Circuit Breaker Manufacturer Analysis What is the difference between isolators and Circuit Breakers?

The isolator is a kind of linear optocoupler isolation principle, which converts the input signal and outputs it. Input, output, and working power are isolated from each other, especially suitable for use with equipment and meters that require electrical isolation.

Circuit breakers refer to a switching device that can close, carry and break the current under normal circuit conditions and can close, carry and break the current under abnormal circuit conditions within a specified time.

internal structure

From the appearance, they are very similar, but the internal structures of the two are different, and there are also certain differences in their functions and overall working principles. In terms of structure, the air switch is a type of circuit breaker, so the internal structure will be a little more complicated. The air switch has main contacts, springs and heating elements, etc., while the structure of the isolator is composed of conductive parts, as well as a base, a control mechanism, and a frame.

Isolators are passive components, circuit breakers are active components

The circuit breaker manufacturer tells you that when a short-circuit current occurs in the line, the components that can actively cut off the short-circuit current are called active components, and the components that can only passively withstand the electrodynamic and thermal shocks of the short-circuit current are called passive components. Isolators are passive components, and circuit breakers and fuses are both active components.

Can circuit breakers protect people?

Circuit breakers can be used to cut off and connect high-voltage circuits under normal conditions to protect people's personal safety. Therefore, most households have a circuit breaker installed in them. The circuit breaker manufacturer tells you that when we install the circuit breaker, we must first check whether the specifications of the circuit breaker match the total power of the electrical appliances in the circuit branch of the home. If the size of the circuit breaker is too large, it will not be able to play a good role in overload protection. If the size of the circuit breaker is too small, it is prone to tripping and power failure. When installing the circuit breaker, we also need to check whether the product has 3C certification, etc., and the probability of failure of the circuit breaker with unqualified product quality is also greater.