The Difference Between Load Isolation Switch And Isolating Switch

The main difference between Load isolation switch and isolating switch lies in its function, configuration and application scenario.

Function and configuration:

Load isolating switch: It has an arc extinguishing device, which can cut off the load current and overload current, but cannot directly disconnect the short-circuit current. It is usually connected in series with a high-voltage fuse to deal with possible short-circuit situations.
Isolating switch: It is not equipped with an arc extinguishing device and is mainly used to isolate the power supply to ensure the safety of other electrical equipment during maintenance. It can be used to connect or disconnect low-power circuits under certain conditions.

Application scenario:

Load isolating switch: It is suitable for scenarios where electrical equipment needs to be frequently operated and controlled, such as household appliances, lighting equipment, etc. It can automatically identify the current size and respond accordingly to ensure the safety of electricity use.
Isolating switch: It is widely used in high-voltage switchgear and is known for its high frequency of use and wide range of applications. It is mainly used to isolate the power supply to ensure the safety of other electrical equipment during maintenance.

Safety considerations:

During installation and use, the load disconnector needs to pay special attention to the status and performance of its arc extinguishing device to ensure that it can work normally and automatically cut off the power within the rated voltage and power range. Otherwise, it may cause safety hazards.
For the disconnector, although it does not have an arc extinguishing function, it is still necessary to strictly follow the operating procedures when using it to ensure that the operation is carried out after the power is cut off to ensure safety.