Rack PDUs achieve earth ground through their power cords. Final chassis ground is achieved when the power cord is connected to a receptacle, where the ground prong contacts the power receptacle.
For additional grounding, you can attach a chassis earth grounding cable to the rack. The additional ground point allows current leakage to dissipate more efficiently.
Caution - The PDU power input lead cords and the grounding strap must reference a common earth ground. Otherwise, a difference in ground potential can be introduced.
Caution - If you are unsure of the facility PDU receptacle grounding, do not install a ground cable until a proper PDU receptacle grounding has been confirmed. If a difference in ground potential is apparent, you must take corrective action.
The facility PDU must be earth ground.
Caution - During manufacturing, the ground cable attachment area might be a painted surface. Ensure that metal-to-metal solid contact is made for this installation.
The grounding terminal is located under the cabinet between the two rear casters on the inside of the caster plate.