In article , Harold & Susan Vordos says...

Phases A and C to neutral yield 120V, phase B to neutral yields
208V. Delta panels *do* (or can) have 120 volts. My shop is wired three
phase delta and has 5 wires, four conductors ( A, B and C phase, plus
neutral) and one ground. One avoids using the B phase for 120V, obviously.

You are now describing wild-leg delta, with one side centertapped
to ground. Not all delta service comes that way, I think.

Jim

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