MOREDAY Ce IEC 1p 2p 3p 4p 6ka ac mcb Miniature Circuit Breaker

MCB is the abbreviation of Miniature Circuit Breaker, and some people call it Micro Circuit Breaker or Miniature Circuit Breaker.It is are critical components of an electrical system.

Circuit Breaker works on the switching principle and electromagnetism.A circuit breaker as an automatically operated electrical switch that is designed to protect an cuircuit breaker from damage caused by an excess amount of current due to overload or short circuit. The basic function of a circuit breaker is to interrupt current flow after a fault is detected.

MCB is a mechanical switching device that can make, carry and break current under normal circuit conditions, and can also make, carry and automatically break current under specified abnormal circuit conditions such as short circuit. In short, MCB is an overload and short circuit protection device. They are used in residential and commercial areas. Also, if you are still using a fuse, it is best to replace it with an MCB for your electrical safety.


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The power grid alternates at a frequency of 60 Hz or 60 cycles per second; hence the name “alternating current”. The voltage alternates between +V and -V, changing 60 times per second. This means that at a certain point the voltage is 0v, 60 times per second. The AC MCB will “disconnect” the connection at this 0v point, extinguish the arc, and protect the wiring from too much current.

There are many types of AC MCB on the market. However, the correct MCB should be selected according to the place used.


1. Easy to operate

Automatically-operated electrical switch

2. Can be used multiple times

A circuit breaker can be reset (either manually or automatically) to resume normal operation.

3. Wide application

Miniature Circuit breakers are made in various sizes.


1. Are you trading company or manufacturer ?

We are solar system manufacturer and,Our cumulative cooperative installed capacity reached 5GW+.

2. Can you supply samples for checking ?

Yes, we can supply free samples for all client.

3. How long is your delivery time?

A1)For Sample: 1-2Days ;
A2)For small Orders: 3-5Days;
A3)For mass Orders:7-10Days;
Anyway, It depend on order qty and payment time.  

4. Do you accept OEM business?

We accept OEM with your authorization.

5. How is the after-sale service?

We offer spare parts accordingly and English-speaking engineer offer online service. 

6. what kind of certificate you have ?

We have TÜV,CE, CB, SAA etc.

7. What is the service offered by company?

We have the professional engineer team which can design and develop the mould to arrive different customer requirements. We also have the professional sales team to offer good service from pre-sale to after-sale.

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