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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
31.5KA
Rated short-circuit making current(peak)
80kA
Breaking operations of rated short circuit breaking current
30Â timies
Rated sigle capacitor bank breaking currentÂ
630A
Rated short-time withstand current
31.5kA
Rated peak withstand current
80kA
Rated duration of short-circuit
4s
Mechanica life
20000times
Contact closing force due to bellows and atmosphere
120±50N
Counterforce at rated contact stroke
190±60N
Circuit resistance at rated contact forceÂ
≤25μΩ
Shelf lifeÂ
20Â years
Contact erosion limit
3mm
Weight of moving parts
≤1.5kg
Mechanical Data Required for matched vacuum switchgear
Rated contact stroke
10±1mm
Average opening speedÂ
1.0±0.2m/s
Average closing speedÂ
0.65±0.15m/s
Added contact forceÂ
3150±200N
Contact bouncing duration at closing operation
≤2ms
Contact bouncing bank amplitude of opening operation
≤2mm
Three-pole simultaneity
≤1ms
Dimensional Drawing
Vacuum Circuit Breaker Zn28 Vs1 Td630/12-31.5 Interrupter
Model NO.: 302C
Poles Number: 3
Type: Vacuum
Function: Vacuum
Certification: ISO9001-2000, CQC
Warranty: 12 Month
Rated Voltatge: 12kv
Rated Current: 630A
Rated Short-Circuit Breaking Current: 31.5ka
Mechanical Life: 20000 Times
Shelf Life: 20 Years
Trademark: ZGVE
Transport Package: Standard Export Packing.
Specification: Vacuum
Origin: Wenzhou
HS Code: 8538900000
ZN28 VS1 Vacuum Interrupter For Indoor Circuit Breaker 302C