I'm assuming it's 12VDC for your vanagon? You need a SPDT switch because you
will only be switching the 12V side.

FYI:
SPST = on/off
SPDT = on/on or on/off/on if it has a center position
DPXX = same as above but switches 2 separate legs or circuits at the same
time.

Center leads will be common or in your case power coming in - 2 outside
leads will be switched or power to the 2 appliances.

Tom
www.kegkits.com
www.stir-plate.com
www.towercooler.com

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf Of
Troy
Sent: Sunday, April 11, 2010 12:26 PM
To: vanagon@GERRY.VANAGON.COM
Subject: SPDT or DPDT switch?

Hi folks:

Just a quick question about switches: I need a switch that when toggled in
one position will operates one appliance, and when toggled in the other
position will operates a second, different appliance. Do I need a single
pole double throw switch, or a double pole, double throw switch? I'm
guessing the latter, but wanted to doublecheck. The SPDT would operate two
appliances at the same time then presumably vs a SPST? Just a bit confused
here on how these work.

Thanks,

Troy