3.2 Connections Of The Injection Units 7Xt7100 - Siemens SIPROTEC 4/5 Handbuch

3.2 Connections of the Injection Units 7XT7100
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Figure 3-3
(1) Screw terminals
(2) Terminals for cable shielding
(3) Terminals for the protective conductor
Grounding the Device
Protective-conductor terminal:
At least one large-scale copper band or conductor must be screwed at 2 contact points in the lower part of
the rear plate using M4 screws (torque: 1.5 Nm).
Use at least a 4-mm
Shielding:
2 contact points are provided for grounding the cable shield.
Degree of protection IP51 applies to the housing (flush-mounting version) and IP20 to the screw terminals of
the junction block. Degree of protection IP20 applies to the surface-mounting version of the device.
NOTE
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You can use the injection unit 7XT71 in panel surface mounting and in panel flush mounting or cabinet
flush mounting, depending on the order code, see chapter
Screw Terminals for the Junction Block
In as-delivered condition, the screw terminals of the 18-pin junction block on the rear plate are loosened.
SIPROTEC 4/5, Injection unit 7XT71, Manual
C53000-B1174-C128-8, Edition 05.2020
Junction Block and Protective Grounding Terminals
2 protective conductor.
Dimensions and Connections

3.2 Connections of the Injection Units 7XT7100

A.1 Ordering Information and Accessories.
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