Material of distribution box
Distribution boxes are mainly made of the following materials: Cold-rolled steel sheet Distribution boxes made of this ...
Can the thermomagnetic tripper in the moulded case circuit breaker set the current ?
Generally, the current of thermomagnetic release of most domestic moulded case circuit breakers is not adjustable. Some ...
Does the plastic case circuit breaker itself have isolation function ?
Yes. Plastic housing refers to the use of plastic insulators as the shell of the device, used to isolate between conduct ...
Working Principle of Molded Case Circuit Breaker
1. Working Conditions of Molded Case Circuit Breakers (1) The upper limit of ambient air temperature is + 40 C; the low ...
What are the selection principles of circuit breakers ?
1. Firstly, the rated voltage should be selected according to the rated voltage, and the rated voltage should be the sam ...
What is the working principle of circuit breaker ?
When short circuit occurs, the high current, usually 10 to 12 times, generates the magnetic field customer service sprin ...
How to choose Circuit Breakers?
(1) The rated current of the circuit breaker is determined by the calculated current of the circuit; (About 99% of the d ...
Causes of circuit breaker tripping
There are generally three reasons for circuit breaker tripping, the first is overload, the second is short circuit, and ...
How to solve the problem that the temperature of moulded case circuit breaker rises ?
1. The problem of material purity of electric conductor or or contact itself leads to excessive working resistance and c ...
The release mode of moulded case circuit breaker should be selected according to the type of circuit breaker release
The release of moulded case circuit breaker is divided into instantaneous release and overload release. Instantaneous an ...
