What is a fuse type isolating switch
We know that the main function of a general isolating switch is to disconnect small currents and change the mode of operation. I don’t know if you noticed it. One of them is to disconnect the small current...
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What happens if the circuit breaker fails to close after tripping?
Almost everyone has experienced a circuit breaker tripping, and there are certainly not a few people who have seen it fail to close after a trip. People often ask why the gate will not close (can't move)? ...
Protective function of circuit breaker
Circuit breaker refers to a switching device that can close, carry and break current under normal circuit conditions and can close, carry and break current under abnormal circuit conditions within a s
The characteristics and use of waterproof plugs
Electricity is used a lot in our lives, whether it is indoors or outdoors, electricity is used. When we use electricity outdoors, we should pay special attention to waterproofing. When we buy it, we also n...
The structure and working principle of low voltage circuit breaker
Low-voltage air circuit breaker, also known as automatic air switch or air switch, is a switching device. It is used to automatically break the circuit when the circuit is overloaded, short-circuited,
What is the structure principle of a safety padlock
Safety padlocks are the most widely used hardware locks in today's society. The marble lock safety padlock occupies the core.
How our JVM16-63 MCB working with F3,S3,SD3,U3+O3,O3 auxiliary contact, shunt trippers
ApplicationApplicable to MCB model JVM16-63, used to control remote signaling deviceCombination Scheme F3 Auxiliary ContactContact capacity: AC: Un=415V In=3A Un=240V In=6A ...
How our 16 series MCB,RCD,RCBOs working with auxiliaries
JVRX16 Auxiliary is to be installed in left side of 16 series products (such as JVM16-63 MCB, JVL16-63 RCCB,JVRO16-32 RCBO), with function of auxiliary contact, remote shunt tripper, and under-voltage
Maintenance of AC contactor coil
I believe everyone knows about the AC contactor. The biggest failure of the AC contactor is its coil, so today Sofielec has collected relevant information and summarized it. I sincerely hope that it can he...
The development trend of low-voltage circuit breakers
In 2011, the country’s newly installed power generation capacity was 90.41 million kilowatts, exceeding 90 million kilowatts for six consecutive years. Among them, 12.25 million kilowatts of new hydro
Protection function of circuit breaker
The circuit breaker is also called a circuit breaker, and its interior is mainly composed of main contacts, reaction springs, hooks, levers, electromagnetic tripping and undervoltage tripping devices.
The difference between fast fuse and ordinary fuse
Fast fuse is a kind of fuse, fast fuse is used for short circuit protection of semiconductor rectifier components or circuit breakers. Because the overload capacity of semiconductor components is too large...