Technical FAQs

Ask a Question

My main circuit breaker will not reset. What is wrong? It has tripped and I just can't get it to reset. QB, QD, QG, QL

If you have one of the below breakers that you cannot reset, and it seems that something is wrong with it, then please read continue reading.

Product Line:
This information applies specifically to Powerpact QB, QD, QG and QL circuit breakers
See the picture below to help determine if this FAQ applies to your breaker.

If a QB, QD, QG or QJ breaker has tripped, it must first be reset before it can be closed. "Reset" means the breaker handle must be pushed from the TRIP position to the OFF position. During the reset process, mechanical parts inside the breaker are moving, AND very strong trip springs are being compressed. So as you reset the breaker and are pushing on the handle, you are feeling the strong force of those springs being compressed (approx. 35 pounds force). Almost all breakers operate in this manner. The reason the QB, QD, QG and QJ breakers seem more difficult to reset is mainly because of the intentionally shorter handle, which is done to avoid interference with panel doors. This is accentuated if the breaker is not mounted.

So if you have a QB, QD, QG or QJ breaker and it feels like it "won't reset", use both hands and press a little harder on the handle, until the handle almost touches the breaker case in the OFF position. Just at that point, the breaker will reset. You can now close the breaker.

Was this helpful?
What can we do to improve the information ?