Circuit breakers and travel switches are two common devices in electrical systems, and they play an important role in circuit control and protection. This article will introduce the definition, function and difference of circuit breaker and travel switch to help readers better understand and distinguish the application of these two devices in electrical system.

Definition and function of circuit breaker

definition: A circuit breaker is an electrical device used to cut off and connect a circuit. It is mainly used to protect circuits and equipment from overload, short circuit and other faults.

Function:

1. overload protection: When the circuit load exceeds the rated value, the circuit breaker will automatically cut off the current to prevent the equipment from overheating or damage.
2. Short circuit protection: in the event of a short circuit, the circuit breaker can quickly cut off the current, to avoid the expansion of the circuit fault.
3. Manual control: The circuit breaker can be operated manually to realize the manual switch control of the circuit.

Definition and function of travel switch

definition: The travel switch is a switching device used to control the operating state of electrical equipment, which can monitor the operation of the equipment and control it.

Function:

1. equipment status monitoring: the travel switch can monitor the operating status of the equipment, such as switch status, position, etc.
2. Automatic control: According to the operating state and set conditions of the equipment, the travel switch can automatically control the start and stop or position adjustment of the equipment.
3. Alarm function: the travel switch can send out an alarm signal to prompt the abnormal or fault state of the equipment.

The difference between circuit breaker and travel switch

1. different functions: circuit breakers are mainly used for circuit protection, which can cut off current to protect circuits and equipment; while travel switches are mainly used for equipment status monitoring and control to realize automatic control and alarm functions of equipment.
2. The working principle is different: the circuit breaker judges whether to cut off the circuit by detecting the current size and time; while the travel switch controls and monitors by detecting the operating state and position of the equipment.
3. Different application areas: circuit breakers are widely used in circuit protection fields, such as residential, industrial and commercial electricity; travel switches are mainly used in industrial automation control systems to monitor and control the operating status of equipment.

By analyzing the definition, function and difference of circuit breaker and travel switch, readers can understand the function and application range of these two electrical devices in circuit control and protection more clearly. Circuit breakers are mainly used for circuit protection, while travel switches are mainly used for equipment condition monitoring and control, each playing an important role in ensuring the safe operation and automatic control of electrical systems.