SHOCKY61
Member
- Location
- san antonio texas
i have a 480 volt 3 ph service with a 800 amp main disconnect 5 metered grouped /multi meter module. This grouped meter module has (4) 200 amp meters and disconnect( for individual office rentals ) and (1) 125 amp meter and disconnect( for house lights and outdoor area lights ) Do i size the trans formers using the service amperage of 800 amps in the calcalation formula or the load center amps of 200 when stepping down the voltage to 208v / 120v to each office.