Siemens 3AH3, Operating Instructions Manual

Page: 35 / 64

Description
9229 9860 176 0E 35
2013-08-22
Rating plate
Technical data
Fig. 47 Technical data
Dimensions and weights
The dimensions of the vacuum circuit-breaker can be taken from the relevant dimen-
sion drawing. If required, these are available from your sales representative.
The weight is given on the rating plate of the vacuum circuit-breaker (see Fig. 46) or
can be taken from the relevant dimension drawing.
Fig. 46 Example – vacuum circuit-breaker rating plate 3AH3
a Manufacturer
b Type designation
c Works serial number
d Rated voltage U
r
e Rated frequency f
r
f Rated short-circuit breaking current I
sc
g Rated power frequency withstand
voltage U
d
h Rated lightning impulse withstand
voltage U
p
i Quality control seal
k Year of manufacture
m Rated operating current I
r
n Rated short-circuit duration t
k
o Mass m
p Rated operating sequence
r Classification to standard
Rated voltage* U
r
kV 7.2 12 15 17.5 24 36 (40.5)**
Rated operating current I
r
A 1250, 2500, 3150, 4000
2500,
3150,
4000
1250, 2000,
2500, 3150,
4000
2500, 3150,
4000
Rated lightning impulse withstand
voltage (peak value)
U
p
kV 60 75 95 95 110, 125
170
(185)**/(195)**
Rated power frequency withstand
voltage (effective value)
U
d
kV
20
(42)**
28
(42)**
36
(42)**
38
(42)**
50
70
(85)**/(95)**
Rated short-circuit breaking cur-
rent
I
sc
kA 50, 63 40, 50 31.5 40
Distance between pole centres mm 210, 275 275, 300 350 350
Rated operating sequence A, B, C A, B, C A**, B, C** A, B, C
A O - 3 min - CO - 3 min - CO; standard rated operating sequence
B O - 0.3 s - CO - 3 min - CO; up to I
sc = 31.5 kA possible
C O - 0.3 s - CO - 15 s - CO; up to I
sc = 31.5 kA possible
* In the event of a rated frequency f
r of 50/60 Hz
** On request
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