Quote:
Originally Posted by churd9
On 30 amps you have 30x110or 3300 watts
On 50 you have 50x220 or 1100 watts so you can see you have enough to run more than 2 ac's
A 1500 btu ac uses around 1600 wats
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1600 watts converts to approx 14.5 amps (I(A) = P(W) / V(V)). Running 2 ACs on 30 amp service will trip the breaker if anything else is running. Also at startup of the AC compressor the current draw will be higher. Some rooftop AC units can draw as much as 19 amps while running.