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3 Phase Circuit Breaker Diagram for 3 Pole MCB, MCCB

Today I am writing about three phase circuit breaker diagram. Basically for three phase system we use two types of circuit breakers. In which one is a 3 pole MCB circuit breaker and other is 3 pole MCCB circuit breaker. So for low load we use the MCB (miniature circuit breaker). Mostly in MCB we can create a 3 pole mccb circuit breaker by connecting three single pole circuit breakers. Its can me 6 ampere, 10, 16, 20, 32 and 63 amperes. Also up to 63 Ampere but these are Limited.  However in three pole MCCB (molded case circuit breaker) we have a great limit up to 3000A.

So in the post you will find two 3 phase circuit breaker diagram. In which one of the 3 phase mcb circuit breaker and 2nd one is 3 phase mccb circuit breaker diagram.

Alos read

How to wire single, double, three and four pole circuit breaker?

3 Pole MCB – MCCB Circuit Breaker Wiring Diagrams

Here I shown a 3 phase circuit breaker diagram which is about the 3 phase miniature- circuit breaker.

3 phase circuit breaker diagram

In the above three phase circuit breaker diagram I shown the 3 pole mcb which use for controlling / switching the 3 phase system Supply. The three phase incoming supply is shown with red, yellow and blue (L1,L2,L3) which is connected to the circuit breaker upper terminals and the 3 phase outgoing supply is shown going to connect to load. Here another diagram which is about 3 pole molded case circuit breaker which is used for three phase supply switching on/off.

3 pole mccb circuit breaker wiring connection diagram

I hope after the above 3 phase circuit breaker diagrams, now you will be complete understood that how to wire a 3 phase circuit breaker. However if you have any question according the above 3 phase circuit breaker diagram. Then you can easily ask your question by using the below commenting system. If you got something about this diagram then kindly share this post on your social media profiles. Stay tune with us…. And Take Care…….

About Sikandar Haidar

Sikandar Haidar is Electrical And Information Technology Student. Who Wants to learn about Electrical and IT Technology and share his experience with people.

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