Vacuum Interrupter TD 12kv 630A 25KA (JUC611A) for VCB use from JUCRO Electric
- Price
- US $71
- Model
- JUC611A
- MOQ
- 1 piece
Review
Description
Vacuum Interrupter TD 12kv 630A 25KA (JUC611A) for VCB
Main Technical Parameters
Main technical parameters
Items |
Value |
Rated voltage | 12KV |
Rated current |
630A |
Rated frequency |
50Hz |
Rated power frequency withstand voltage(1 min) | 42kV |
Rated lightning impulse withstand voltage | 75kV |
Rated short circuit breaking current | 25KA |
Rated short circuit making current(peak value) | 50KA |
Breaking operations under rated short circuit breaking current | 30 times |
Rated short time withstand current | 25kA |
Rated withstand current(peak value) | 50kA |
Rated duration of short circuit | 4s |
Mechanical life | 20000 times |
Closing force due to bellows and atmosphere | 120±50N |
Force required to hold contacts opening at full stroke | 190±50N |
Circuit resistance at minimum contacts force | ≤20μΩ |
Storage life | 20 years |
Limiting abrasion of contacts | 3mm |
Mechanical requirements of vacuum circuit breaker
Items |
Value |
Clearance between opening contacts | 11±1mm |
Average opening speed(Contacts closing position~75% contacts opening distance) | 1.1±0.2 m/s |
Average closing speed(30% contacts opening distance~contacts closing position) | 0.6±0.2 m/s |
Rated contacts pressure |
2000±200N |
Contacts bouncing duration at closing operation | ≤2ms |
Contacts re-bouncing clearance at opening operation |
≤2mm |
Synchronism of three phases | ≤1ms |
Strong package, Safety first.
As long as possible to keep the products safe until it arriving customer's warehouse.
Clearly marking label outside of package, customers will be easy to identify their goods.
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