Connecting Ring-Lug Type Wires; Connecting Protective Earthing - ABB Relion 615 series Installation Manual

Section 5
Connecting
5.2.1
5.3
52
See the application manual for product-specific connection diagrams.

Connecting ring-lug type wires

Ring-lug type insulated terminal can be used for signal connector X120. The
maximum outside diameter for the M4 ring-lug type terminals is 9 mm.

Connecting protective earthing

The earth lead must be at least 6.0 mm
lead is long, the cross section of the wire must be increased.
Use fine copper wire as the earth lead.
To connect a separate earth protection lead:
1. Loosen the protective earth screw (T20) to connect a separate earth protection
lead.
A070772 V1 EN
Figure 40: The protective earth screw is located between connectors
X100 and X110
1MRS756375 K
2
. If the length of the earth
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615 series
Installation Manual