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    • Jtd 12kv 1250a 20ka Vacuum Interrupter For Solid Embedded Poles - China

    price: 90.00 Dollar US$

    Jtd 12kv 1250a 20ka Vacuum Interrupter For Solid Embedded Poles

    Products Photos Catalog Jtd 12kv 1250a 20ka Photos Catalog

    Model No: JTD 12kv 1250A 20KA vacuum interrupter for Solid embedded poles

    Rated voltage: 12 KV

    Rated current: 1250A

    Rated power frequency withstand voltage (1 min): 42 KV

    Rated lightning impulse withstand voltage: 75 KV

    Rated short circuit breaking current: 20KA

    Rated short circuit making current(peak value): 50KA

    Breaking operations under rated short circuit breaking current: 30 times

    Rated short time withstand current: 20KA

    Rated withstand current(peak value): 50KA

    Rated duration of short circuit: 4 s

    Mechanical life: 20, 000 times

    Closing force due to bellows and atmosphere: 70±40 N

    Force required to hold contacts opening at full stroke: 120±50 N

    Circuit resistance at lowest rated contacts force: ≤35μΩ

    Storage life: 20 years

    Limiting abrasion of contacts: 3 mm

    Weight of moveable parts: ≤0.7kg Mechanical requiements of vacuum circuit breaker

    Clearance between opening contacts: 7±1 mm

    Average opening speed: 1.0±0.25 m/s

    Average closing speed: 0.65±0.15 m/s

    Rated contacts pressure: 1600±100 N

    Contacts bouncing duration at closing operation: ≤2 ms

    Contacts re-bouncing clearance at opening operation: ≤2 mm

    Synchronism of three phases: ≤1 ms


    Company Contact:


    • Phone: 18827250932

    • Address: 4#Rd Xiannv,Zhijiang City,Yicahng City,, Hubei Province,China, Yichang City, Hubei , China

    • Email: Email


    Published date: August 30, 2018

    • Business Description: Hubei Jucro Electric CO., LTD. is a private enterprise that produces and exports high voltage electrical equipment.

      The main products are: vacuum contactors, vacuum circuit breakers, vacuum interrupters and related accessories.

      The product rated voltage range covers 660KV/1.14KV/3.6KV/7.2KV/ 24KV/40.5KV.

      The rated current of the product ranges from 125A to 4000A.

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