I'm a bit confused about how the main switch works on our electrical switch board. Wondering if someone can help clarify for me?
Currently I have a Hager SB 180T main switch.
Theoretically, what happens if my load exceeds 80A? Will this switch just trip and turn off, and I just have to turn it on again? Does it work like a breaker? Or will it blow or fuse and have to be replaced? Or something else?
What is the difference between a main switch and a normal circuit breaker (other than the ampage rating)?
BTW I'm not planning on changing any switches myself (if necessary, I would get an electrician to do that), just trying to understand how it works.