5.2. Wiring Diagram

The typical way to connect the Pololu RC Switch with Isolated Solid State Relay is shown in the diagram below:

Typical wiring diagram for the Pololu RC Switch with Isolated Solid State Relay/Switch, SPST.

The switch is symmetrical and bidirectional, so it can be connected on the high side or low side and used with AC or DC supplies.

For inductive loads powered from a DC supply, a flyback diode (also called a freewheeling diode) can be connected across the load as shown below to reduce inductive voltage spikes when the switch turns off.

Typical wiring diagram for the Pololu RC Switch with Isolated Solid State Relay/Switch, SPST when using a DC load supply with an inductive load.