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3 phase ac unit electrical wiring

3 phase ac unit electrical wiring

3 phase ac unit electrical wiring

(OP)
do these types of units require a neutral wire as well as 3 hot wires? don't they have devices in them that need 120 volt too?

RE: 3 phase ac unit electrical wiring

Some do, some don't.  That's what nameplates and installation instructions are for.

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