On our house we have a 3 pole / 3 phase main breaker but then everything else is 240v single phase inside the house, what sort of wiring connection happens between the 3 phase power and the rest of the house?
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Most homes in North America have 2 phase power. 3 phase power is normally just reserved for industrial and commercial usage. Power goes into the building on separate wires plus a neutral wire. e.g. if you have 2 phase power 3 wires will enter the house, 2 hot wires for each phase and 1 neutral wire. If you just need a single phase, you just take power from one wire.
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