Circuit breaker - introduction

A circuit breaker is an electrical device used for circuit protection. it is mainly used to control the current in the circuit and disconnect the circuit to avoid circuit overload, short circuit and other faults. according to the rated current, it is divided into low-voltage circuit breakers and high-voltage circuit breakers, according to the protection mode, it is divided into overload protection circuit breakers and short-circuit protection circuit breakers, and according to the application occasions, it is divided into household circuit breakers and industrial circuit breakers. commonly used circuit breakers also include air circuit breakers, vacuum circuit breakers, oil-immersed circuit breakers, sf6 gas circuit breakers, etc. in addition to protecting the safety of the circuit, the circuit breaker can also be used to control the switch of the circuit, adjust the voltage and current of the circuit, and so on.

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