Discuss Selecting a 3 or 4 pole main switch in the UK Electrical Forum area at ElectriciansForums.net
Yes is there a requirement to switch the N?Evening all
Pricing up a consumer unit change in a large industrial unit
When it comes to selecting a 3Pole main switch for a 24 way distribution board, are there any factors that will change the decision between a 125A 3pole or 4pole main switch?
As above it's a potential mode of failure. Triple pole is better where the neutral doesn't need to be switched IMO.As long as the neutral doesn’t break first before the line conductors when being switched
I alway fit 4 pole to make testing easier
It is easier for IR testing on a TN system to have a four pole main switch.
When it comes to selecting a 3Pole main switch for a 24 way distribution board, are there any factors that will change the decision between a 125A 3pole or 4pole main switch?
Reply to Selecting a 3 or 4 pole main switch in the UK Electrical Forum area at ElectriciansForums.net
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