Hubei Jucro Electric Co.,Ltd
Vacuum interrupter JUCA 12KV 1250A 25KA JUCA613 for VCB vacuum circuit breaker use from JUCRO Electric
Vacuum interrupter JUCA 12KV 1250A 25KA JUCA613 for VCB vacuum circuit breaker use from JUCRO Electric
| Categories | Vacuum Interrupter |
|---|---|
| Album | View larger image |
| Brand | JUCRO |
| Model | JUCA 12KV 1250A 25KA |
| Unit Price | US $ 69-92 / piece |
| FOB port | Shanghai/Ningbo |
| Terms of Payment | L/C, Western Union, MoneyGram, T/T |
| Download DOC |  |
| Update Time | 2018-12-10 |
Vacuum interrupter JUCA 12KV 1250A 25KA JUCA613 for VCB Vacuum Circuit Breaker use from JUCRO Electric.
Main Technical Parameters
Items | Value |
Rated voltage | 12kV |
Rated current | 1250A |
Rated frequency | 50/60Hz |
Rated short circuit breaking current | 25KA |
Breaking operations under rated short circuit breaking current | 30 times |
Rated short circuit making current(peak value) | 63KA |
Rated withstand current(peak value) | 63kA |
Rated short time withstand current | 25kA |
Rated breaking current of single capacitor bank | #630A |
Rated breaking current of back to back capacitor bank | #400A |
Rated power frequency withstand voltage (1 min) | 49kV |
Rated lightning impulse withstand voltage | 85kV |
Circuit resistance at lowest rated contacts force | ≤25μΩ |
Mechanical life | 20000 times |
Closing force due to bellows and atmosphere | 100±30N |
Force required to hold contacts opening at full stroke | 200±30N |
Rated duration of short circuit | 4s |
Limiting abrasion of contacts | 3mm |
Storage life | 20 years |
Moving mass of interrupter | 0.84kg |
Rated operating sequence | O-0.3s-CO-180s-CO |
Mechanical requiements of vacuum circuit breaker
Items | Value |
Clearance between opening contacts | 9±1mm |
Contact connection stroke | 4±1mm |
Average opening speed | 1.1±0.2 m/s |
Average closing speed | 0.6±0.2 m/s |
Rated contacts pressure | 2400±200N |
Contacts bouncing duration at closing operation | ≤3ms |
Contacts re-bouncing clearance at opening operation | ≤2mm |
Synchronism of three phases | ≤2ms |
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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