Model：VITJ3.6/630-6.3
Category：VI for contactors
| Main Technical Parameter | ||
| Rated voltage | 3.6KV | |
| Rated current | 630A | |
| Rated frequency | 50Hz | |
| Rated short-time Power frequency withstand voltage | 21kV | |
| Rated lightning impulse withstand voltage | 40kV | |
| Rated making current | 6300A | |
| Rated switching current | 5000A | |
| Limit switching current | 6000A | |
| Withstand overload current | 6300A | |
| Electrical endurance AC-3 | 250000 times | |
| Electrical endurance AC-4 | 10000 times | |
| Mechanical endurance | 300000 times | |
| Closing force due to bellow and atmosphere | 70±30N | |
| Force required to hold contacts open at full storke | 100±40N | |
| Circuit resistance at lowest rated contact force | ≤60μΩ | |
| Storage life | 20 years | |
| Contacts limit erosion | 3mm | |
| Weight of movable parts | ≤0.4kg | |
| MECHANICAL DATA REQUIRED FOR THE MATCHED VACUUM SWITCHGEAR | ||
| Clearance between open contacts | 3±1 mm | |
| Contact connection stroke | 3±0.5mm | |
| Average opening speed | 0.4-0.5m/s | |
| Average closing speed | 0.15-0.25m/s | |
| Rated added extemal contact final force | 110±10N | |
| Contact bouncing duration at closing operation | ≤2 ms | |
| Closing and opening non-simultaneity of three-phase contacts | ≤2 ms | |
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