Light switch L2, com , L1 ??

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cerenko
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Light switch L2, com , L1 ??

Post by cerenko » Sun Oct 07, 2018 1:47 pm

Replacing lights switches, all the old ones say , live , neutral , earth , no problem but new ones say L1, L2 and com . all I need to know is which is the live neutral and earth on the new switch . cheers
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someone-else
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Re: Light switch L2, com , L1 ??

Post by someone-else » Sun Oct 07, 2018 2:32 pm

Light switches don't have Live Neutral and Earth, if they did it would go BANG when you operate the switch.

So, what do your old switches say?

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Re: Light switch L2, com , L1 ??

Post by cerenko » Tue Oct 09, 2018 10:37 am

So do I just not use the earth in the new plastic switches ??
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Re: Light switch L2, com , L1 ??

Post by cerenko » Tue Oct 09, 2018 10:48 am

New swith
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yartin
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Re: Light switch L2, com , L1 ??

Post by yartin » Tue Oct 09, 2018 11:54 am

I am not electrician but changed light switches in my home in the past by copying wiring from old to new switches.
L1 and COM is used on your old switch and you have those 2 connectors on your new switch. The yellow/green is earth but not on new plastic switch and can connect onto the back metal box. Make sure mains is off from consumer unit before doing the work.

You use L1 and L2 to control light from 2 switches as in head and foot of staircase.
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Re: Light switch L2, com , L1 ??

Post by big-all » Tue Oct 09, 2018 1:54 pm

the choice off l1 or l2 will dictate if it on /off in the up/in position
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Re: Light switch L2, com , L1 ??

Post by wine~o » Thu Oct 11, 2018 4:23 pm

Red to com, black (switched live) to L1 earth to back box.
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Re: Light switch L2, com , L1 ??

Post by OnlyMe » Thu Oct 11, 2018 5:36 pm

wine~o wrote:Red to com, black (switched live) to L1 earth to back box.

That is the important bit. The black is NOT a neutral in a lightswitch.
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