Question for the electric gurus

jfkal

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17 Aug 2001
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I am looking for a DC switch with the following function.
0 - OFF
1 - Circuit 1 closed an Circuit 2 Open
2 - Circuit 1 closed and circuit 2 closed
What I need is the terminology for this in order to search online.
Many thanks
Joerg
 

andsarkit

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What sort of current rating do you require?
The normal off-1-both-2 battery switch will do this but with an extra position for 1 open , 2 closed. Usual rating is in the hundreds of amps.
For lower power you could use a double pole double throw centre off switch (DPDT). Centre position is off and use the two on positions to either switch one or two supplies on.
switch diagrams
 

jfkal

Active member
Joined
17 Aug 2001
Messages
1,485
Location
Singapore
Visit site
What sort of current rating do you require?
The normal off-1-both-2 battery switch will do this but with an extra position for 1 open , 2 closed. Usual rating is in the hundreds of amps.
For lower power you could use a double pole double throw centre off switch (DPDT). Centre position is off and use the two on positions to either switch one or two supplies on.
switch diagrams
Thanks, but not quite what I need. I need 2 INDEPENDENT circuits. Switch POS 0 both OFF; POS1 Circuit 1 ON, Circuit 2 OFF; POS3 Circuit 1 ON and Circuit 2 ON. See screen shot
 

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