Mounting and Commissioning
3.1 Mounting and Connections
SIPROTEC, 7SD80, Manual
E50417-G1140-C474-A1, Release date 09.2011
249
3.1.3.2
Panel Flush Mounting
The housing (housing size
1
/
6
) has 2 covers and 4 fixing holes.
• Remove the 2 covers at the top and bottom of the front cover. Thus, 4 elongated holes are revealed in the
mounting bracket and can be accessed.
• Insert the device into the panel cut-out and fasten it with four screws. For dimensional drawings, refer to
Section 4.19.
• Mount the 2 covers again.
• Connect a solid low-ohmic protective and operational ground to the grounding terminal of the device. The
cross-section of the cable used must correspond to the maximum connected cross-section but must be at
least 2.5 mm
2
.
• Connections are to be established via the screw terminals on the rear panel of the device in accordance with
the circuit diagram. The details on the connection technique for the communication modules at the bottom
of the device (port A and port B) in accordance with the SIPROTEC 4 System Description and the details on
the connection technique for the current and voltage terminals on the rear of the device in the Sections „Con-
nections of the Current Terminals“ and „Connections of the Voltage Terminals“ must be strictly observed.
Figure 3-12
Panel flush mounting of a 7SD80