ABB RELION 611 Series Technical Manual page 508

Section 11
Protection relay's physical connections
11.2
11.3
11.4
502
Protective earth connections
GUID-9AF57ED6-2BF2-45F6-BC6C-DEF12DB9A899 V1 EN
Figure 253: The protective earth screw is located between connectors X100 and
X110
The earth lead must be at least 6.0 mm
Binary and analog connections
All binary and analog connections are described in the product
specific application manuals.
Communication connections
The front communication connection is an RJ-45 type connector used mainly for
configuration and setting.
Depending on order code, several rear port communication connections are available.
1MRS757454 D
2
and as short as possible.
611 series
Technical Manual