These don't have a reset button, when they cool they reset. Never had a problem with them, used them on lighting circuits, electric winches, pretty much any thing electric. Most are 1" - 1 1/2" long x 1/2 wide & 3/4 deep. Came with mounting tabs or no tabs. Would usually run heavy wire,10 ga. or bigger from battery or connections to a multi terminal block for multi circuits and depending on circuits would determine whether breaker was before terminal block or after. On my bike, I installed an ampmeter and ran second set of wires from meter, one to breaker and then terminal block and other to make grd. lug. From the terminal block I power two relays for lights. I mounted front coil on a made bracket and made a separate bracket where coil mounted to carry terminal block and breaker.