Siemens siprotec SJ62, User Manual

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3.1 Mounting and Connections
408
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015
Figure 3-27 Panel flush mounting of a 7SJ635 and 7SJ645 (housing size
1
/
1
). as example
3.1.3.2 Rack Mounting and Cubicle Mounting
To install the device in a rack or cubicle, two mounting brackets are required. The or-
dering codes are stated in Appendix, Section A.1
For housing size
1
/
3
(Figure 3-28) and
1
/
2
(Figure 3-29) there are 4 covers and 4 holes
for securing the device, with housing size
1
/
1
(Figure 3-30) 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 respec-
tively 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.
• Mount the four or six covers.
• 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-section, at least 2.5 mm
2
.
• Connections use the plug terminals or screw terminals on the rear side of the device
in accordance to the circuit diagram. When using forked lugs for direct connections
or screw terminal, the screws, before having inserted the lugs and wires, must be
tightened in such a way that the screw heads are even with the terminal block. 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 in-
formation on wire size, lugs, bending radii, etc. which must be observed.