yankeeman411
Member
- Location
- nj
Quick question guys, i have a 208/120 feed to a step up transformer to 277/480. The 480 is needed for a elevator controler locator in a machine room 5 floors up. The print calls for a disconnect in the machine room near the controller room. Do i also need to put a disconnect near the transformer on the secondary side. The panel feeding the transformer is 15 ft away, do i need a disconnect on the primary or is the panel sufficient?