Siemens NXPLUS C - Vacuum Contactor

Description
78/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9
Three-position disconnector up to 15 kV, 31.5 kA, 1250 A (option)
Three-position switch-disconnector (application in vacuum contactor panel, ring-main panel,
metering panel)
Three-position switch-disconnector (application in switch-disconnector panel)
10.12 Vacuum contactor
Function Class Standard Property
DISCONNECTING M1 IEC 62271-102 10000 times mechanically
READY-TO-EARTH M0
E0
IEC 62271-102
IEC 62271-102
10000 times mechanically
No making capacity
EARTHING
E2
1
1
The EARTHING function with class E2 is reached by closing the circuit-breaker in combination with
the three-position disconnector (class E0)
IEC 62271-200
IEC 62271-102
50 times rated short-circuit making current I
ma
Function Class Standard Property
DISCONNECTING M1 IEC 62271-102 2000 times mechanically
LOAD BREAKING M1 IEC 60265-1 1000 times mechanically
E3 IEC 60265-1
100 times rated mainly active load breaking current I
1
1
5 times rated short-circuit making current I
ma
1
In addition to I
1
the class also covers the test currents I
2ar
, I
4a
, I
4b
, I
6a
and I
6b
EARTHING M0
E2
IEC 62271-102
IEC 62271-102
1000 times mechanically
5 times rated short-circuit making current I
ma
Function Class Standard Property
DISCONNECTING M0 IEC 62271-102 1000 times mechanically
LOAD BREAKING M1 IEC 60265-1 1000 times mechanically
E3 IEC 60265-1 1000 times mechanically
100 times rated mainly active load breaking current I
1
1
5 times rated short-circuit making current I
ma
1
In addition to I
1
the class also covers the test currents I
2ar
, I
4a
, I
4b
, I
6a
and I
6b
EARTHING M0
E2
IEC 62271-102
IEC 62271-102
1000 times mechanically
5 times rated short-circuit making current I
ma
Rated voltage 7.2/12/17.5/24 kV
Rated current 450 A
Rated short-time withstand current 8 kA (1 s)
Rated peak withstand current 20 kA
Number of operating cycles at rated normal
current:
100 000 or 500 000 operating cycles
Auxiliary switch 3 NO + 4 NC or 5 NO + 6 NC freely available
Counter Option
Short-circuit breaking current 4 kA