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 ...
How to Choose the Release Mode of Molded Case Circuit Breaker
The release modes include: spring force release mode in energy storage state; driving force release mode of compressed a ...
What is Waterproof Distribution Box ?
We all know that in all the classifications of distribution boxes there is a kind of distribution boxes called waterproo ...
Advantages and Functions of Waterproof Distribution Box
1. The engineering plastic shell is made of glass fiber reinforced unsaturated polyester resin and pressed by moulds. It ...
Principle of AC Contactor
When the coil is electrified, the static iron core generates electromagnetic attraction and pulls the moving iron core t ...
Notes for Installation of Distribution Box
1. Whether installing metal or plastic distribution boxes, whether using open or concealed packaging, the box body of di ...
