I know that more goes into it than just the size of my mains (wire gauge, etc). but from the below image, would this generally mean that I have 200 amp service or 100 amp?

My Panel


It's 100 amp service.

Confusing the issue does not help matters. (Virtually) all US household service is supplied at 240V, so whether the service is 30, 60, 100, 125, 150, 200 or 320, it's that amperage at 240 Volts. It is NOT, in fact 120V at 200 amps, because you cannot run a 200 amp 120V load off a 240V 100 amp feed - you can run a pair of 120V 100 Amp loads, but not a 200 amp 120V load - the "pair" are opposite phase and cannot be combined like that.

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.