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TD 12kv 1250A 31.5KA (JUC619A) vacuum interrupter for VCB

China

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Product Specification

Brand Name : JUCRO Max. Current : - Max. Voltage : -

Product Description

TD 12kv 1250A 31.5KA (JUC619A)  vacuum interrupter for VCB

Main technical parameters

Rated voltage: 12 KV
Rated current: 1250A
Rated power frequency withstand voltage: 48 KV
Rated lightning impulse withstand voltage: 85 KV
Rated short circuit breaking current: 31.5KA
Rated short circuit making current(peak value): 80KA
Breaking operations under rated short circuit breaking current: 30 times
Rated short time withstand current: 31.5KA
Rated withstand current(peak value): 80KA
Rated duration of short circuit: 4 s
Mechanical life: 10,000 times
Closing force due to bellows and atmosphere: 120±50 N
Force required to hold contacts opening at full stroke: 190±50 N
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±1 mm
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: 3150±200 N
Contacts bouncing duration at closing operation: ≤2 ms
Contacts re-bouncing clearance at opening operation: ≤2 mm
Synchronism of three phases: ≤1 ms
* It Needs additional insultating protection.

Contact Us

Contact Person : Dan

Company:Hubei Jucro Electric CO, LTD

Address:Array, Hubei, China,

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Dan < Hubei Jucro Electric CO, LTD >
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