How To Wire And Install A Breaker Box

We do always the breaker box wiring in electrical wiring for safety, in this post you will learn how a circuit breaker box work in our electrical wiring. In this post, I will share with you a simple breaker box diagram that helps you to wire a breaker box and which gave you an idea about circuit breaker box wiring.

 Breaker Boxes

Wiring and Installation Guide For Breaker Box With Diagram

Importance of Breaker box in Electrical wiring :

(1) We can work easily on our electrical wiring by switching off the main circuit breaker.
(2) We can easily find out the short circuit, (if a room has a short circuit then the circuit breaker will be trip which is used for the room).
(3) We can easily switch off the electricity where we did not need the electric supply.

Circuit Breaker Box Wiring Diagram And Explanation :

In the wiring of the breaker box, we wire the circuit breakers, Mostly we use the single-phase electric supply in our daily life, in the single phase we have one phase and one neutral. In the breaker box first, we wire the two pole circuit breaker and then we will get supply from the two pole circuit breaker for other circuit breakers.

After wiring the 2 pole breaker we will get the phase from the 2 pole breaker and share will all the single pole OR one pole circuit breakers. Then we will get the electric supply for every point from the one pole circuit breakers.
E.g: If we wire a breaker box in a home and we have 3 rooms and one kitchen, so we wire 2 single pole breakers for each room because in room wiring we have two types of load, High load, and low load. High load means electric heater, Air conditioner, etc and Low load means electric fans, TV, computer, lights, etc.
So we wire two types of breakers in which one for high load and one for low load.
For high load, we will use 20 Ampere (20 A) and for the low load, we use 10 amperes. And for the kitchen, we will use only one high-ampere circuit breaker (20 A). In the below circuit breaker box wiring diagram, I completely guide about all things but my article does not end, it continues after the diagram.
In the above breaker box wiring diagram, I did not use the symbols which is very easy for me to design but i want that you understand in a very small time that’s the way I use the breaker images.
In the above diagram, I wire three-room and one kitchen from the breaker box.
Note that the neutral wire is only controlled from the main double pole breaker and we connect the neutral wire to a brass electrical connector which is available in the market and we use it in every breaker box wiring.
Use the 6 mm wire for the main supply and use 4 mm wire for the high load of rooms (Air conditioner, Heater, etc) and 2.5 mm for the low load of rooms, note that 2.5 mm cable only for the main switching board of the room not for another room wiring. Use the 1.5 mm for other electric appliances (ceiling fan, lights, etc) in the bedroom. Use the 4 mm wire for neutral for each room because this wire is common and we get supply for both high and low loads.

Final Word :

Use 6 mm copper wire for incoming supply.
Use the 63 Ampere high-quality double pole circuit breaker.
Use the 4 mm cable for High load (e.g Air conditioner, heater).
Use the 20 Ampere circuit breaker for High load.
Use the 10 Ampere circuit breaker for Low load.
Use a 4 mm cable for the neutral wire.
Use the high load and high-quality connector for a neutral supply connection.
Use 6 mm wire for the sharing phase to the circuit breakers.
Use the 20 amperes breaker for bathroom and kitchen supplies.
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To all of my visitors, I requested to share this breaker box wiring diagram and article because I spend a big time of making the diagram and writing this article, and now if you have any questions regarding this circuit breaker box diagram then do your post in below comment section.

2 thoughts on “How To Wire And Install A Breaker Box”

• December 16, 2015 at 8:17 am