Load break switch is a type of equipment that isolates the power failure part from the live part and creates a clear break point to isolate the faulty equipment or carry out the maintenance.
A Load break switch can only switch on or off load current, or switch off over load current, so it is only used to switch off and on circuits under normal conditions, not short circuit fault current. However, it is required that its structure can pass the fault current of short circuit time without damage.
The opening and closing frequency and operating life of load disconnecting switches are usually higher than those of circuit breakers.
Here is something you have to keep in mind when choosing a load break switch manufacturer:
- Whether the contact and terminal board are copper plated with silver, with two separate contact surfaces, to ensure good electrical performance and reliability of closing in place？
- Whether the operation mechanism adopts spring energy storage, instantaneous release acceleration mechanism, instantaneous connection and break double breakpoints?
- Whether there is an arc isolation plate inside the shell to separate the contacts, ensure that the arc in each phase independent indoor extinguishing, improve the safety performance of the switch?
- Except the wiring part, whether the product adopts fully closed design, with a window to directly observe the on-off state of contact?
- Whether can a special padlock be installed on the operating handle to lock the handle to prevent misoperation?