Vehicle & Technical > Discovery
Wiring in an extra cigar lighter socket
Steven:
--- Quote from: "thermidorthelobster" ---Pop into Maplins and have a look at their switches; you should be able to get a 12v switch that works just like a normal switch, with only 2 connections, that lights up. This sort of thing:
http://www.maplin.co.uk/Module.aspx?ModuleNo=43005&criteria=12v%20switch&doy=28m8
Re the fuse, what are you looking at hanging off the socket?
--- End quote ---
Do you mean what are we planning to plug in?
Steven:
Also all light switches has 3 connections. Also like the one you just shown ^^
thermidorthelobster:
Sorry, you're right, the switch has 3 connections: 1 for the 12v feed, one for the switched output, and one to earth, otherwise the light wouldn't work :oops:
Yep, the fuse rating will depend on what you want to run off the socket. Your fridge would pull quite a large current (which should be shown in amps on the side of it somewhere) as would a tyre compressor, but a phone charger wouldn't.
Steven:
Cheers :)
Thanks for your time mate, much appreciated!
SteveGoodz:
--- Quote from: "thermidorthelobster" ---Yep, the fuse rating will depend on what you want to run off the socket.
--- End quote ---
Um, no, actually. The fuse rating depends on the current capability of the wiring - the fuse is there to protect the cables from burning out NOT to protect the load. You should rate the cables to take the maximum current that you will need to run whatever you're plugging in and then use the correct fuse for that cable.
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