What is a Residual Current Circuit Breaker?
Residual current circuit breaker(RCCB) is a switch that can act automatically when the leakage current in the circuit exceeds a predetermined value...2020-11-01What is a Buzzer?
Buzzer is a kind of voice device that converts audio model into sound signal. It is mainly used to prompt or alarm. According to different design...2020-10-28Fault diagnosis and maintenance of air circuit breaker
There are many air circuit breakers in the distribution equipment of high-rise buildings, which are generally used as low-voltage main switch or...2020-10-27What is the difference between MCCB and ACB?
Moulded case circuit breaker and air circuit breaker are very common products, but many people do not understand the difference between them...2020-10-23What is an air circuit breaker?
Air circuit breaker(ACB) is a mechanical switching device which can turn on, carry and break current under normal circuit conditions, and also turn...2020-10-22What is a molded case circuit breaker?
Molded case circuit breakers(MCCBs) automatically cut off current when the current exceeds the trip setting. Plastic housing refers to the housing...2020-10-16What is the working principle of the buzzer?
The buzzer is a sounding device that can convert audio signals into sound signals. It is usually powered by DC voltage. It is mainly divided into...2020-10-13What is the difference between MCB and RCCB?
What are the similarities and differences between miniature circuit breaker(MCB) and residual current circuit breaker(RCCB)?2020-09-29Why choose miniature circuit breaker with good quality?
If the use of miniature circuit breakers with substandard quality, unnecessary losses may be caused. The following are the causes and possible...2020-09-27Common brands of miniature circuit breakers in 2020
The article will introduce which brands of miniature circuit breakers are frequently used in 2020, in no particular order.2020-09-23
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Miniature Circuit Breakers
Miniature circuit breakers(MCBs) - 1pole, 2poles, 3poles, 4p...
DC Miniature Circuit Breakers
DC Miniature circuit breakers(MCBs) - 1pole, 2poles, 3poles,...
Molded Case Circuit Breaker
Molded Case Circuit Breakesr(MCCBs) - 2poles, 3poles, 4poles...
Air Circuit Breaker
Air Circuit Breakers(ACBs) - 3poles and 4poles; Rated curren...
Emergency Stop Switch
Emergency Stop Switches(E-Stops), also known emergency stop ...
Key Lock Switch
Key Lock Switches or Keylock Switches are electrical switch ...
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How does an emergency stop button work?
Emergency stop button switch is a fail-safe control switch that provides safety for the machinery and for the person using the machinery.
2020-08-09
What is the principle and function of the relay?
A relay is an electronic control device, which has a control system and a controlled system , and is usually used in automatic control circuits.
2020-08-22
What is the working principle of the buzzer?
The buzzer is a sounding device that can convert audio signals into sound signals. It is usually powered by DC voltage. It is mainly divided into...
2020-10-13
What is the principle of the push button switches?
We encounter various push button switches almost every day, such as medical equipment, automated production lines, and communication equipment.
2020-08-18
What are the common faults of relays?
During the use of the relay, due to various reasons, such as poor product quality, improper use, poor maintenance, etc., various failures often occur.
2020-09-02
What is the difference between NO and NC of the push button switches?
Terminal color distinguishes NO and NC contacts, terminal distinguishes NO and NC contacts, accurately measure NO and NC contacts with a multimeter.
2020-08-15
Four kinds of common electrical switches in industry
The push button switch is a device that turns on or off the power circuit by pressing the push part with fingers.
2020-08-09
What is the difference between relay and contactor?
Both relays and contactors are electromagnetic switching devices, relays are switching devices that work in the control loop, and contactors are...
2020-08-25
What are the common types of relays?
Relay is an automatic control device whose output will change by leaps when the input (electricity, magnetism, sound, light, heat) reaches...
2020-09-03
What is a contactor?
In the field of power distribution, contactors can be said to be one of the most common and widely used devices.
2020-08-20