Clipsal 30M Light Switch

[Mad_Doctor_X]

Hello!

Looking for a bit of reassurance before I plod on...
I've got at clipsal 30M two-way light switch in front of me and it has four connections on the back of it. Three of them are labelled 'Common', 'L' and '1' so my thinking is that the L and the 1 are essentially L1 and L2. But the fourth connection has a small piece of breakable plastic blocking access to it and is labelled as either '3', or more probably 'T'. Any ideas as to what the fourth terminal is for would be most welcome!

Cheers

 

[electronicsuk]

An intermediate model of the same switch?

 

[Mad_Doctor_X]

An intermediate model of the same switch?

Nah! I've got one of those and that hasn't got any labelling next to the terminals at all!!
(It's on a label around the terminal block!)

 

[Taylortwocities]

Send us a pic, but I think that a couple of minutes with a continuity tester should tell you all you need to know

 

[Mad_Doctor_X]

Send us a pic, but I think that a couple of minutes with a continuity tester should tell you all you need to know

Doh! Thanks for that.
Continuity testing revealed that 'common', '1' and the plastic covered 'T' are Common, L1 and L2. The terminal marked 'L' is not in continuity with anything regardless of the position of the switch. While fiddling with it I noticed that the terminal is a little thicker than the others (see below).

Clipsal 30M Light Switch

• Mad_Doctor_X
• 7 Jun 2009
• 1

Terminals, clockwise from top. 'Common', '1', 'L' and 'T'

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[Taylortwocities]

Ahh.

L probably then is for "loop". Used to bring a live (or neutral) in and then out again without it being a part of the switch function.