Detailed Product Description

Vacuum Circuit Breaker

1.Rated Voltag:    12kV/20kV/24kV
2.Rated Frequency:   50Hz    
3Rated Insulation level Power Frequency Withstand Voltage in 1 Min:  42kV
Lightning impulse withstand voltage:   75kV   
4.Rated Current:     630,1250,1600,2000,2500,3150,4000,5000A 
5.Rated Short-Circuit Interrupting Current:   20,25,31.5,40,50kA 
6.Rated Short Circuit Closing Current (peak):  65,75,95,120,150kA 
7.Rated Peak Withstand Current: 20,25,31.5,40,50kA
8.Rated Short-time Withstand Current(4S):  60, 75,95,120,150 
9.Number or  Openings at Rated Short-Circuit Current:  50,30,20Times
10.Rated Operating Sequence:   O-0.3s-C/O-180s-C/O 
11.Closing Time:   50+/-15ms   
12.Opening Time:  50+/-15ms    
13.Energy Storage Time:    <=15s
14.echanical Service Life:     50000Times,20000Times  
15.Rated power of energy storage motor:   200,300W  
16.Rated voltage of energy storage motor:  110   220V 
17.Rated voltage of closing/opening electromagnet :110,220V
18.Rated current of closing/opening electromagnet:    DC1.91    DC0.89A
19.Rated current of over-current trip: 5A   
20.Rated current of auxiliary switch :   AC10 ,  DC5A  

All of our vacuum circuit breakers have passed related international standards and test.