Hi
So I am planning to replace my living room light switch with a smart switch such as this https://www.diy.com/departments/wif...eded-black-body/5060774555408_BQ.prd?alt=true
The existing switches have 2 gangs (for 2 lights) - each with T&E to the fitting with a live common and switched return like this: -
This makes sense and is like wiring 2 different wires to 2 different switches, but in the same enclosure. Though I'm aware it's also common to have a single hot feed in and "jumper" to the second common terminal to feed the second light in some 2-gang switches.
I have another switch in the house (outside bathroom) that looks like this, whereby there's what appears to be 2 x T&E but also a jumper in place between the 2 commons: -
So when replacing the switches, they generally only have a single common with multiple switched outs as per the diagram below. The question is what should I do with the "other" common feed to the switch (blobbed in blue below)...
For the second one above I assume I simply connect both commons into the single common on the new switch (as they're bridged already). For the other however, do I need to bridge those too, or simply use one of the feeds and put a closed-end terminal on the second and don't use?
And regarding the above - will there be a reason for the 2 different configurations? For example the first one I know each feed is "hot" from my tester - I haven't done the same on the other switch yet, but could that be that the hot is routed "through" this switch to the next light and that's why it's bridged in this case but not the other? I do know there is a separate ceiling fan off this switch powered when one of the lights is on (via an isolating switch) so could it be to do with that?
Thanks
So I am planning to replace my living room light switch with a smart switch such as this https://www.diy.com/departments/wif...eded-black-body/5060774555408_BQ.prd?alt=true
The existing switches have 2 gangs (for 2 lights) - each with T&E to the fitting with a live common and switched return like this: -
This makes sense and is like wiring 2 different wires to 2 different switches, but in the same enclosure. Though I'm aware it's also common to have a single hot feed in and "jumper" to the second common terminal to feed the second light in some 2-gang switches.
I have another switch in the house (outside bathroom) that looks like this, whereby there's what appears to be 2 x T&E but also a jumper in place between the 2 commons: -
So when replacing the switches, they generally only have a single common with multiple switched outs as per the diagram below. The question is what should I do with the "other" common feed to the switch (blobbed in blue below)...
For the second one above I assume I simply connect both commons into the single common on the new switch (as they're bridged already). For the other however, do I need to bridge those too, or simply use one of the feeds and put a closed-end terminal on the second and don't use?
And regarding the above - will there be a reason for the 2 different configurations? For example the first one I know each feed is "hot" from my tester - I haven't done the same on the other switch yet, but could that be that the hot is routed "through" this switch to the next light and that's why it's bridged in this case but not the other? I do know there is a separate ceiling fan off this switch powered when one of the lights is on (via an isolating switch) so could it be to do with that?
Thanks
