Well its a circuit breaker. As long as it does that its a great product! But this type specifically is great because it is 1/2 the size of a normal 2" breaker. Only 1" for a 2 pole breaker. It frees up space in your panel for more devices. One thing that's not good though is due to the design it has to go right in the middle of the space required for the full sized breaker. So you can't load the panel up with 1 2-pole breaker after another, They can be flanked with other single pole thin breakers though.