# MCCB Installation For 3-Phase Supply – 3-Phase Panel Wiring

As you know that we use a Circuit breaker for protection and switch On/Off a circuit from the main distribution board. I also publish posts about MCCB breaker wring but in this post, you will about circuit breaker installation in three phases. In this post, I am going to share with you a power panel board image in which three circuit breakers install with three phase power supply. This image is too clear and no need to design a diagram for this post. However, I highlight the connection and step in the image from which you can easily learn.

## Circuit Breaker Installation For Three Phases – How to install breakers for 3 phases in power panel board

In my last post, I also share a photo of this panel and also talk about the 3-phase supply colours, This post is about the MCCB breaker wiring connection and installation So let’s talk about this. As you know that circuit breakers are available in many shapes and different types. Not only this but CB are available for the different load (ampere).
We install circuit breakers in every place and distribution board/panel board regarding load and requirements.

If we want to control a single-phase supply then we can do this work by using the single or double pole circuit breaker, and if we are required to control the 3 phase then we can do this job by using 3 pole MCCB but if we have three phases 4 wire system then we use a 4 pole breaker.
Calculation of load and required breaker is also a big point and we face it in every place, if you use a 100-ampere circuit breaker for a 150-ampere load, the breaker will trip or soon burn.
However calculations about the load and required breaker will talk at another time, now this post is about the circuit breaker installation.
So this post and the below image show a power panel board, in which three circuit breakers are installed. These all MCCB breakers are 3 poles and designed for three-phase power supply control. The image is not about only the wiring of these breakers, but from this, you can get an idea about the installing breaker.

Installing the breaker in a panel is too easy, first of all, switch off the main CB and then install the breakers as I have shown in the above image, after that do wiring connections with power supply copper strips or your incoming power supply. After that get connections from the breakers.

### So What you learn From this Post

You get a new idea about the circuit breaker installation and you learn also about the C/B wining connection from this post. But the main reason for sharing this image with you is that all CB connections in your real life are clear just like this.
In the circuit breaker installation image, you find out that all the breakers are installed in level and one line. All breakers have strong connections with the power supply and have free space with one another.
And if one of them burned then a person can easily replace is a little and small time.

So I hope you learn something from the circuit breaker installation image and post, Share this knowledge with your friends on social media and share you knowledge with me because I am also one of you and I want to learn about electrical technology and love to share my knowledge with all on this blog which I learned.