home bbs files messages ]

Forums before death by AOL, social media and spammers... "We can't have nice things"

   alt.engineering.electrical      Electrical engineering discussion forum      2,547 messages   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]

   Message 1,489 of 2,547   
   M-M to Daniel   
   Re: Low voltage switch wiring question   
   07 Jul 15 00:37:06   
   
   From: nospam@ny.more   
      
   In article <121311c7-5da7-43c4-ab3e-ef948a18756e@googlegroups.com>,   
   Daniel  wrote:   
      
   > On Thursday, 28 May 2015 05:50:06 UTC+10, M-M  wrote:   
   > > Hi,   
   > > I have LEDžs over a garage workshop countertop, under the hanging   
   > > cabinets.   
   > >   
   > > I have a toggle switch that I would like to install between the low   
   > > voltage line and the lights.   
   > >   
   > > The toggle switch has 6 lugs. I understand that I donžt use all of them.   
   > >   
   > > Should I simply make the switch break the negative wire while keeping   
   > > the red wires connected, or should I connect the red and the black from   
   > > the power to one set of lugs and the red-black of the lights to the   
   > > other set of lugs?   
   > >   
   > > i.e., do I need to use 4 lugs or can I just use 2?   
   > >   
   > > Thanks   
   > >   
   > > --   
   > > m-m   
   > > http://www.mhmyers.com   
   >   
   > depends what you mean by low-voltage. in the power industry low voltage is   
   > 230/110 v ac   
   > if that is what you have then it's the red live conductors you want be   
   > switching (making and breaking)... not the black neutral. the neutral is   
   > nominally at earth potential and can remain safely connected. if the break is   
   > in the black -neutral side then the lamps may appear off with the live (red)   
   > still connected...  which can be dangerous when changing lamps etc.   
      
   Thanks. It's 12v 1 amp LED strip lighting (the kind that comes on a   
   roll).   
      
   --   
   m-m   
   http://www.mhmyers.com   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]


(c) 1994,  bbs@darkrealms.ca