A single pole breaker will be 120 volts. But to make 100% sure test it with a volt meter.
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.
A single pole breaker controls one wire and is used for 120-volt circuits, while a double pole breaker controls two wires and is used for 240-volt circuits.
A single pole breaker controls one hot wire and is used for 120-volt circuits, while a double pole breaker controls two hot wires and is used for 240-volt circuits.
A double pole breaker controls two hot wires and provides 240 volts of power, while a single pole breaker controls one hot wire and provides 120 volts of power.
It depends on the specific requirements of your electrical system. Single pole breakers are typically used for 120-volt circuits, while double pole breakers are used for 240-volt circuits. If you are unsure, it is recommended to consult with a qualified electrician to determine the appropriate type of breaker for your needs.
you can use two hot wire different phases with a double pole braker .
The maximum voltage capacity of a 240V single pole breaker is 240 volts.
Answer for USA, Canada and countries running a 60 Hertz supply service.A single pole breaker is used to supply 120 volts to a 120 volt load circuit and to protect the conductors of that circuit. This is one "hot" wire to the load and then back to the neutral. A two pole or double pole breaker is used to supply 240 volts to a 240 volt load and to protect the conductors of that circuit. This is two "hot" wires to the load without a neutral, eg. baseboard heaters, hot water tanks. The two pole breaker is also used with a neutral when the 240 volt device needs a 120 volt supply for its controls. eg. electric range, dryer.If you mean a 120 breaker with two switches, those are designed to fit an extra circuit into a full breaker panel by removing the single, installing the double, and you now have two breakers in the space of one, each for the rated amps at 120 volts on the same "leg" of the 240 supply. These are not often recommended and some local codes do not permit them to be used more than temporarily.
A line thermostat on a 240 volt heater must open both of the supply lines that feed the heater. This is where the double pole thermostat is used. On 120 volt heaters only one hot line needs to be opened to shut the supply off from the source therefore a single pole thermostat is used.
Single Pole MCB is for 120V and Double pole is for 240 V. Single pole controls 1 live wire and Double pole can control 2 live wires. For an example, a refrigerator is connected to your power supply of 230 V (Rated) by means of Double pole MCB. If any one of the live wire gets short circuited, the other one which is connected to MCB also gets tripped with that. In other case, if you connect two single pole circuits, and if one live wire gets short circuited, it will be a dangerous.
The proper terminology is L1,L2,N. N is for neutral and it is this wire that is grounded. The voltage measurement from the L1 to N will give you 120 volts. Also from L2 to N will give you 120 volts and as you know from L1 to L2 will give you 240 volts. Single pole breakers in the panel board starting at the top, alternate between L1 and L2 all the way down to the bottom. These breakers all have 120 volt outputs. If you plug a 2 pole breaker into two slots then you get 240 outputs because L1 and L2 are adjacent to one another.
There are 240/2 = 120 of them