How many wires connect in a two pole breaker?

A two-pole breaker typically connects to four wires: two hot wires, one neutral wire, and one ground wire. The two hot wires are usually connected to separate phases of a split-phase electrical system, allowing the breaker to handle 240 volts. The neutral wire is connected to the load if required, and the ground wire is for safety. In some applications, the neutral may not be used, especially in certain types of equipment.