Hubei Jucro Electric Co.,Ltd
Vacuum Interrupter TF 12kv 630A 20KA (JUC702) for load break switch use from JUCRO Electric
Vacuum Interrupter TF 12kv 630A 20KA (JUC702) for load break switch use from JUCRO Electric
| Categories | Vacuum Interrupter |
|---|---|
| Album | View larger image |
| Brand | JUCRO |
| Model | JUC702 |
| Unit Price | US $ 44 / piece |
| FOB port | Shanghai/Ningbo |
| Terms of Payment | L/C, Western Union, MoneyGram, T/T |
| Download DOC |  |
| Update Time | 2019-10-20 |
Vacuum Interrupter TF 12kv 630A 20KA (JUC702) for load break switch use from JUCRO Electric
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 time withstand current | 20KA |
Rated withstand current(peak value) | 50KA |
Rated short circuit making current(peak value) | 50KA |
Rated closed-loop breaking current | 630A |
Rated active load breaking current | 630A |
Rated cable charging breaking current | 10A |
Rated duration of short circuit | 4s |
Mechanical life | 10000 times |
Closing force due to bellows and atmosphere | 70±20N |
Force required to hold contacts opening at full stroke | 120±30N |
Circuit resistance at minimum contacts force | ≤40μΩ |
Storage life | 20 years |
Limiting abrasion of contacts | 3mm |
Mechanical requirements of vacuum circuit breaker
Items |
Value |
Clearance between opening contacts | 6±1mm |
Average opening speed(Contacts closing position~75% contacts opening distance) | 1.0±0.2 m/s |
Average closing speed(30% contacts opening distance~contacts closing position) | 0.6±0.2 m/s |
Rated contacts pressure |
900±100N |
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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