Step1: Turn off power at breaker and verify no voltage with a multimeter tester before beginning work.
Step2: Remove existing switch and carefully label or note wiring connections for correct reinstallation.
Step3: Connect line and load wires to SPST terminals securely, ensuring tight, insulated connections.
Step4: Mount switch into 1/2" panel hole and tighten mounting hardware firmly in place.
Step5: Restore power and test operation, confirming proper on/off functionality.
Step6: Ensure insulation and safety precautions are followed to prevent electrical shock.