Identifying the switches live

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Steveohim
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Identifying the switches live

Post by Steveohim » Mon Jan 29, 2018 11:26 am

I’m changing our rocker switch for a dimmer switch and need to identify the switched live wire. I have an earth, red and black. I’m guessing it’s the black but want to be sure. This is the dimmer switch I’ll be wiring

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wine~o
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Re: Identifying the switches live

Post by wine~o » Mon Jan 29, 2018 5:09 pm

Almost always the black... Buuut if a diyer has had a hand in it at some point. If the wiring at the light is easily accessible then just check that all reds are connected together. if so deffo the black.
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Re: Identifying the switches live

Post by OnlyMe » Mon Jan 29, 2018 6:22 pm

I don't think that it matters.

One cable into L1 and the other into the squiggly terminal.
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Re: Identifying the switches live

Post by wine~o » Mon Jan 29, 2018 6:31 pm

OnlyMe wrote:I don't think that it matters.

One cable into L1 and the other into the squiggly terminal.
Concur buuut was answering the question "Identifying the switched live"
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