What is the difference between a high-voltage load switch, an isolation switch, and a circuit breaker?

Create Date: 2024-8-30 12:03:23|Source: Eaton/Eaton

The difference between a high-voltage load switch, an isolation switch, and a circuit breaker

1. The load switch can be broken with load and has the function of self-extinguishing arc, but its breaking capacity is very small and limited.

2. The isolation switch is generally not able to break with load, there is no arc extinguishing cover in the structure, and there are also isolation switches that can break the load, but the structure is different from the load switch, which is relatively simple.

3. Load switch and isolation switch can form an obvious disconnection point, most of the circuit breakers do not have isolation function, and there are a few circuit breakers with isolation function.

4. The isolation switch does not have the protection function, and the protection of the load switch is generally protected by fuse, and there is only quick break and overcurrent

5. The breaking capacity of the circuit breaker can be very high in the manufacturing process. It mainly relies on the current transformer to cooperate with the secondary equipment to protect. It can have functions such as short-circuit protection, overload protection, and leakage protection.

What is the difference between a high-voltage load switch, an isolation switch, and a circuit breaker?

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