Siemens SIPROTEC 5 Series Hardware Description page 186

Working on the Device
5.7 Installing Current and Voltage Terminals
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Figure 5-27
D (for bolt)
W
L
In order to maintain the insulation route, you must use insulated cable lugs or you must insulate the crimping
zone (for example, by using heat-shrink tube insulation)
Siemens recommends ring-type lugs of the PIDG series made by Tyco Electronics.
Use copper conductors only, at least certified for a temperature of +105 °C. Use prepared solid conductors
intended for single or multi-wiring connection, maximum 2 wires per pole, and for usage of ferrules, crimped-
on pressure wire connectors (ring-type and pin-type).
2 terminal lugs can be installed for each connection.
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Figure 5-28
[dwklest2-030211-01.tif, 1, --_--]
Figure 5-29
You can connect solid conductors as well as stranded-wire conductors with ring-type lug or bootlace ferrule.
For each connection, you can install up to 2 single cables of the same type and the same cross-section.
186
Ring-Type Lug
Example of a Current Terminal with Connection of Cross Connectors and Single Cables
Example of a Current Terminal with Connection of 2 Single Cables
5.0 mm (0.2 in)
9.5 mm (0.37 in)
7.1 mm to 7.7 mm (0.28 in to 0.3 in)
SIPROTEC 5, Hardware Description, Manual
C53000-G5040-C002-C, Edition 10.2017