Vacuum Interrupter TD 12kv 1250A 31.5KA (JUC618) for VCB
Categories Vacuum Interrupter Album View larger image Brand JUCRO Model JUC618 Unit Price US $ 130 / piece FOB port Shanghai/Ningbo Terms of Payment L/C, Western Union, MoneyGram, T/T Download DOC Update Time 2021-02-27 Detail InformationTD 12kv 1250A 31.5KA (JUC618) vacuum interrupter for VCB
Vacuum Interrupters accept customized order according to technical drawing or samples.Main Technical Parameters
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: 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: 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±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
Items
Value
Rated voltage
12KV
Rated current
1250A
Rated frequency
50Hz
Rated power frequency withstand voltage
42kV
Rated lightning impulse withstand voltage
75kV
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
4s
Mechanical life
20000 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
3mm
Mechanical requiements of vacuum circuit breaker
Items
Value
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
3150±200N
Contacts bouncing duration at closing operation
≤2ms
Contacts re-bouncing clearance at opening operation
≤2mm
Synchronism of three phases
≤1ms
Packing & DeliveryStrong package, Safety first.
Inside with foam to support the product, put it in carton or wooden box, fixed it on pallet.
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.Our Company20000 M2 of JUCRO Electric company land1500 M2 of office building5000 M2 of workshop buildingInside of JUCRO Electric office buildingInside of JUCRO Electric office buildingJUCRO Electric office work areaWorkshopVacuum Interrupter Workshop
Accept customized order.
Design the Vacuum Interrupter for you.VCB Production Line
VCB Vacuum Circuit Breaker production Line.VCB Production Line
VCB Vacuum Circuit Breaker production line, Engineers routine inspection.Quality InspectionCarefully inspection of each product, Quality guaranteedcompletely data records of entire process , all the product data can be traced.Related ProductsPlease send your message to usProfessional production line solution provider!
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