- Joined Feb 29, 2016
I'm trying to wire up a simple circuit to reverse a motor using a DPDT switch and a 12 VDC motor (see attached for wiring diagram I'm using). When I wire the motor directly to my bench power supply, it works just fine. If I manually change the polarity of the wires, the motor reverses like you would expect. However, when wiring up the DPDT switch, the motor only runs in one direction. Flip the switch to the other side of "OFF/CENTER" and...nothing. Multimeter doesn't so much as twitch. I've doubled checked all the wiring connections on the switch and everything seems fine. The switch is new and is rated 20A 125 VAC. I thought I'd check with the experts here to find out if there's anything else I should be checking, whether they also think the switch is bad, or perhaps it's not an appropriate switch for my application?