Extractor Fan in bathroom

[phantom1129]

i want to fix an extractor fan in a bathroom. i cannot vent through the roof so can only vent through the outside wall and then only directly over the bath which is in zone 2.
the extractor will be about 1.5 metres above the bath
i intend to power off the lighting circuit which is already protected by an RCBO 6 amp.
is it ok to fit a 240v extractor (as i have the RCBO) or is a 12v required.
i would welcome your thoughts.

 

[ezzzekiel]

providing its suitable for the location (ipx4) then i believe it would be allowed in zone, cant see a problem, would be no more dangerous than electric shower over the bath.

 

[Snapester]

12v SELV Fan. Humidstat would be nice so i would auto kick in dependant on humidity of the location.

 

[D80]

Ventilation equipment is allowed in Zone 1. Check with manufacturers instructions though, and you'll most likely need to fuse it down to 3Amp

 

[GaryM]

230V is fine for Zone 1 if the fan has a minimum rating of IPX4 or IPX5 is there's a chance of water jets hitting it.

 

[telectrix]

heard of peeing in the bath, but would take some doing to hit a fan at 1.5m. LOL.

 

[Guitarist]

As the other guys have said, it's zone 1 and as long as your fan is rated IPX4 or higher then no problem. Ditto what D80 said regarding 3A fusing. Are you fitting a 3-pole isolator btw? Not strictly required but useful.

 

[GaryM]

heard of peeing in the bath, but would take some doing to hit a fan at 1.5m. LOL.

Haha, was thinking more of a shower over the bath which people also use for cleaning the tiles and bath screen etc.

 

[TaffyDuck]

Out of interest does anyone make fused 3-pole fan isolators?

 

[DurhamSparky]

probably not as you would have to Fuse BOTH live conductors and it would make it bulky and it would have to be made larger to fit a 2g back box rather than single...!

 

[Guitarist]

If you have a low-load lighting circuit you can always buy and install one of the new 3 amp MCB's for your bathroom lighting circuit. These are now being manufactured to comply with this fan requirement.

 

[DurhamSparky]

really... never seen a 3a MCB...?

why ya bugger!! thats handy! lol

 

[Guitarist]

really... never seen a 3a MCB...?

why ya bugger!! thats handy! lol

Indeed...Very handy :sunny:

 

[DurhamSparky]

to be honest what is 3a and 6a between friends...!!

 

[Guitarist]

A court case.... The guy who fitted a fan on a 6A MCB and it burnt out causing a fire was prosecuted for not following manufacturers instructions. That is why 3 amp MCB's are now made.