Can a close/trip coil be wired backwards?

A close or trip coil is designed to control mechanical mechanisms within circuit breakers and similar equipment by either closing or opening contacts. These coils function based on electromagnetic principles, and the direction of current flow is critical for the intended operation.

If a close or trip coil is wired in reverse, it can energize in the opposite polarity, which might not activate the mechanism as intended, leading to operational failure. This mismatch may prevent the coil from effectively performing its designed purpose, such as closing a circuit when it should or tripping a breaker.

While the coil may still receive power with reversed wiring, the mechanical or operational response may be inadequate or non-functional. Therefore, it's accurate to state that if wired backwards, the coil will not operate properly, illustrating the importance of correct installation to ensure proper system functionality.

In this case, the answer emphasizes the importance of wiring accuracy in electrical systems, particularly in safety-related components like circuit breakers where incorrect operation could lead to significant consequences.