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SIPROTEC 7SJ81/7SK81 V4.70, Product Information
E50417-K1150-C462-A2, Edition 02.2012
When connecting single wires, the following cross-sections are allowed:
With vertically arranged terminal points, single conductors and short cir-
cuit links (order no. C53207-A406-D194-1) can be connected together.
Make sure that the short circuit links are connected in alternate sides.
Mechanical Requirements
The fixing elements and the connected components are designed for the
following mechanical requirements:
Connection of the Temperature Sensors
Connection of the Temperature Sensors (7SK815 and 7SK816 only)
Remove the external insulation from the shielded cable over a length of
approx. 7 cm.
Cut the cable shielding to approx. 4 cm in length and protect the open end
with a shrink tube, insulating tape or a similar material. Make sure that
approx. 1 cm of the shielding remains open for the grounding.
Remove the internal insulation of the signaling leads over a length of
approx. 1 cm.
Crimp appropriate conductor sleeves onto the ends of the inner conduc-
tors.
Guide the cables through the openings of the shield cap and then connect
the inner conductors as shown in the wiring diagram.
Plug the cap onto the voltage terminals.
Wire cross-sections:
AWG 20-14
(0.5 mm
2
- 2.0 mm
2
)
Conductor sleeve with plastic sleeve
L = 10 mm (0.39 in) or
L = 12 mm (0.47 in)
Stripping length:
(when used without conductor sleeve)
12 mm (0.47 in)
Only copper wires may be
used.
Permissible tightening torque at the terminal
screw
1.0 Nm (8.85 lb.in.)
Permissible traction per connected conduc-
tor
50 N based on IEC 60947-1
(VDE 660, Part 100)
