S Sparky5150 Member Sep 3, 2008 #1 Does a 480 volt 1200 amp breaker at the generator that backs up an entire building as optional branch need to be GFI protected? Thanks!
Does a 480 volt 1200 amp breaker at the generator that backs up an entire building as optional branch need to be GFI protected? Thanks!
mdshunk Senior Member Location Right here. Sep 3, 2008 #2 I'm not sure there's any way around not needing GFP at that ampacity.