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
Main Technical Data
| Main Technical Data | |
| Rated Voltage | 12kV |
| Rated Current | 630/1250A |
| Rated Frequency | 50Hz |
| Rated Short-time power frequency withstand voltage(1min) | 42kV |
| Rated Lighting impulse withstand voltage | 75kv |
| Rated short-circuit breaking current | 31.5KA |
| Rated short-circuit making current(peak) | 80kA |
| Breaking operations of rated short circuit breaking current | 30 timies |
| Rated sigle capacitor bank breaking current | 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 force | ≤25μΩ |
| Shelf life | 20 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 speed | 1.0±0.2m/s |
| Average closing speed | 0.65±0.15m/s |
| Added contact force | 3150±200N |
| Contact bouncing duration at closing operation | ≤2ms |
| Contact bouncing bank amplitude of opening operation | ≤2mm |
| Three-pole simultaneity | ≤1ms |
Dimensional Drawing
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