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Introduction
1
1 - 2
Siemens AG ⋅ May 1998
1.2 Data for selection and ordering
Table 1.1 gives an overview of the available variants
of the components (master unit, bay units) of the proĆ
tection system 7SS52 and their ordering codes.
Necessary ancillary devices and the available docuĆ
mentation for their application with corresponding
ordering codes are added.
Table 1.1 Data for selection and ordering
Order-no.
Distributed busbar and circuit breaker failure protection SIPROTEC 7SS52
MASTER UNIT
1
7SS52
8 9 10 11 16
00- 0-0AA
Nominal auxiliary voltage converter
DC 48, 60 V
DC 110, 125 V
DC 220, 250 V
3
4
5
Mechanical design
in subrack ES902C
in surface-mounted casing
in 8MF cubicle
A
B
F
Fitted for
8 bays
16 bays
24 bays
32 bays
40 bays
48 bays
A
B
C
D
E
F
Fitted alarm modules
16 alarms
32 alarms
1
2
Communication language
German
English
1
2
Order-no.
BAY UNIT
1
7SS52
789 13
1 - A00- AA0
Nominal current at 50/60 Hz
1A
5A
1
5
Nominal auxiliary voltage for converter
DC 60 to 250 V 5
Mechanical design
in casing 7XP2040-2 for flush mounting in panel or cubicle
in casing 7XP2040-1 for surface mounting on panel
in casing 7XP2040-2 for flush mounting in panel or cubicle without glass cover
C
D
E
Supplementary functions
without
with overcurrent time protection (in preparation)
0
1
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