When we talk about circuit protection, the circuit breaker itself is often the focus of attention.However, a series of seemingly insignificant circuit breaker accessories are quietly playing a "key role" in improving the safety, automation and intelligence of the system.Different from the basic circuit breaker which only has the basic opening and closing function, the addition of accessories greatly expands its capability boundary.

For example:

Auxiliary switch: provides the signal of circuit breaker position, so that the control room can know its "on" or "off" status remotely.

Shunt release: It allows the breaker to be cut off instantly by a button in an emergency, which is an essential component to realize centralized control.

Undervoltage release: automatically trips when the grid voltage drops abnormally to prevent the equipment from running abnormally under low voltage.

Electric operating mechanism: it is the cornerstone of intelligent power distribution to make the circuit breaker accept the instructions of automation system or intelligent terminal for remote opening and closing.