Two contactors are interlocked to control forward and reverse rotation of motor Contactor interlock: KM1 coil loop is connected in series with the normally closed auxiliary contact of KM2, and KM2 coil loop is connected in series with the normally closed contact of KM1. When the KM1 coil of the forward contactor is energized, the auxiliary normally closed contact of KM1 disconnects the KM2 coil circuit. If the KM1 is energized and closed, the KM2 must be powered off and released, and its auxilia
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