Siemens 3AH4, Operating Instructions Manual

Page: 33 / 66

Description
9229 9862 176 0D 33
2013-08-28
Rating plate
Technical data
Fig. 43 Technical data
Fig. 42 Example – vacuum circuit-breaker rating plate 3AH4
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 Ordering option operating cycle number
M30/M60
m Year of manufacture
n Rated operating current I
r
on Rated short-circuit duration t
k
p Mass m
r Rated operating sequence
s Classification to standard
Rated voltage* U
r
kV 12 15 17.5 24 36
Rated operating cur-
rent
I
r
A
1250,
2000
1250,
1600,
2000,
2500,
3150
1250,
2000
1250,
1600,
2000,
2500,
3150
1250,
2000
1250,
1600,
2000,
2500,
3150
1250,
2000
2500
1250,
2000
1250,
2000,
2500,
3150,
4000
2500,
3150,
4000
Rated lightning impulse
withstand voltage (peak
value)
U
p
kV 75 95 95 125 150 170
Rated power frequency
withstand voltage
(effective value)
U
d
kV 28 36 38 50 60 70
Rated short-circuit
breaking current
I
sc
kA 31.5 40 31.5 40 31.5 40 25 40 25 31.5 40
Distance between pole
centres
mm 210 210 210
210/
275
275 275 350
Rated operating
sequence
B A B A B A B A B B A
mechanical operating
cycles in thousands
30/60** 120
30/60
**
120
A O - 3 min - CO - 3 min - CO
B O - 0.3 s - CO - 3 min - CO
* In the event of a rated frequency f
r of 50/60 Hz
** with ordering option M30/M60