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Description
Type
3AE50123-2
13
No.
S 3AE50123-2
12
Ur
17.5 kV 50/60 Hz
11
10
Isc
31.5 kA
Ud/Up 42/95 kV
8/9
Rated operating sequence: O - 0.3 s - CO - 3 min - CO
Class as per IEC 62271-100 E2, C2, M2
Fig. 38
Example - rating plate
Rated voltage* U
r
Rated normal current I
r
Rated lightning impulse withstand voltage (peak value) U
Rated power frequency withstand voltage (effective value) U
Rated short-circuit breaking current I
Distance between pole centres
Distance between lower and the upper terminal
Rated operating sequence
30
Rating plate
Year of manufacture 2017
Ir
1250 A
tk
3 s
m
80 kg
Made in Germany
Technical data
sc
A
O - 3 min - CO - 3 min - CO
B
O - 0.3 s - CO - 3 min - CO; standard rated operating sequence
C
O - 0.3 s - CO - 15 s - CO
*
In the event of a rated frequency f r of 50/60 Hz
**
On request
***
From 2000 A upwards only with 310 mm space between the lower and the upper terminal
and a distance between pole centres of 210/275 mm
Fig. 39
Technical data (excerpt from the catalogue)
Dimensions and weights
The dimensions of the vacuum circuit-breaker can be taken from the relevant dimen-
sion drawing. If needed, they can be obtained from your Siemens representative.
The weight is indicated on the vacuum circuit-breaker rating plate (see Fig. 38) or
refer to the associated dimensional drawing.
1
2
14
Q
3
600806
Kontr
4
1
5
6
2
7
3
4
8
5
9
6
10
7
11
11
12
13
14
kV
7.2
A
kV
60
p
kV
20 (32**)
d
kA
mm
mm
Manufacturer
Year of manufacture
Rated normal current I r
Rated duration of short circuit t k
Weight m
Rated operating sequence
Classification as per standard
Rated power frequency withstand voltage U d
Rated lightning impulse withstand
voltage U p
Rated short-circuit breaking current I sc
Rated voltage U r
Rated frequency f r
Factory number
Type designation
Quality control seal
12
17.5
800 - 2500***
75 (95**)
95
28 (42**)
38
16 - 31.5
150, 160, 210, 275
205, 275, 310
A, B, C
9229 0025 176 0-
24
800
125
50 (65**)
16 - 25
210, 275
310
A, B, C
2018-01-18
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