Nader Circuit Breaker

The installation methods of low-voltage circuit breakers are divided into: fixed, plug-in and withdrawable. Fixed type: Fix the circuit breaker on the installation board of the complete set with mounting screws. Because the connecting wire must be removed when replacing the circuit breaker, the repla...

When the circuit breaker is used as the protection of the upper and lower levels, its action should be selective, and all levels should coordinate with each other. The selective coordination between the upper and lower stages of the circuit breaker must have selectivity, rapidity and sensitivity. The...

Setting principles of low-voltage circuit breakers: 1) During normal operation and normal starting, the circuit should not be cut off. Regarding that the circuit breaker does not operate when starting, take a representative cage motor as an example, and perform calculation and verification according ...

8 principles for selecting low-voltage circuit breakers: The rated voltage of the low-voltage circuit breaker the rated voltage of the line. The rated current of the low-voltage circuit breaker the calculated load current of the line. The limit on-off capacity of the low-voltage circuit breaker is th...

When designing and selecting low-voltage circuit breakers, the general principles that need to be considered are: Determine the type of circuit breaker selected according to the load nature, fault category and line protection requirements of the low-voltage power distribution system, and comply with ...