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Basic Info.
| Model NO. | TD-1.14/400-8(VAC300) |
| Poles Number | 3 |
| Certification | ISO9001-2000, CE, CCC |
| Power Frequency Withstand Voltage | 10kV |
| Lightning Impulse Withstand Voltage | 16kV |
| Mechanical Life | 10,000 times |
| Rated Clearance Between Open Contacts | 3.5~4.5mm |
| Rated Contact Stroke | 1~2mm |
| Trademark | VACEM |
| Origin | Wenzhou, China |
Vacuum interrupter for vacuum circuit breaker
TD-1.14/400-8(VAC300)
1.General description
VACEM main products include vacuum interrupter, embedded pole etc. electrical products. Vacuum interrupter is ceramics type, and the range of voltage is from 1.14kV to 40.5kV, current from 63A to 4000A, rated short circuit breaking current from 2kA to 40kA. VACEM products are complied with relevant national standards and international standards (GB standards and IEC standards). After three large scale technical transformation, introducing advanced production processing equipment from Germany and the United States, VACEM has the first-class technology equipment and perfect testing means, and products with the characteristic of standardization, seriation, miniaturization, specialization. For the meantime, VACEM has an experienced R&D team, and a complete , mature R&D program, a special department to organize the development of new products. In order to accurately grasp the development trend of industry technology , VACEM establishes a long-term good relation of cooperation with other well-known domestic and foreign institutions, and carry out technical exchanges with the international well-known enterprises to jointly develop the key products leading the market trend.
VI is mainly applied to VZK1-1.14kV/400A series indoor LV vacuum circuit breaker.
Meets or exceeds the requirement of IEC62271-100 and E2 level in GB1984-2003.
2.Main technical parameter
Specification of VI
| Parameter item | Unit | Data |
| Rated voltage | kV | 1.14 |
| Rated current | A | 400 |
| Rated frequency | Hz | 50/60 |
| Rated short-time power frequency withstand voltage(1 min) | kV | 10 |
| Rated lightning impulse withstand voltage | kV | 16 |
| Rated short-circuit making current | kA | 8 |
| Rated peak withstand current | kA | 20 |
| Rated short-circuit making current | kA | 20 |
| Rated short-time withstand current | kA | 8 |
| Rated short-circuit duration | s | 1 |
| Breaking operations of rated short circuit breaking current | times | 30 |
| Electrical life | times | 10000 |
| Mechanical life | times | 10000 |
| Contact closing force due to bellows and atmosphere | N | 60±20 |
| Force required to hold contact open at full stroke | N | 90±30 |
| Circuit resistance at lowest rated contact force | μΩ | ≤35 |
| Contact limit erosion | mm | 3 |
| Internal gas pressure | Pa | ≤1.33×10-3 |
| Weight of moving parts | kg | 0.3 |
| Storage life | year | 20 |
Specification required for matched switchgear
| Parameter item | Unit | Data |
| Rated clearance between open contacts | mm | 4±0.5 |
| Average opening speed | m/s | 1.1±0.2 |
| Average closing speed | m/s | 0.6±0.2 |
| Rated contact pressure | N | 600±100 |
| Contact bouncing duration at closing operation | ms | ≤2 |
| Closing and opening non-simultaneity of contacts | ms | ≤2 |
| Maximum rebound during opening | mm | ≤2 |
| Rated contact stroke | mm | 1.5±0.5 |
3.Product show
4.International fair
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