Attach a 6 AWG stranded copper wire to the grounding terminal on the switch. The switch chassis is connected internally to 0 V. This safety measure provides a low-impedance path for fault current to return to the source, ensuring circuit breakers trip. Proper grounding (earthing, bonding) methods are critical to ensuring the integrity of your electrical system. In part three of my 7-part video series on how to wire a switch, I demonstrate the proper way to connect the ground wires. Failure to install these connections properly can result in shock, fire, or, most certainly, power quality problems. This conductor is fundamental for electrical safety, providing a safe route for fault current to travel when an issue occurs, such as a hot wire.
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