Section 12 Relay Physical Connections - ABB RER620 Technical Manual
Advanced recloser protection and control
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- Applications manual (90 pages) ,
- Manual (60 pages)
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Section 12
12.1
12.2
RER620
Technical Manual
Relay physical connections
All external circuits are connected to the terminals on the rear panel of the relay.
•
Connect each signal connector (X100 and X110) terminal with one 14 or 16 Gauge
wire. Use 12 or 14 Gauge wire for CB trip circuit.
•
Connect each ring-lug terminal for signal connector X120 with one of maximum 14
or 16 Gauge wire.
•
Connect each ring-lug terminal for CTs/VTs with one 12 Gauge wire.
Protective ground connections
Figure 313:
The protective ground screw is located between connectors X100 and
X105
The ground lead must be at least 4.0 mm
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.
Section 12
Relay physical connections
2
and as short as possible.
553
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