Global IR testing on RCBO populated CU

[mattg4321]

I was looking at that marking on the Hager ADA RCBO's last week and thinking it doesn't really help all that much as they don't have a switched neutral. Very annoying they didn't incorporate this when designing the RCBO a couple of years ago.

 

[Mike Johnson]

The only problem with switched neutral RCBO's is they are dual module, not a problem in a continental type CU but very restrictive in a normal UK domestic board, I had to use single module RCBO's for the lighting circuits due to lack of room.

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Hager 2 Pole 6kA B-6A 30mA A Class RCBO AD906J for sale in stores and online from Electrical Wholesaler for 1 day delivery

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[Midwest]

The only problem with switched neutral RCBO's is they are dual module, not a problem in a continental type CU but very restrictive in a normal UK domestic board, I had to use single module RCBO's for the lighting circuits due to lack of room.

EW - Hager 2 Pole 6kA B-6A 30mA A Class RCBO AD906J

Hager 2 Pole 6kA B-6A 30mA A Class RCBO AD906J for sale in stores and online from Electrical Wholesaler for 1 day delivery

www.electricalwholesaler.ie

I’ve installed another CU in my garage, that Wylex NM with switched neutral RCBO’s.

 

[mattg4321]

The Wylex, Crabtree and Fusebox switched neutral rcbo are all single module

 

[Mike Johnson]

I would like to believe that, but the neutral from the circuit is still attached to the connector block in the CU and therefore has not been isolated. It can't isolate the neutral if the circuit does not pass through the RCBO or have a missed something here?

 

[mattg4321]

Yes you have missed something!

Both circuit line and neutral go into the top of the rcbo. There is a neutral lead from the rcbo to the neutral bar.

 

[Mike Johnson]

Thanks matt432, must get out more does not apply now days. ?

 

[LastManOnline]

There is a neutral lead from the rcbo to the neutral bar.

I always use dual module rcbo, s (Hagar or GE) where space allows. Single module only where space restricted. A CU with dual module rcbo, s is the easiest CU to install that has ever been invented. The dual module buzz bar means no neutral fly leads. A joy to work with.

 

[mattg4321]

I always use dual module rcbo, s (Hagar or GE) where space allows. Single module only where space restricted. A CU with dual module rcbo, s is the easiest CU to install that has ever been invented. The dual module buzz bar means no neutral fly leads. A joy to work with.

Not readily available here in England.

 

[Mike Johnson]

EW - Hager 2 Pole 6kA B-6A 30mA A Class RCBO AD906J

Hager 2 Pole 6kA B-6A 30mA A Class RCBO AD906J for sale in stores and online from Electrical Wholesaler for 1 day delivery

www.electricalwholesaler.ie