Three Phase Breaker box and how it holds 1, 2 or 3 pole breakers

The three hot wires are A, B and C . A 120 volt single phase circuit uses one breaker "space" on this box that is 1 inch wide.

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Single & 3 Phase Power

Electricity is connected at either 230V AC single phase or 400V AC 3 phase. The 230V single phase is what we typically have inĀ ...

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