Pocster Posted January 31, 2023 Share Posted January 31, 2023 Am I correct uk lighting circuits generally have no neutral ? If I remove my wall switch what am I looking for to see if there’s a neutral ? ( 3 wires instead of 2 ??? ) . Trying to sort a smart switch dimmer - but impossible with no neutral …? Link to comment Share on other sites More sharing options...
Declan52 Posted January 31, 2023 Share Posted January 31, 2023 There are some Shelly products where you can install a bypass on the circuit, usually on the actual ceiling rose and that works with no neutral. Link to comment Share on other sites More sharing options...
ProDave Posted January 31, 2023 Share Posted January 31, 2023 If there is literally a 2 core cable connected to the switch then you have "loop at light" wiring. I assume this is one of your HMO's? Most people wire new builds loop at switch now. 1 Link to comment Share on other sites More sharing options...
Pocster Posted January 31, 2023 Author Share Posted January 31, 2023 11 minutes ago, Declan52 said: There are some Shelly products where you can install a bypass on the circuit, usually on the actual ceiling rose and that works with no neutral. Multiple lights wired in parallel I assume Link to comment Share on other sites More sharing options...
Pocster Posted January 31, 2023 Author Share Posted January 31, 2023 5 minutes ago, ProDave said: If there is literally a 2 core cable connected to the switch then you have "loop at light" wiring. I assume this is one of your HMO's? Most people wire new builds loop at switch now. No 🙄 ; on my build ! I took a bedroom socket off the wall ( SWMBO insists on ‘ real ‘ switches in the bedroom ) . Unless I’m wrong - is that indeed a neutral there ?? 😎 Link to comment Share on other sites More sharing options...
ProDave Posted January 31, 2023 Share Posted January 31, 2023 Yes that is loop at switch. the blues in the Wago are the neutral, so if your smart switch needs a neutral that is where it connects to. 1 Link to comment Share on other sites More sharing options...
Pocster Posted January 31, 2023 Author Share Posted January 31, 2023 1 minute ago, ProDave said: Yes that is loop at switch. the blues in the Wago are the neutral, so if your smart switch needs a neutral that is where it connects to. Magic ! My sparky did it right ( I may have told him I need a neutral - I can’t remember ) . Well pleased ! . Once I install quality smart switch from land of the rising sun I can remotely turn the light off to annoy SWMBO ! Link to comment Share on other sites More sharing options...
LnP Posted November 12, 2023 Share Posted November 12, 2023 @ProDave I'll be starting my self build soon, self managed but not DIY, and would appreciate some advice on how I should specify the lighting wiring when getting quotes. I'm not planning smart lighting initially, but would like the option to install it later. Am I right in understanding from this that I need to specify I want neutrals in the switch boxes - loop at switch? Is this required by codes or is it a choice the electrician can make? Thanks Link to comment Share on other sites More sharing options...
ProDave Posted November 12, 2023 Share Posted November 12, 2023 Yes you want to specify "loop at switch" Wiring regs don't specify which method to use, it is choice of the electrician or the client. 1 Link to comment Share on other sites More sharing options...
TonyT Posted November 12, 2023 Share Posted November 12, 2023 Loop line and neutrals at switches and take 3 core and earth to lights. future proofs switch and light position for permanent feed 1 Link to comment Share on other sites More sharing options...
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