Glands for 2.5mm Twin & Earth Cable

Postby jasco » Mon Mar 16, 2009 1:26 pm

I am adding 2 new power sockets to the circuit in my garage. They are metal 2 gang sockets and I am using 2.5mm twin & earth cable. I want to fit glands where the cabling enters the sockets, but haven't used them before and simply need to know the correct fittings. I bought (eBay) a pack of glands coded M12, but these are clearly not correct as they are too small for the 25mm apertures in the sockets. I have checked various suppliers' websites but am not certain from the descriptions which glands are correct. Is it those coded M25? Or M20? Also, is the primary purpose of the glands to prevent dust, moisture, etc. entering the socket, or is it to hold the cable secure, or both of these? Advice greatly appreciated.
Rank: Labourer
Progress to next rank:
Posts: 4
Joined: Wed Feb 11, 2009 2:30 pm


Simply Build It

Postby sparx » Mon Mar 16, 2009 9:45 pm

presuming it is an attached garage as any work in a detached one is covered by bldg regs.
If so then if wiring is surface clipped simple rubber grommets will suffice.
the knockouts in the boxes are 20mm, you could of course use flex type glands for a slightly better seal but still won't completely seal as oval cable/round gland.
Glands are usually only used with flex or steel wire armoured cable which use a brass gland to earth armouring.
Rank: Project Manager
Posts: 2166
Joined: Wed Mar 21, 2007 8:33 pm
Location: The fifth continent.

Display posts from previous
Sort by
Order by

  • DIY How to Project Guides

  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!


  • Related Topics