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Wiring Diagram For 12v LED Vandel Latching Switch

post #1 of 8
Thread Starter 
Hi all
Im looking for some help with a wiring diagram...
im about to sart construcing a switch bourd from one of my acrylic front bay panels, i have 12 blue 12v led vandel latching switchs (The led in switchs are 12v, not 3.2v, they have inbulit resistors).
what im trying to achive is to have a switch for each 12v lighting component.
what i want is to push the button in and the component turns on as well as the led in the switch.
below is a picture of terminals the same as my switches and i have drawn on what i think is the way to do it?????
I have also put a standered picture there, so if im wrong, maybe some one can show me the correct way biggrin.gif



Edited by paulmead85 - 4/3/13 at 4:13pm
post #2 of 8
I am not sure what is connected to what by your picture. I am kind of confused by what is a node and what is not.

Anyways, this is the correct way. Is this what you drew? ( I forgot to show the resistor in series with the LED, just imagine there is a resistor in between the +12 and the LED. )



EDIT: You can put the LED in series with the lighting component (as opposed to in parallel), and I think that is what your drew. You WILL have to change the resistor depending on the resistive load of what your hooking up. Also, you won't really have a 12V output, because of the voltage drop across the diode. It will be more like 11.3V out. So yeah, connect it in parallel (not series) as I drew it. That will avoid these problems.

EDIT 2: I can make this more clear. +12 VDC from your molex connector on com. The "normal open" (NO) should go to TWO places. First place is the + for the diode, second place is the output to your component. Finally, your need TWO ground wires, the first is to the - for the diode, the second is for the - of your component.
Edited by crimsontears809739 - 4/3/13 at 10:11am
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post #3 of 8
Thread Starter 
the drawing i have there is the back of the switch (obviously lol) but i have just drawn on the picture what i think is the way to do it, the led is actually part of the switch as shown below, it dosent need a reistor as the switch has one inbult into it. ive purchased the 12v switches most likely for cars and not the 3.2v switchs which require a resistor to prevent damage to the led inside the switch.



so what i have drawn is a postive and negative feed from the molex going to the switch to power the led inside the switch, and what i hope looks like a paralel circuit. ????? just dont know if what i have drawn wil work?????
post #4 of 8
Thread Starter 


just a couple of "x" to show where i would solder to
Edited by paulmead85 - 4/3/13 at 4:19pm
post #5 of 8
That will work, although it's more common to connect the black (common) wire through the switch.
post #6 of 8
Thread Starter 
aw ok, well looks like im on the right track atleast, so i should do it more like this??

post #7 of 8
Yep. That's the preferred method.
post #8 of 8
Quote:
Originally Posted by paulmead85 View Post



just a couple of "x" to show where i would solder to

Thanks for putting the little X's to show the nodes! I misunderstood stood your diagram. You were right all along. . X-D Yes, that is correct. Sorry. thumb.gif
Quote:
Originally Posted by paulmead85 View Post

aw ok, well looks like im on the right track atleast, so i should do it more like this??


It is a "best practice" to break the power, and not the ground. That way your fans are not electrified while off, it's more of a safety/protection thing. But, yes, that way works too.
Edited by crimsontears809739 - 4/4/13 at 9:04am
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