Underfloor heating rcbo or fused rcb

[Leelee]

Hi all

fitting some underfloor heating and have easy access to consumer unit. 
 

what’s peoples thoughts on connecting thermostat/ heating cable directly to an rcbo as opposed to using an mcb with a switched fused spur for over current protection?

 

[Leelee]

Apologies. Title should say “rcd” with fused spur.... think you’ll have guessed what I meant 

 

[Murdoch]

That would rather depend on the MIs as most rcbos are single pole.

If it was me I would still have local DP isolation

 

[Leelee]

That would rather depend on the MIs as most rcbos are single pole.

If it was me I would still have local DP isolation

Are you referring to the cable type?

 

[Murdoch]

Are you referring to the cable type?

MI = manufacturers instructions

 

[Leelee]

Ah I got ya. In my head I had mineral insulated which confused the hell outta me. 
 

It’ll be MCB- fused rcd- thermostat- heat mat then. 
 

 

[Murdoch]

It’ll be MCB- fused rcd- thermostat- heat mat then. 
 

fused rcd?