ABB 615 Series Installation Manual page 42

Section 5
Connecting
34
Use fine copper wire as the ground lead.
To connect a separate ground protection lead:
1. Loosen the protective ground screw to connect a separate ground protection lead.
A070772-ANSI V1 EN
Figure 19: The protective earth screw is located between connectors X100
and X110
The ground lead should be as short as possible but notice that
extra length is required for door mounting.
Each IED must have its own ground lead connected to the ground
circuit connector.
2. Connect the ground lead to the ground bar.
Use either stripped wire screwed between a washer cup and the protective ground
screw or a ring-lug.
1MAC051065-MB C
615 series ANSI
Installation Manual