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I'm fitting a bathroom light which has live and neutral backstab connectors, both of which only accept a single wire. I need to connect two neutral wires though - the previous fitting had them both connected through a standard screw fitting.

Is there a standard way to handle this? If I connect the two neutrals using a three way connector along with another wire, and then connect that wire to the light, will it work or will I be burning down my house?

  • I would use a wirenut to bring them together with a stub that goes into the connector. Have you considered that? – SDsolar Jul 18 '17 at 4:01
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Do the backstabs accept 14 AWG only? Are the bathroom receptacles on the circuit? You cannot use the lamp, bathroom receptacles must be 20A and 14 AWG wire is not legal on 20A circuits. If it has screws, use them - backstabs are bad news anyway.

Ok, so get a 6 inch length of correct size Romex. Strip it down for the hot, neutral and ground wire. Use those to connect to the single terminal on the lamp. This seems like it makes things worse because now you have 3 black wires and 3 white wires to connect instead of only 2. Get wire nuts or other type of splice connector which accommodates 3 wires.

  • Sounds good - there are no outlets in the bathroom so should be good to use the lamp as is – rbennett485 Jul 17 '17 at 9:44
  • @JimStewart this is the original wiring, except the only connector was for the three lives - the two neturals were wired directly into the light under the same screw, and the single live was wired directly in – rbennett485 Jul 17 '17 at 13:55
  • Is the light fixture controlled by a wall switch or a pull chain? – Jim Stewart Jul 17 '17 at 15:32
  • I just realized this is in the UK, right? So that is why I don't understand the wiring. My brother is an electrical engineer (US trained) who has had some experience with UK power systems. He tells me that UK systems are different and in important ways better than ours in the US. He has told me that the US, being the original world leader in electrification, standardized before Europe which then got the benefit of seeing the results of some of our choices which were sub-optimal. – Jim Stewart Jul 17 '17 at 15:56
  • @JimStewart True. In this case he is dealing with a standard ceiling rose (well that's what he linked anyway) -- this 3/3/2 arrangement elegantly handles 1) supply 2) switch 3) lamp proper and d) something downstream: either a) always-hot to something else, or b) a switched lamp also on this switch. The hot and neutral going downstream go on the 3-void splices, the rest is hooked up depending on a) or b). – Harper Jul 17 '17 at 16:08

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