Vacuum interrupter for contactor 3.6KV 250/400/630A
Wuhan Feite Electric Co., Ltd. [China] 
Minimum Order: 0
Quality/Safety Certification: 0.00
1.Once Seal-Exhaust Technique
2.Free painting technology
3.316L Stainless steel, easy-welding and environmental friendly
Main Technical Data:
low and high voltage ceramic vacuum interrupter for contactor | ||
| Main Technical Data | ||
| Rated voltage | kv | 3.6 |
| Rated current | A | 250/400/630 |
| Rated frequency | Hz | 50 |
| Rated short-time power frequency withstand voltage(1min) | kv | 21 |
| Rated lighting impulse withstand voltage | kv | 40 |
| Rated making current | kA | 2.5/4.0/6.3 |
| Rated breaking current,max | kA | 2.0/3.2/5.0 |
| Rated breaking current,min | kA | 50/80/125 |
| Rated making current,limit | kA | 2.5/4.0/6.3 |
| Rated short-time withstand current | kA | 2.5/4.0/6.3 |
| Rated duration of short-circuit | s | 4 |
| Mechanical life | times | 30×10000 |
| Electricity life AC-3 | times | 25×10000 |
| Electricity life AC-4 | times | 10×10000 |
| Rated contact stroke | mm | 4±1 |
| Contact closing force due to bellows and atmosphere | N | 70±30 |
| Counterforce at rated contact stroke | N | 110±40 |
| Circuit resistance at rated contact atmosphere force | μΩ | ≤60 |
| Shelf life | years | 20 |
| Contact erosion limit | mm | 3 |
| Weight of moving parts | kg | ≤0.6 |
| Mechanical Data Required For Matched Vacuum Switchgear | ||
| Average opening speed | m/s | 0.6±0.2 |
| Average closing speed | m/s | 0.3±0.1 |
| Added contact force | N | 110±10 |
| Contact bouncing duration at closing operation | ms | ≤2 |
| Contact bouncing bank amplitude of opening operation | ms | ≤2 |
| Three-pole simultaneity | ms | ≤1 |
| Note:Rated characteristics can be given on requirment | ||
Dimension Drawing:
