In a reversing starter, what happens to the main contacts when the forward contacts close?

In a reversing starter, the operation of the forward contacts is designed to control the direction of an electric motor. When the forward contacts close, it completes the circuit for the motor to run in its designated forward direction.

In this scenario, the main contacts do not become interchanged or shorted; instead, the operation of the forward contacts allows two line wires to remain closed in relation to the motor. During this process, the reversing mechanism ensures that the opposing contacts do not engage, which means that the circuit elements intended for reversing are kept open and deactivated.

This allows for safe and correct operation, as closing both sets of contacts simultaneously could lead to short circuits or unintended motor behavior. Understanding this operation is crucial for implementing safe motor control and ensuring proper direction during operation.