Section 5
Connecting
5.1
Required tools
Only use a screwdriver and insert bits for Phillips (PH 2) cross-recessed head screws when
handling CT/VT terminals of screw-compression type.
5.2
Connecting wires
All connections are made on the rear of the case. No soldering is needed.
•
Connect each signal connector 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.
See the application manual for product-specific connection diagrams.
5.3
Connecting protective grounding
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.
Use fine copper wire as the ground lead.
To connect a separate ground protection lead:
1MAC457436-IB B
Section 5
Connecting
620 series ANSI
37
Installation Manual