They are constructed with one hot wire and one neutral wire. Provide 120 volts 15 20 amps and have one hot wire and one neutral wire.
How A Circuit Breaker Works Electric Panel Box Information
Double pole vs single pole breaker. Provide 240 volts 20 60 amps and have two hot wires that share one neutral wire. The circuit breaker the wire and the wire insulation are all designed to work together as a system. A double pole breaker is primarily used with a 240 volt circuit 20 60 amps and consists of two hot wires. A circuit breaker that is connected to a 110 volt circuit is called a single pole breaker. A double pole breaker will have the appearance of double the width of the single pole breaker with the appearance of two switches bridged to function as a single switch. They are not interchangeable with single pose circuit breakers.
Double pole circuit breaker is like having 2 single pole circuit breakers. Well single pole breakers and double pole breakers differ in the voltage and amperage they provide as well as how they are wired. Double pole breakers will also require twice the space in a breaker panel as their single pole counterparts. Their advantage is that they provide two different circuits. A single pole breaker is typically used with 120 volt circuits 15 20 amps. Single pole breakers are thinner and have a single switch for onoff positions.
I would not use a double pole for two seperate circuits.
Gallery of Double Pole Vs Single Pole Breaker
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