When the current in the circuit reaches the trip current value, the circuit breaker will immediately trip—regardless of whether the circuit is overloaded at that moment. Therefore, it is crucial to select the trip current for the circuit breaker appropriately!

Specific parameters require calculation based on the number of outlets within the circuit and the power rating of the appliances connected to them. Here is a set of reference values for your consideration: Use C16 for lighting circuit breakers, C16 or C20 for five-hole outlet circuits, C16, C20, or C32 for three-hole outlet circuits, and C32, C40, or C63 for the main switch.

When making a selection, keep the following two points in mind:

The main switch's actuating current must be greater than that of any branch switch.

2. The current-carrying capacity of the wire in the circuit must exceed the trip current of the circuit breaker.

Therefore, when setting the operating current for the LW8-35 vacuum circuit breaker, pay attention to these details.