Zn28 Vs1 Vacuum Interrupter for Indoor Circuit Breaker (208E)
Ring And Fork Type Insulated Terminals Ring And Fork Type Insulated Terminals,High quality insulated terminal,copper tube terminal Taixing Longyi Terminals Co.,Ltd. , https://www.longyiterminals.com
Main Technical Data
Main Technical Data
Rated VoltageÂ
12kV
Rated CurrentÂ
630/1250A
Rated Frequency
50Hz
Rated Short-time power frequency withstand voltage(1min)
42kV
Rated Lighting impulse withstand voltage
75kv
Rated short-circuit breaking currentÂ
25KA
Rated short-circuit making current(peak)
63kA
Breaking operations of rated short circuit breaking current
30Â timies
Rated sigle capacitor bank breaking currentÂ
400A
Rated short-time withstand current
25kA
Rated peak withstand current
63kA
Rated duration of short-circuit
4s
Mechanica life
20000times
Contact closing force due to bellows and atmosphere
80±40N
Counterforce at rated contact stroke
120±50N
Circuit resistance at rated contact forceÂ
≤25μΩ
Shelf lifeÂ
20Â years
Contact erosion limit
3mm
Weight of moving parts
≤1.3kg
Mechanical Data Required for matched vacuum switchgear
Rated contact stroke
10±1mm
Average opening speedÂ
1.0±0.25m/s
Average closing speedÂ
0.65±0.15m/s
Added contact forceÂ
2000±100N
Contact bouncing duration at closing operation
≤2ms
Contact bouncing bank amplitude of opening operation
≤2mm
Three-pole simultaneity
≤1ms
Dimensional Drawing
