The way the electrician wired this circuit breaker box is a thing of How to wire 277v & 480v, 1 & 3-phase main service panel? How to wire 3 pole circuit breaker
The way the electrician wired this circuit breaker box is a thing of
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How to Wire 277V & 480V, 1 & 3-Phase Main Service Panel?
High Leg Delta - Wiring 240V, 208V & 120V, 1 & 3-Phase Panel
How to Wire 120V & 208V Main Panel? 3-Φ Load Center Wiring
Subpanel / RPC panel / 3 Phase Load Center Wiring
How to Wire 3 Pole Circuit Breaker