How to Install a Double Pole Circuit Breaker Step 1 – Turn Off Electricity. Before you start, make sure that the electricity source on the breaker panel is turned off. Step 3 – Strip Wires of Double Pole Circuit Breaker. Take the wire of the double pole circuit breaker. Step 4 – Install Double Pole Circuit Breaker. Step 6 – Return Cover of Breaker Panel. Click to see full answer. Regarding this, can I use half of a double pole breaker?No. The breaker must be able to trip before the wires connected to it can become damaged. A 2-pole breaker only loaded on one half is likely to have too much mechanical resistance to do that. Either run a 4-wire 240V supply or use a single-pole breaker.Likewise, is a double pole breaker double the amps? There are two types of standard breakers: single-pole and double-pole. Single-pole breakers are rated for 120 volts and 15 or 20 amps. Double-pole breakers, on the other hand, are typically rated for 20 to 60 amps and supply 240-volt power to large appliances, like electric dryers and ranges. Thereof, what is a two pole breaker? Double-pole breakers have two hot wires that are connected by a single neutral wire. That means if there’s a short circuit on either of the poles’ hot wires, both trip. These breakers can be used to serve two separate 120-volt circuits or they can serve a single 240-volt circuit, such as your central AC’s circuit.What is a double pole 30 amp breaker used for?You can use a double breaker as two single breakers to supply 120 volt to two separate circuits.. If you have a 30 amp double breaker, you can connect a single 10 gauge hot wire and it will work for 120 volt. You would NOT connect a 12 or 14 gauge wire to the 30 amp breaker or it creates a fire hazard.