Reversing direction of a motor
Two single pole relays can easily be wired to move a motor forward, backward, or stop.

SW1 off SW2 off = stop

SW1 on SW2 off = forward

SW1 off SW on = backward

SW1 on SW2 on = stop

The flyback diode protects against spikes, especially if one is using a microcontroller for switching. In that case, some capacitors across the power source may also be needed.







simulate this circuit &ndash; Schematic created using CircuitLab