Mounting and Commissioning
3.1 Mounting and Connections
SIPROTEC, 7SJ62/64, Manual
C53000-G1140-C207-2, Release date 01.2008
433
3.1.3.2 Rack Mounting and Cubicle Mounting
To install the device in a rack or cubicle, two mounting brackets are required. he ordering codes are stated in
the Appendix in Section A.1.
For housing size
1
/
3
(figure ) and
1
/
2
(figure) there are 4 covers and 4 holes to secure the device, for size
1
/
1
(figure ) there are 6 covers and 6 securing holes.
• Loosely screw the two mounting brackets in the rack or cubicle with four screws.
• Remove the 4 covers at the corners of the front cover, for size
1
/
1
the 2 covers located centrally at the top
and bottom also have to be removed. Thus the 4 respectively 6 elongated holes in the mounting flange are
revealed and can be accessed.
• Fasten the device to the mounting brackets with four or six screws.
• Put the 4 or six covers back in place.
• Tighten the mounting brackets to the rack or cubicle using eight screws.
• Connect the ground on the rear plate of the device to the protective ground of the panel. Using at least one
M4 screw. The cross-section of the line, here used, must correspond to the maximum connected cross-sec-
tion, at least 2.5 mm
2
.
• Connections are realized via the plug or screw terminals on the rear side of the device according to the circuit
diagram. When using forked lugs for screw terminals or in case of direct connections, the screws must be
screwed in so far that the screw heads align with the terminal block before inserting the lugs and wires. A
ring lug must be centered in the connection chamber in such a way that the screw thread fits in the hole of
the lug. The SIPROTEC 4 System Description provides information regarding maximum wire size, torque,
bending radius and cable relief and must be observed.
Figure 3-27 Installing a device in a rack or cubicle (housing size
1
/
3
)
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