Siemens SIPROTEC 7SJ80 Product Information

18 SIPROTEC 7SJ80 / 7SK80 V4.60, Product Information
E50417-K1150-C342-A6, Edition 07.2010
Connection of the temperature sensors
Remove the external insulation from the shielded cable over a length of
approx. 7 cm (2.8 in).
Cut the cable shielding to approx. 4 cm in length and protect the open end
by means of a shrink tube, insulating tape or a similar material. Make sure
that the approx. 1 cm (0.39 in) of the shielding remains open for the
grounding.
Remove the internal insulation of the signaling leads over a length of
approx. 1 cm (0.39 in).
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.
Clamp the free part of the cable shielding underneath the cable clamp
next to the connector on the shield cap.
Next, plug the complete clamp into the retaining clips on the rear panel.

Siemens SIPROTEC 7SJ80 Specifications

General

Rated Frequency	50/60 Hz
Rated Current	1 A / 5 A
Operating Temperature	-25°C to +55°C
Storage Temperature	-40°C to +70°C
Current Transformer Inputs	4
Application	Protection of feeders, motors, transformers, and generators
Rated Voltage	100-240 V AC/DC
Communication Protocols	IEC 61850, Modbus, DNP3, IEC 60870-5-103
Display	Graphical LCD
Mounting	Flush mounting
Protection Functions	Overcurrent, Earth fault
Communication Interfaces	Ethernet, RS485
Housing	Plastic
Weight	Approx. 1.5 kg