When the push-button START switch is closed, what keeps the motor contractor energized after the START button is released?

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Multiple Choice

When the push-button START switch is closed, what keeps the motor contractor energized after the START button is released?

Explanation:
When you press START, the motor contor coil energizes, but the switch is momentary. The holding happens through an auxiliary contact of the M1 contactor. This auxiliary contact closes as M1 energizes and forms a path that bypasses the START button, so current continues to flow to the M1 coil even after you release the button. That creates a self-latching (holding) circuit that keeps the motor running. If you press the stop button or an overload trips, that path is opened and the motor stops. The overload relay protects the circuit but isn’t what keeps it energized.

When you press START, the motor contor coil energizes, but the switch is momentary. The holding happens through an auxiliary contact of the M1 contactor. This auxiliary contact closes as M1 energizes and forms a path that bypasses the START button, so current continues to flow to the M1 coil even after you release the button. That creates a self-latching (holding) circuit that keeps the motor running. If you press the stop button or an overload trips, that path is opened and the motor stops. The overload relay protects the circuit but isn’t what keeps it energized.

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