Takashimukaiys

Four Wire Delta Circuits Continental Control Systems Llc  The 1/8 volt 3 phase feed (8 volts hot to hot) does not have a high leg so the feed wires can be connected up top in any order The 1/240 volt 3 phase high leg feed wires have to be arranged in the correct order at the top of the panel in order that the 1 volt hot to neutral legs match up with the breaker slots down belowThe long answer is the following Single phase power that typically comes to a home has two hot legs of 1v each You can use either leg to power 1v devices or combine both hot legs to power a 240v appliance or motor (eg for a wellpump) This power is all 60Hz Three phase power has three hot legs, each of 1v 120/208 panel wiring