400 amp service – image 3 – MassLandlords

An electric load calculation chart showing electric usage of a list of home appliances such as heat pump, stoves, dishwashers, refrigerators and more. The 3,063 square foot building would use 518 amps if all appliances were drawing full rated capacity at the same time. An additional 214 amps would be needed for air source heat pumps. An additional 189 amps would be needed for ground source.

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