ABB RELION 620 Series Technical Manual page 896

Section 14
Protection relay's physical connections
14.2
14.3
890
Protective ground connections
GUID-F8DEDEBF-0193-4E5D-A317-DA79C38D5B2B V1 EN
Figure 460: The protective ground screw is located between connectors X100 and
X105.
The ground lead must be at least a 10 Gauge wire. If the length of the
ground lead is long, the cross section of the wire must be increased.
Communication connections
The front communication connection is an RJ-45 type connector used mainly for
configuration and setting.
1MAC504801-IB E
620 series ANSI
Technical Manual