Siemens siprotec 7SA522 - Page 460

Installation and Commissioning
8-4 7SA522 Manual
C53000-G1176-C119-2
Rack Mounting and
Cubicle Mounting
In the housing size
1
/
2
(Figure 8-3) there are 4 covers and 4 securing slots, with the
housing size
1
/
1
(Figure 8-4) there are 6 covers and 6 securing slots available.
To install the device in a frame or cubicle, two mounting brackets are required. The
ordering codes are stated in the appendix in Section 1.1.1.
q Loosely screw the two mounting brackets in the rack with four screws.
q Remove the 4 covers at the corners of the front cover, for size
1
/
1
the 2 covers lo-
cated centrally at the top and bottom also have to be removed. The 4 respectively.
6 slots in the mounting flange are revealed and can be accessed.
q Fasten the device to the mounting brackets with four or six screws.
q Replace the four or six covers.
q Tighten the mounting brackets to the rack using eight screws.
q Connect the ground on the rear plate of the device to the protective ground of the
rack. Use at least one M4 screw for the device ground. The cross-sectional area of
the ground wire must be greater than or equal to the cross-sectional area of any oth-
er control conductor connected to the device. Furthermore, the cross-section of the
ground wire must be at least 2.5 mm
2
.
Figure 8-3 Installing a 7SA522 in a rack or cubicle (housing width
1
/
2
of 19 inch rack)
SIEMENS
SIPROTEC
1 2
6
3
+/-0
54
7 8 9
7SA522
RUN ERROR
MENU
ESC
LED
ENTER
F4
F1
F2
F3
0$,10(18 01/04
Annunciation 1
Measuring 2
Mounting bracket
Mounting bracket