I need electric help! --- How to reverse polarity?
I have a 2-wire door lock actuator and a float switch.
When the float switch turns on I need the actuator to move one way. When the float switch turns off I need the actuator to move the OTHER way. So I need a way to reverse the polarity of the actuator through a relay somehow. Anyone know how?
Actuator has 2 wires (+ and -)
Float Switch has 2 wires (+ and -)
I need a relay or something in between??
|