277V requires half the breaker slots that 240V does. (If single pole = half double pole)
Out of curiousity, is that because 277V is taking 1 leg of 3-phase power as opposed to 2x "halves" of split phase power to make 240V? And if so, is balancing the 3 legs of 3-phase crucial when dealing with single power sources (like PSU's)?
yeah since ur only pulling form 1 leg u only need a single pole breaker , its not critical to balance the load between all 3 phases on my setup is what the electricall guy told me but my breaker panel rotates which pole leg each single pole breaker hooks into as u install them into the panel.
like this
breaker 1 - leg 1
breaker 2 - leg 2
breaker 3 - leg 3
breaker 4 - leg 1
breaker 5 - leg 2
breaker 6 - leg 3
breaker 7 leg 1
etc etc
we just ran all the main wires today and should be hooking them up to power in a lil while after lunch ill take pictures when its done today , the only think im missing is my plugs and outlets , i may try to wire up a single 110 outlet to the 277 just so i can plug in a single psu and see how it does , if not i have to wait till friday or monday for that stuff to be delivered to wire up all the lines
i might have some 240v stuff laying around that would be safer to use vs the 110 outlet for testing the setup today
