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TD 12kv 1250A 25KA (JUC613) vacuum interrupter for VCB

Product Details
TD 12kv 1250A 25KA (JUC613) vacuum interrupter for VCB
TD 12kv 1250A 25KA (JUC613) vacuum interrupter for VCB
Main technical parameters

Rated voltage: 12 KV

Rated current: 1250A

Rated power frequency withstand voltage: 42 KV

Rated lightning impulse withstand voltage: 75 KV

Rated short circuit breaking current: 25KA

Rated short circuit making current(peak value): 63KA

Breaking operations under rated short circuit breaking current: 30 times

Rated short time withstand current: 25KA

Rated withstand current(peak value): 63KA

Rated duration of short circuit: 4S

Mechanical life: 20,000 times

Closing force due to bellows and atmosphere: 120±50N

Force required to hold contacts opening at full stroke: 190±50N

Circuit resistance at lowest rated contacts force: ≤20μΩ

Storage life: 20 years

Limiting abrasion of contacts: 3 mm



Mechanical requiements of vacuum circuit breaker

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
Contact Information
  • Contact Personlucy lu
  • Telephone15272158671
  • Fax Number+86-717-4209218
  • Websitehttps://www.gmdu.net/corp-918337.html
  • Post Code443200
  • Address4# Road, Xiannv industrial zone, Zhijiang, Hubei 443200, China
  • Online MapHubei Jucro Electric Co.,Ltd Map & Directions
Related ProductsHubei Jucro Electric Co.,Ltd+︎