33
A040186
Fig. 5.1.-2
Snap ferrite ring installed
5.2.
Electrical connections
All connections are made on the rear of the case. No soldering is needed.
Each signal connector (X3.1 and X4.1) terminal is dimensioned for one
0.2...2.5 mm
2
wire or two 0.2...1.0 mm
2
wires.
Connect the wires from the CTs/VTs to the right device according to the
phase order and the connection diagram. Each terminal for CTs/VTs is
dimensioned for one 0.5...6.0 mm
2
wire or for two maximum 2.5 mm
2
wires.
A separate earth lead of at least 2.5 mm
2
has to be connected from the
protective earth screw between connectors X4.1 and X3.1 (the upper screw;
see Fig. 5.2.-1) to the earth bar.
When using RTD sensors or thermistors for REM 610, use a double shielded
cable. Connect the cable shields to the chassis earth screw between
connectors X4.1 and X3.1 (lower screw; see Fig. 5.2.-1).
Terminals on the optional communication modules for RS-485 (see
Fig. 5.2.-1 and Fig. 5.2.-3) are dimensioned for one 0.08...1.5 mm
2
wire or
for two maximum 0.75 mm
2
wires.
1MRS752265-MUM
Protection Relay
Installation Manual
RE_ 610
