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  1. cmrobin21

    480 v. 277 V clarification?

    Thanks guys, WBD, you hit the hail right on the head. I have a few 3 phase loads, but what I've read tells me it can be either 277 or 480. I guess I'm looking to verify the voltage with no vendor info, looking only at the panel schedule. I contend that it's not really possible since...
  2. cmrobin21

    480 v. 277 V clarification?

    Hello, I'm a relative newbie in the industry. I often look at panel schedules and wonder what the actual voltage of certain equipment is. Say I'm looking at a panel schedule and I see equipment being called out as 3 phase, is this automatically 480V? Would 2 phase be 277V? I would think that...

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