SecoVac VB-40.5 Vacuum Circuit Breaker
VB-40.5 vacuum circuit breaker is a three-phase AC, rated voltage 40.5 kv indoor device for industrial and mining enterprises, power plants and substations for electrical equipment control and protection. Products comply with GB, DL, IEC standards. Especially suitable for frequent working conditions. Circuit breakers can be installed in fixed or removable switchgear, medium voltage distribution system control and protection is a good choice.
|
Description |
Technical Data |
|
Rated Voltage (kV) |
40.5 |
|
Rated Frequency (HZ) |
50/60 |
|
RatedPower Frequency Withstand Voltage(kV) |
95 |
|
RatedLightning Impulse Withstand Voltage(kV) |
185 |
|
Rated Current (A) |
630，1250，1600，2000，2500，3150* |
|
Rated Short-circuit Breaking Current (kA) |
25,31.5 |
|
Rated Peak Withstand Current(kA) |
63,80 |
|
Rated Short-time Withstand Current 4s(kA) |
25,31.5 |
|
Operating Mechanism |
Spring |
|
Closing Time (ms) |
30~70 |
|
Opening Time(ms) |
20~50 |
|
Mechanical Endurance (times） |
10000 |
|
Electric Endurance(times） |
30 |
