Siemens SIPROTEC 4 7XT71 Mode D'emploi page 17

Table 7-1 Terminal strip
Terminal
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18
1
: connection at device 1;
Connection data for cable lugs and conductors
NOTE
If you use ring-type or fork-type cable lugs with non-insulated crimp zone or cable
end sleeves with non-insulated crimp zone, the crimp zone must be insulated with
a heat-shrink insulation in order to observe the insulation distances.
Use only copper cables!
Table 7-2 Connection data for cable lugs and conductors
Inside diameter
Outside diameter
Conductor cross-
sections
Tightening torque
Connection with solid conductors or stranded wire conductors with cable end sleeve
Conductor cross-
sections
Stripping length
Tightening torque
SIPROTEC 4, Injection Unit 7XT71, Product Information
C53000-B1175-C128-1, Edition 01.2014
Neutral conductor N (-)
Auxiliary voltage L (+)
2
: connection at device 2
Connection with cable lugs
4 mm
max. 10 mm
2
1.0 mm to 2.6 mm
AWG 16 to AWG 14
1.8 Nm
2
0.5 mm to 2.6 mm
AWG 20 to AWG 14
9 mm to 10 mm
1.8 Nm
Designation
Siemens recommends cable-end sleeves
from Tyco Electronics AMP:
Ring-type cable lugs: PIDG PN 320565-0
2
;
Fork-type cable lugs: PIDG PN 321233-0
2
; Note:
Plug the end of each conductor into the
terminal chamber in a way that ensures
that it is drawn into the terminal chamber
when tightening the screw terminal.
Cable end sleeves are required when us-
ing stranded wire cables.
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