Single and Three Phase DB Wiring Diagram / Single phase & Three Phase Socket connection / Circuit

In this Video we can learn DB box wiring
Single phase socket Connection
Three Phase Socket Connection
ELCB Connection

What is DB Box in Electrical?
A distribution board (also known as panelboard, breaker panel, electric panel, DB board or DB box) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits while providing a protective fuse or circuit breaker for each circuit in a common enclosure.

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In this video we explain very easily for more information learning about this topic just watch and learn.

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[fa]

Hi, you have a 4 pole breaker, 2 x 3 pole breakers, and then 1 pole breakers. From your diagram as the 3 lives come in to the input of the 4 pole breaker as well as the neutral. On the output of that 4 pole breaker, the lives, l1, L2, L3 is feeding the 2x3 pole breakers as well as the 1 pole breakers. My question is. From the output of the 4 pole breaker, are all the lives coming from the output of the 4 pole breaker, meaning are you putting 4 wires into the output of l1, L2 and l3 and then feeding each into the 2x3 pole breakers and the 1 pole breakers?