M mrjerry2002 Member Location augusta, ga Apr 9, 2015 #1 Does the nec require an outside disconnect for a 400 amp 120/208 volt, 3 phase service? We will be installing 2-200 amp panels inside the building. The power company is providing a 400 amp transocket.
Does the nec require an outside disconnect for a 400 amp 120/208 volt, 3 phase service? We will be installing 2-200 amp panels inside the building. The power company is providing a 400 amp transocket.