Circuit-Breaker Panel - Siemens NXPLUS C Installation And Operating Instructions Manual

Rated voltage U
r
Rated normal current I
r
Rated short-time withstand current I
Rated peak current I
p
Rated short-circuit making current I
Rated short-circuit breaking current I
Electrical service life of vacuum circuit-breakers
at rated normal current
at rated short-circuit breaking current
Endurance classes according to IEC 62271-100
Endurance classes according to IEC 62271-102
1
Also as 66 kA/26.3 kA at 50 Hz
2
The EARTHING function with endurance class E2 is reached by closing the circuit-breaker in combination with the three-position discon-
nector (endurance class E0).
806-9004.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 02
10.2

Circuit-breaker panel

Panel with t
k
Panel with t
50 Hz
60 Hz
50 Hz
ma
60 Hz
sc
DISCONNECTING
READY-TO-EARTH
Operating cycles 3AE43
Rated voltage
Rated current
Rated short-time withstand
current
Rated normal current
Short-circuit breaking current
Operating cycles 3AE44
Rated voltage
Rated current
Rated short-time withstand
current
Rated normal current
Short-circuit breaking
current
1
Also as 66 kA/26.3 kA at 50 Hz
kV 7.2
A 630/800/1000/1250
= 1 s kA 20/25/31.5
k
= 3 s kA 20/25/31.5
k
kA 50/63/80
kA 52/65/82
kA 50/63/80
kA 52/65/82
kA 20/25/31.5
10,000 operating cycles
50 breaking operations
M2, E2, C2
M1
2 M0, E0
kV 7.2
A
kA
Operating
cycles
Operating
cycles
kV 27 36
A 630/800/1000/1250
1
kA
25
Operating 10000
cycles
Operating 50
cycles
12 15 17.5 24
20/25
20/25
50/63
52/65
50/62.5 50/62.5
52/65
20/25
12 15
>800/ ≤ 1250
31.5
10000
50
38
Description
27 36 38
1
20/25
1
20/25
1
50/62.5
1
1
20/25
17.5 24
25
39/266