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What do you know about MCB parts?

Views: 46     Author: Site Editor     Publish Time: 2023-03-24      Origin: Site

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What do you know about MCB parts?

MCB parts are a necessary part of any electrical circuit. They are designed to protect your circuit from overloads and faults. You may be wondering what an MCB is and how it works. In this blog post, we will explore the basics of MCB parts and how they can benefit your electrical system. We will also learn about the different types of MCBs and their applications. Are you ready to learn more about MCBs? Read on!


  • The basics of MCB parts

  • The different types of MCB parts

  • When selecting an MCB, you need to consider the following factors:


The basics of MCB parts

An MCB or miniature circuit breaker is a vital part of any electrical installation. It is used to protect circuits from overloads and short circuits. MCBs are available in a variety of different sizes and configurations to suit different applications.

The most basic MCB has two parts: the body and the trip mechanism. The body contains the main contacts, which connect the circuit to be protected. The trip mechanism is what trips the breaker in the event of an overload or short circuit. It consists of a bimetallic strip that bends when heated by an electric current, causing the breaker to trip.

MCBs are available in various breaking capacities, which is the amount of current that can be safely interrupted by the breaker. The most common breaking capacity for domestic applications is 10kA. For commercial and industrial applications, higher breaking capacities are often required, such as 63kA or 100kA.


The different types of MCB parts

There are three main types of MCB parts: the base, the switch, and the cover.

The base is the bottom part of the MCB that sits on the circuit board. It has two metal prongs that make contact with the circuit board and two screws that hold the MCB in place.

The switch is the top part of the MCB that controls the flow of electricity. It has a lever that can be moved to turn the power on or off.

The cover is a plastic or metal plate that covers theswitch. It protects the switch from being accidentally turned on or off.


When selecting an MCB, you need to consider the following factors:

1. The current rating of the MCB - this should be matched to the current rating of the circuit it will be protecting.

2. The trip level of the MCB - this is the point at which the breaker will trip and disconnect the circuit in order to protect it from damage.

3. The voltage rating of the MCB - this should be matched to the voltage of the circuit it will be protecting.

4. The size of the MCB - this will depend on the size of the circuit it will be protecting.


JIELI Electrical always focuses on customers’ needs and therefore it will provide the best MCB parts for all customers from all over the world. If you want to know more, please connect them.


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