Siemens siprotec 7SA522, User Manual

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Installation and Commissioning
8-2
7SA522 Manual
C53000-G1176-C119-2
8.1 Mounting and Connections
Requirements Verification of the ratings of the 7SA522 according to Sub-section 3.2.1 as well as
matching to ratings of the external equipment must have been completed.
8.1.1 Installation
Panel Flush
Mounting Depending on the version of the device, the housing width may be
1
/
2
or
1
/
1
of a 19
inch rack. For the size
1
/
2
(Figure 8-1) there are 4 covers and 4 holes for securing the
device, with size
1
/
1
(Figure 8-2) there are 6 covers and 6 securing holes.
q
Removal of the 4 covers located on the corners of the front cover, for size
1
/
1
the 2
additional covers located centrally at the top and bottom, reveal the 4 respectively
6 slots in the mounting flange.
q
Insert the device into the panel cut-out and fasten with four or six screws. Refer to
Figure 10-5 or 10-6 in Section 10.18 for dimensions.
q
Replace the four or six covers.
q
Connect the ground on the rear plate of the device to the protective ground of the
panel. 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
other control conductor connected to the device. Furthermore, the cross-section of
the ground wire must be at least 2.5 mm
2
.
q
Connect the plug terminals and/or the screwed terminals on the rear side of the de-
vice according to the wiring diagram for the panel.
When using forked lugs or directly connecting wires to screwed terminals, the
screws must be tightened so that the heads are even with the terminal block before
the lugs or wires are inserted.
A ring lug must be centred in the connection chamber so that the screw thread fits
in the hole of the lug.
Section 2.1 has pertinent information regarding wire size, lugs, bending radii, etc.
Warning!
The successful and safe operation of the device is dependent on proper handling, in-
stallation, and application by qualified personnel under observance of all warnings and
hints contained in this manual.
In particular the general erection and safety regulations (e.g. IEC, ANSI, DIN, VDE,
EN or other national and international standards) regarding the correct use of hoisting
gear must be observed. Non-observance can result in death, personal injury, or sub-
stantial property damage.