2-pole circuit breakers: what is it

2-pole circuit breakers are compact current-limiting devices and are used in residential, industrial and office premises to protect the electric network from current overloads and short circuits. If a short circuit occurs in the network, the switching device works and disconnects the electric circuit, thereby maintaining the integrity of the elements of electrical installations. These devices are installed in power networks with two poles of the main chain.

Two protective systems are used in the design of the switches: an electromagnetic processor, which disconnects the electron when exceeding the nominal current power by 3-6 times and the heat supply, which works when the permissible conductor temperature exceeds, usually about 40 ° C. The circuit breaker can be used for preventive shutdowns and when conducting small household repair of equipment connected to the network.