On a split phase system where you need 240 volts a two pole breaker is used. L1 to N will give you 120 volts for one circuit. L2 to N will give you 120 volts for one circuit. L1 to L2 will give you 240 volts for one circuit.
A two pole 20A circuit breaker can be used for any 240V load that requires 20A, with supply conductors no smaller than 12AWG. Since a clothes dryer typically requires 30A, and a range 40A to 50A, a 20A 240V circuit could probably be a window air conditioner, pool pump, or some other 20A 240V load.
This is a device that monitors either two separate, but related, circuits or one higher voltage single circuit for overcurrent conditions. American household circuits use both 120 volt and 240 volt wiring. For example, most electric water heaters and electric stoves are designed for 240 volts, although the stove might have a light bulb or fan that uses 120 volts. Both conductors must be disconnected together even if for some reason an overcurrent only occurs in one conductor. Therefore, most 2 pole circuit breakers have a linked handle or other method to make sure both poles turn off simultaneously.
A 2 pole 30A circuit breaker is a device that is used to supply a 240 volt power source for a device that operates on 240 volts and under 30 amps of current draw
Assuming a 120V circuit then a 30A Single Pole. For a 240V circuit an 30A two pole. Of course anything smaller that a 30A is acceptable. 30A is the maximum allowed.
The term "double pole" usually means a breaker with 2 handles that attaches in the space as a normal single pole breaker. If this is what you mean, no, you cannot. There is no potential, or voltage, between the wire terminals. If by "double pole" you mean what is usually called a 2-pole breaker, which is a breaker with 2 handles that attaches in the space of 2 single pole breakers, then yes, you can use this breaker and 12/2 wire to produce a 220v circuit.
A pole In a circut breaker refers to the number of circuts it controls, single pole only controls one, double controls 2 at same time
A single phase circuit uses a 2 pole breaker if the circuit is 120/240 split phase and the load is connected 240. Both legs are hot, so both need to be protected. This is the normal US/Canada configuration.
120 amps The above answer is wrong. A 60 amp breaker is designed to trip at 60 amps be it a single pole, double pole or a triple pole that is used on three phase equipment. The number on the handle of a breaker is the trip capacity.
Assuming a 120V circuit then a 30A Single Pole. For a 240V circuit an 30A two pole. Of course anything smaller that a 30A is acceptable. 30A is the maximum allowed.
The term "double pole" usually means a breaker with 2 handles that attaches in the space as a normal single pole breaker. If this is what you mean, no, you cannot. There is no potential, or voltage, between the wire terminals. If by "double pole" you mean what is usually called a 2-pole breaker, which is a breaker with 2 handles that attaches in the space of 2 single pole breakers, then yes, you can use this breaker and 12/2 wire to produce a 220v circuit.
can a 20 amp double pole circuit breaker be used for 2 different 120 v circuits using 14 - 2 wire
A pole In a circut breaker refers to the number of circuts it controls, single pole only controls one, double controls 2 at same time
A single phase circuit uses a 2 pole breaker if the circuit is 120/240 split phase and the load is connected 240. Both legs are hot, so both need to be protected. This is the normal US/Canada configuration.
Yes.
In America, a 2-pole breaker is controlling 240V. 120V per leg.
120 amps The above answer is wrong. A 60 amp breaker is designed to trip at 60 amps be it a single pole, double pole or a triple pole that is used on three phase equipment. The number on the handle of a breaker is the trip capacity.
If it was two wires under one screw on a single-pole breaker, that would not be proper, and most probably against electrical code.If it was two wires, each under their own screw on a double-pole breaker, then that would be a 220 volt circuit; each wire going to its own "leg" of the breaker panel.
No, you cannot use one in place of the other.
: Replace the main panel breaker feeding the subpanel with a 30 amp breaker if it is currently larger (50A typical). Then you should be able to change your subpanel's 2 pole breaker to a couple of single pole 30A breakers. Use one of the single 30's for your 30A receptacle.: : : : IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB : SAFELY AND COMPETENTLY : REFER THIS WORK TO QUALIFIED PROFESSIONALS. : If you do this work yourself, always turn off the power at the breaker box/fuse panel BEFORE you attempt to do any work AND always use an electrician's test meter having metal-tipped probes (not a simple proximity voltage indicator) to insure the circuit is, in fact, de-energized.
Two pole what? Switch, breaker? 2 pole does just that. Either switches two separate sources like different legs of a 220 volt circuit or switches both the hot and neutral in a 120 volt circuit or plus and minus in a 12 volt circuit or a two pole breaker takes 2 separate 120v legs in a home breaker panel. Each leg of 120 volt breaker panel is 120 volts to ground and 240 volts between them. The electricity entering your house looks like a sine wave with each leg being 180 degrees out of phase from the other. The double pole breaker takes each separate leg to the device it is powering and provides 240 volts.