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Discuss RCD protection in a warehouse in the Electrical Forum area at ElectriciansForums.net


Electrician's Arms
Is there such thing as a three phase RCBO??!

Needing to install a three phase circuit for a 8kw three phase heater- connection by a 20a comando

I want to use the metal trunking I will be installing for various 13a sockets- so the circuit doesn't need the rcd protection- but i beleive the 20a comando will..

It will be a new hager TPN dis board

so hows best to get fault and additional protection in TP setup?

Dave OCD

Forum Mentor
I did similar a while ago and used a 3 phase MCB at the DB then an enclosure with a 3 phase RCD and 32a socket 'all in one' at the other end but mine was in SWA .


Hairy and proud
Staff member
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Electrician's Arms
Just Googled it...obvious really.

If it helps another divy the same current has to return through another phase if no N.

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