I have bought an Auro eco 100MST fan for bathroom ventilation: There was already a suitable 100mm passive vent duct fitted, but it was only 2.15 metres above the bath, in Zone 1. The electrician I asked to connect it up said that it really had to be in Zone 2 as it was not a SELV fan. I told him we had a new consumer unit fitted only a couple of years ago, with a 30mA breaker on it, but he was still unhappy about fitting the fan and certifying the installation (it has not yet been installed). I have since tried to check what Part P requires, and can see why he was more than a bit doubtful. On the internet there seem to be many conflicting views about the requirements, and some comments seem to contradict themselves! So what do those here think? Can a 230v IPX4 fan connected to a 30mA breaker be installed in Zone 1 in a bathroom and still comply with Part P?

Only if the manufacturer says so. see note 3

IPX4 fan suitable for Zone 1?

Nov 15, 2014 23 Replies

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Jeff Layman 11 years ago

A couple of useful ideas there - thanks.

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Jeff Layman 11 years ago

Just got a reply: "The Aura eco fans are IPX4 mains powered fans, and are not suitable for mounting in Zone 1. They should only be mounted in Zone 2 or beyond."

Nice to get a clear reply.

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ARW 11 years ago

Thanks for leting us know.

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ARW 11 years ago

If drilling from the inside you should - after removing the inner core be able to pack rockwoll etc into the cavity to stop the beads spilling out.

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