Knowledge! Wiring requirements and specifications for circuit breakers in small power distribution units

The wiring requirements and sizes of the circuit breaker in the small power distribution unit are as follows:

Wire specification: Select the appropriate wire cross-sectional area according to the load current and the rated current of the circuit breaker to ensure that the current load does not exceed the wire capacity.

Circuit breaker selection: Select the appropriate circuit breaker model according to the load size and usage to ensure overload and short circuit protection.

Terminal Blocks: Use standard copper or aluminum terminals to ensure good contact and electrical conductivity.

Wiring method: Use the correct wiring method, usually using bolt fastening, crimping or welding to ensure that the wiring is firm and reliable.

Grounding protection: The circuit breaker must be connected to a reliable grounding wire to provide safety protection.

Marking: There should be a clear mark in the small power distribution unit, clearly marking the purpose, rated current and breaking capacity of each circuit breaker.

Environmental requirements: The small power distribution unit should be kept dry and well ventilated to avoid moisture and dust to ensure the normal operation of the circuit breaker.

Following the above specifications can ensure the safe and stable operation of the circuit breaker in the small power distribution unit and prevent electrical accidents. Be sure to have installation and maintenance performed by a professional electrician.