![This diagram is for a single phase device. I was wondering why didn't they use single pole MCB instead of 3 pole : r/ElectricalEngineering This diagram is for a single phase device. I was wondering why didn't they use single pole MCB instead of 3 pole : r/ElectricalEngineering](https://external-preview.redd.it/Yn2MM7XOQjrg52749oacr3vmpB5xIawAzHIbofYNs8M.jpg?auto=webp&s=fde578d5a50df072820e55275f16efdeaeef0080)
This diagram is for a single phase device. I was wondering why didn't they use single pole MCB instead of 3 pole : r/ElectricalEngineering
![A complete diagram of single phase distribution board with double pole mcb wiring, rcd wiring, volt met… | Distribution board, Electrical wiring, Electrical diagram A complete diagram of single phase distribution board with double pole mcb wiring, rcd wiring, volt met… | Distribution board, Electrical wiring, Electrical diagram](https://i.pinimg.com/originals/63/54/9c/63549c5b422a35cd14daabc476579d60.jpg)
A complete diagram of single phase distribution board with double pole mcb wiring, rcd wiring, volt met… | Distribution board, Electrical wiring, Electrical diagram
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