Grounding the Switch Chassis

1. Verify that the DC circuit is de-energized.
2. Identify the grounding lug on the rear of the switch.
   The grounding lug is identified by the international symbol for earth ground:
3. Attach the ground wire to the grounding lug as follows.
   Use stranded copper wire, sized between 14 AWG and 6 AWG.
   1. At one end of the ground wire, strip the insulation to expose 12 mm (1/2 in) of bare wire.
   2. Insert the stripped wire into the grounding lug.
   3. Using a straight-tip torque screwdriver, tighten the retaining screw to 2.25 N m (20 in‑lb).
4. Connect the other end of the wire to a known reliable earth ground point at your site.