Circuit breakers and air switches are common protection equipment in the electrical field, which are used to protect circuits and equipment from overload, short circuit and other faults. This article will analyze the essential differences between circuit breakers and air switches, and discuss their principles, functions and applicable scenarios to help readers better understand the differences and selection criteria between the two.

1. Circuit breaker

features:

• A protective device used to break an electrical circuit and cut off the current.
• The main function is to automatically cut off the current when an overload or short circuit occurs in the circuit to avoid danger such as equipment damage or fire.
• With short circuit protection, overload protection and other functions.
• Divided into fuse type circuit Breaker and magnetic circuit breaker type circuit breaker and other different types.

2. Air switch

features:

• A switching device used to open or close an electrical circuit.
• The main function is to control the on-off of the circuit, without overload or short circuit protection.
• It is usually used for manual control of circuits, such as switching lights, motors, etc.

3. Essential Differences

functional differences:

• the circuit breaker is mainly used to protect the circuit and has the function of breaking and protecting.
• The air switch is mainly used to control the on-off of the circuit and does not have overload or short circuit protection function.

Application Scenarios:

• circuit breakers are suitable for circuits that require overload and short circuit protection, such as motors, switchboards, etc.
• The air switch is suitable for manual control of the circuit, such as switching lights, electrical appliances, etc.

Structural design:

• circuit breakers usually contain thermal protection elements and magnetic triggers, which can automatically cut off the current in the event of an overload or short circuit in the circuit.
• The air switch is usually designed as a mechanical switch to manually control the on-off of the circuit.

There are obvious differences between circuit breakers and air switches in function, application scenarios and structural design. Circuit breakers are mainly used to protect circuits and have overload and short circuit protection functions, while air switches are mainly used to manually control the on-off of circuits and do not have protection functions. When choosing to use, it is necessary to make a reasonable choice according to the actual needs and circuit characteristics to ensure the safe and stable operation of the circuit.