UK Changing a light pendant (with 4 wires) to light fitting

[Tristan Perry]

Hello,

I've recently bought four light fittings (to replace the existing simple ceiling light pendants) that look like the following to wire up:

I've already changed two of the four pendants since they are just a single wire coming in (from the other hallway/landing light) so they were simple.

But my other hallway light looks like:

And my other landing light looks like:

So I was wondering how these should be wired up for the new lights? I understand that the 4 wires are: supply for light, supply for next light in circuit, switch line and loop to other light, but I'm a bit confused where the live and neutral cables should go because currently they go into 3 terminal blocks (line, loop, neutral) but the new light will only have 2 terminal blocks (live, neutral) for these?

From what I've read, all neutrals will still go to neutral, and the two line cables are switched live so should go to live, but what about the three loop cables? Do these also go into live, or do I put them in a separate terminal block?

I'm happy to hire an electrician if needed, but I also want to learn more so any advice would be appreciated.

Many thanks for any help you can provide!

 

[Pete999]

L&N IN &OUT, S/L&L, SL &N to next light Maybe does the switch controlling this fitting control another light?

 

[Tristan Perry]

Yes that's correct, both the hallway and landing lights provide power to another light in the hallway/landing (ones with just 1 cable coming into them, and I've already changed these).

 

[westward10]

The three browns in the middle need connecting together but not connecting to the new light, keep them separate. The three blues and the grey go to N of the new fitting, the brown and black go to L of the new fitting and the sleeved green/yellows to earth (The middle terminal). I would recommend getting some Wago connectors as getting all those wires to the new fitting will be very difficult even for an electrician.

 

[Dustydazzler]

As above , in a perfect world all those cables want terminating into wagos and just a single cable to the light connector block....
the good Thing is the new light has a big base so you can hide all the cables neatly inside the base.

 

[telectrix]

@ OP.if youpost a more exact location, one of us may be close to help out, if you need.

 

[Tristan Perry]

Thanks all, that's helpful and understandable I guess it was mainly the three middle browns that were confusing me, but it makes sense to terminate them separately.

I wasn't looking forward to trying to get all cables into the new fitting, so I'll definitely check out wago connectors.

 

[Dustydazzler]

Just remember as you disconnect each cable keep them as they are , i use a small cable tie or some tape to keep the relevant cores together... You don’t want to loose the switch wire with the other browns

 

[telectrix]

Just remember as you disconnect each cable keep them as they are , i use a small cable tie or some tape to keep the relevant cores together... You don’t want to loose the switch wire with the other browns

i usually mark mine wirh a sharpie. 1 line fir pems. 2 lines for switched. or i cut the xposed copper off the switched L's.

 

[westward10]

i usually mark mine wirh a sharpie. 1 line fir pems. 2 lines for switched. or i cut the xposed copper off the switched L's.

Same here I always cut the end off the switch line return.