

    MV Switchgear vendors will install 14 AWG wire for circuit breaker close/trip circuits that are fused at 30A. If you wire in an aux contact from the field into the close/trip circuit, do you have to use 10 AWG wire for the field aux contact so that it meets NEC requirements for 30A fuse?

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