Hello all.
How does one determine whether it is feasible to install a 100A circuit breaker in a panel? I'd like to have 80A charging with an HPWC, but I don't know how to determine the biggest breaker that can be (is allowed to be) installed in the panel. The service here is 200A, and there's actually two panels. My understanding is that there is a big breaker on the input, so if the whole house exceeds the service limit it will trigger, and thus you can have circuit breakers whose capacity in total is much greater than the total available. This makes sense as it's highly unlikely that you'll be drawing the maximum, or anything close to it, on all circuits at the same time. But with 80A going to the car and the possibility of two ovens, two clothes washers, etc. I'm not sure 200A is enough.
Or is this something that can only be answered by an electrician looking at the specific panel?
(FWIW the HPWC could be installed just on the other side of the wall that the panel is on. i.e. the wire run would be very short.)
How does one determine whether it is feasible to install a 100A circuit breaker in a panel? I'd like to have 80A charging with an HPWC, but I don't know how to determine the biggest breaker that can be (is allowed to be) installed in the panel. The service here is 200A, and there's actually two panels. My understanding is that there is a big breaker on the input, so if the whole house exceeds the service limit it will trigger, and thus you can have circuit breakers whose capacity in total is much greater than the total available. This makes sense as it's highly unlikely that you'll be drawing the maximum, or anything close to it, on all circuits at the same time. But with 80A going to the car and the possibility of two ovens, two clothes washers, etc. I'm not sure 200A is enough.
Or is this something that can only be answered by an electrician looking at the specific panel?
(FWIW the HPWC could be installed just on the other side of the wall that the panel is on. i.e. the wire run would be very short.)