ABB AMVAC Technical manual - page 7
Manual is about: Medium Voltage Vacuum Circuit Breakers
of
16
AMVAC | SafeGear HD 7
Voltage class
Continuous current
Short circuit current
Interrupt time
Closing time
kV
A
kA
Cycles
ms
5
1200
25
3
45-60
31.5
3
45-60
40
5
45-60
50
5
45-60
2000
25
3
45-60
31.5
3
45-60
40
3
45-60
50
5
45-60
3000
25
3
45-60
31.5
3
45-60
40
3
45-60
50
5
45-60
8.25
1200
40
3
45-60
2000
40
3
45-60
3000
40
3
45-60
15
1200
25
3
45-60
31.5
3
45-60
40
3
45-60
50
3
45-60
2000
25
3
45-60
31.5
3
45-60
40
3
45-60
50
3
45-60
3000
25
3
45-60
31.5
3
45-60
40
3
45-60
50
3
45-60
27
1200
16
3
45-60
25
3
45-60
2000
16
3
45-60
25
3
45-60
AMVAC breaker
Timing characteristics
Total interrupting time consists of opening time plus the time
required for arc interruption. Total interrupt time is 50 ms or less
for three cycle breakers and 83 ms or less for five cycle brea-
kers.