Audited Supplier
TJC-7.2/630(VAC203C)
Get ready to experience the best in electrical products with VACEM! Our main products include the highly sought-after vacuum interrupter and embedded pole, among others. Our vacuum interrupter is made of top-quality ceramics and boasts a voltage range of 1.14kV to 40.5kV, current from 63A to 4000A, and rated short circuit breaking current from 2kA to 40kA. VI is mainly applied to VJCZ5 and-7.2 series AC MV vacuum contactor. Meets or exceeds the requirement of IEC62271-100 and E2 level in GB1984-2003.
At VACEM, we take pride in complying with relevant national and international standards (GB and IEC standards). We've undergone three large-scale technical transformations and have introduced advanced production processing equipment from Germany and the United States. This has enabled us to have first-class technology equipment and perfect testing means, resulting in products with the characteristic of standardization, seriation, miniaturization, and specialization.
Our experienced R&D team and complete, mature R&D program ensure that we stay ahead of the curve in terms of industry technology. We even have a special department dedicated to organizing the development of new products. To accurately grasp the development trend of industry technology, we establish long-term good relations of cooperation with other well-known companies.
Specification of VI
| Parameter item | Unit | Data |
| Rated voltage | kV | 7.2 |
| Rated current | A | 630 |
| Rated frequency | Hz | 50/60 |
| Rated short-time power frequency withstand voltage(1 min) | kV | 32 |
| Rated lightning impulse withstand voltage | kV | 60 |
| Rated connecting current | kA | 6.3 |
| Rated breaking current | kA | 5.04 |
| Rated maximum sectional current | kA | 6.3 |
| Rated minimum sectional current | A | 120 |
| Rated short-time withstand current | kA | 6.3 |
| Rated short-circuit duration | s | 4 |
| Mechanical life | ten-thousand times | 30 |
| Rated breaking time AC3 | ten-thousand times | 15 |
| Rated breaking time AC4 | ten-thousand times | 6 |
| Contact closing force due to bellows and atomsphere | N | 60±20 |
| Force required to hold contact open at full stroke | N | 90±30 |
| Circuit resistance at rated contact force | μΩ | ≤50 |
| Contact limit erosion | mm | 3 |
| Internal gas pressure | Pa | ≤1.33×10-3 |
| Weight of moving parts | kg | 0.4 |
| Storage life | year | 20 |
Specifications required for matched switchgear
| Parameter item | Unit | Data |
| Rated clearance between open contacts | mm | 5±1 |
| Average opening speed | m/s | 0.6±0.1 |
| Average closing speed | m/s | 0.3±0.1 |
| Rated contact pressure | N | 110±20 |
| Contact bouncing duration at closing operation | ms | ≤3 |
| Closing and opening non-simultaneity of contacts | ms | ≤1 |
| Rated contact stroke | mm | 2±0. |
