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The dual module/pole Hager RCBO's I have in my UK board sense both line and neutral, unfortunately due to the silly size board installed I have had to resort to single module line only sensing RCBO's for the lighting.
Discuss Is there a chance Dual RCD Consumers could be "banned " from rentals soon? in the UK Electrical Forum area at ElectriciansForums.net
The dual module/pole Hager RCBO's I have in my UK board sense both line and neutral, unfortunately due to the silly size board installed I have had to resort to single module line only sensing RCBO's for the lighting.
I think some EU countries used to have two L out of a 3P set, so no neutral as such, or maybe just poor enforcement of polarity (which the UK has had for a long time, well before 13A plugs in the 1940s), so you would need OCPD in both paths.There must be a reason for an insistence on true DP protection, but it's not immediately obvious to me.
Listed by a wholesaler as 2 pole, but not by Hager.These Hager RCBO's are listed as two Pole: Electrical Wholesaler - Hager 2 Pole 6kA B-10A 30mA A Class RCBO AD910J -
European RCBO's I have used and come across monitor both the live and neutral and are dual module, the regulations in Europe would not allow single module in France or Germany.
You mean switching the line ?Yes because electrical supplies in those countries need protection in both poles.
Many years ago double pole protection was required in the UK when the N-E connection was not necessarily reliable, but now our electricity supplies have the neutral reliably connected to earth and so we only need protection in the line.
That's what I was wondering. Essentially our single module 1P+N RCBO does exactly the same as a 2 module device?You mean switching the line ?
That's all that's needed
If there is little risk of a "hot" neutral then that is true. You get the full isolation for testing and selectivity with any up-stream RCD protection for N-E faults.You mean switching the line ?
That's all that's needed
Still though.£6k a week , not a night !
That's what I was wondering. Essentially our single module 1P+N RCBO does exactly the same as a 2 module device?
In the UK it generally will do yes. But in another country where supply polarity cannot be guaranteed or where neither pole of the supply may he reliably connected to earth then the difference should be obvious.
Reply to Is there a chance Dual RCD Consumers could be "banned " from rentals soon? in the UK Electrical Forum area at ElectriciansForums.net
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