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Post by Deleted on Feb 28, 2019 21:24:55 GMT
I'm trying to fit a switch to turn on/off my 4g modem/router and have been struggling to find a wall switch that is specifically for 12v. Midland Chandlers has this www.midlandchandlers.co.uk/store/product/vs-215.aspx which suggests it works with 240v as well. I've just picked up a 240v 20a switch from screwfix and wondering if there's any reason why it wouldn't work with my router? The router requires 12v, 1a supply. Any thoughts? Cheers!
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Post by Telemachus on Feb 28, 2019 21:30:35 GMT
I'm trying to fit a switch to turn on/off my 4g modem/router and have been struggling to find a wall switch that is specifically for 12v. Midland Chandlers has this www.midlandchandlers.co.uk/store/product/vs-215.aspx which suggests it works with 240v as well. I've just picked up a 240v 20a switch from screwfix and wondering if there's any reason why it wouldn't work with my router? The router requires 12v, 1a supply. Any thoughts? Cheers! It will be fine. Typically the AC rating for a switch is higher than the DC rating but at 1A (max) the router’s current is way below the AC switch rating.
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Post by Deleted on Feb 28, 2019 21:37:38 GMT
I'll give it a go. Need to figure out what goes where. Positive to live, negative to neutral? Just a stab in the dark!
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Post by TonyDunkley on Feb 28, 2019 21:54:07 GMT
I'll give it a go. Need to figure out what goes where. Positive to live, negative to neutral? No, . . wiring in a switch like that will simply create a short circuit when you switch on. Put the switch in the live 12V DC feed to the gadget - ie. same colour coded (live) cable into both connections on the switch, but don't use the earth terminal for either of them.
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Post by Mr Stabby on Feb 28, 2019 21:55:34 GMT
I'll give it a go. Need to figure out what goes where. Positive to live, negative to neutral? Just a stab in the dark! If it's a simple two-connector on/off switch then it doesn't matter which way round you wire it.
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Post by JohnV on Feb 28, 2019 22:00:08 GMT
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Post by TonyDunkley on Feb 28, 2019 22:04:19 GMT
I'll give it a go. Need to figure out what goes where. Positive to live, negative to neutral? Just a stab in the dark! If it's a simple two-connector on/off switch then it doesn't matter which way round you wire it. A bit of technically correct but utterly worthless advice , . . connecting positive and negative to the two sides of a switch WILL create a dead short, whichever way round the connections are made !
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Post by TonyDunkley on Feb 28, 2019 22:10:06 GMT
I stand corrected, John, . . I'd wrongly assumed it was a single pole switch.
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Post by Telemachus on Feb 28, 2019 22:16:48 GMT
I'll give it a go. Need to figure out what goes where. Positive to live, negative to neutral? Just a stab in the dark! Positive to one of the connections, the other connection to the positive on the modem router. The negative on the modem router direct to the boat negative supply. If there are 4 connections on the switch, choose the two lives or the two neutrals.
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Post by Mr Stabby on Feb 28, 2019 22:17:14 GMT
If it's a simple two-connector on/off switch then it doesn't matter which way round you wire it. A bit of technically correct but utterly worthless advice , . . connecting positive and negative to the two sides of a switch WILL create a dead short, whichever way round the connections are made ! Of all the complete and total bollocks you have ever spouted here, this has to take the biscuit. The OP is looking to provide an on/off switch for a router. To suggest that placing such a switch in between the power supply and the router will create a dead short simply shows that your understanding of electrics is about on a par with your understanding of diesel engines. The description of you on CWDF as "a knobhead through and through" really is bang on the money.
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Post by JohnV on Feb 28, 2019 22:27:14 GMT
A bit of technically correct but utterly worthless advice , . . connecting positive and negative to the two sides of a switch WILL create a dead short, whichever way round the connections are made ! Of all the complete and total bollocks you have ever spouted here, this has to take the biscuit. The OP is looking to provide an on/off switch for a router. To suggest that placing such a switch in between the power supply and the router will create a dead short simply shows that your understanding of electrics is about on a par with your understanding of diesel engines. The description of you on CWDF as "a knobhead through and through" really is bang on the money. that applies to you ..... a knobhead through and through ..... don't throw your idiot advice in because you don't like Tony ....... all you do is muddy the waters, read what the op posted and think what could happen
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Post by Mr Stabby on Feb 28, 2019 22:32:50 GMT
Of all the complete and total bollocks you have ever spouted here, this has to take the biscuit. The OP is looking to provide an on/off switch for a router. To suggest that placing such a switch in between the power supply and the router will create a dead short simply shows that your understanding of electrics is about on a par with your understanding of diesel engines. The description of you on CWDF as "a knobhead through and through" really is bang on the money. that applies to you ..... a knobhead through and through ..... don't throw your idiot advice in because you don't like Tony ....... all you do is muddy the waters, read what the op posted and think what could happen Imagine the following. We have a 12v battery, a 12v lamp, and two lengths of wire. We connect the 12v lamp to the 12v battery using the two lengths of wire. It illuminates. We now cut the feed wire (or the return wire, it really doesn't matter) and place an on/off switch in the circuit. How the fuck can that create a dead short?
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Post by JohnV on Feb 28, 2019 22:34:20 GMT
you really are a dip shit ..... it is a double pole switch it switches both positive and negative
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Post by Telemachus on Feb 28, 2019 22:40:40 GMT
you really are a dip shit ..... it is a double pole switch it switches both positive and negative It doesn’t have to. And no point in breaking the negative wire just to pass it through the switch.
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Post by Deleted on Feb 28, 2019 22:43:20 GMT
That's the one! Thanks John, I'll give that a go tomorrow.
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