Comment Re: Coherence (Score 1) 36
Motor starting inrush current is massive compared to the running current, but it happens so briefly that it *usually* doesn't matter. An AC unit that runs at 8-9 amperes may take 90-100 amps or more to start, causing blown breakers, or even main breakers if the system is being taxed by another high current job like running an oven or charging a car. Nobody runs a 100 amp circuit to an AC system that calls for a 15 amp circuit, and neither does the unit have lugs big enough to accommodate that kind of wiring. If it causes problems there are workarounds like soft start controllers, or motor-rated breakers that better tolerate short spikes of high current.