How does the circuit breaker in the meter box and ready board control the circuit?

The circuit breaker in the meter box and ready board is the switching device used to control the circuit. The circuit breaker ensures that the current runs within a normal range by controlling the on-and-off state of the circuit, and at the same time cuts off the circuit to prevent damage to equipment or wires when an overload or short circuit occurs. The control principle of a circuit breaker includes the following steps:

Overload Protection: The circuit breaker has a built-in overload protection device that monitors the current flowing through the circuit. When the current exceeds the rated capacity of the circuit breaker, the overload protection senses an abnormal situation and triggers the circuit breaker to cut off the circuit.

Short circuit protection: The circuit breaker also has short circuit protection function. When a short circuit occurs in a circuit, that is, the current rises sharply under abnormal conditions, the short circuit protection device quickly senses and causes the circuit breaker to operate, quickly cutting off the circuit.

Manual control: The circuit breaker in the meter box and ready board usually also has a manual operation button for the user to manually switch the circuit. Users can connect or disconnect circuits via manual controls, such as during maintenance or emergencies.

Status Indication: Circuit breakers are often equipped with a status indicator that shows the current status of the circuit breaker, such as "closed" (closed) or "open" (opened).

These control functions of the circuit breaker ensure the safe operation of the circuit, prevent damage caused by overload and short circuit, and provide users with the convenience of manual control.