Quote:
quote:Originally posted by Tom S.
Good question because people forget that:
Power (watts) = Current (amps) X Voltage (volts)
2500 watts = 208.33 amps X 12 volts
So the 12 volt supply need a high amperage breaker.
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Actually it is worst than that, due power lost in the process. From what I read, you should use 10 volts to take into account the lost thru the invert, thus 2500 watts / 10 Volts = 250 Amps. Breakers and wire should be sized for 20% more than expected load, 1.2 X 250 Amps = 300 Amps.