TD 12kv 1250A 31.5KA (JUC618) 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: 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
Circuitresistance 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±0.2m/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: ≤2ms
Contacts re-bouncing clearance at opening operation: ≤2mm
Synchronism of three phases: ≤1ms
Send product request
Other supplier products
|
|
TD 12kv 1250A 31.5KA (JUC618) vacuum interrupter for VCB | Main technical parameters Rated voltage: 12 KV Rated current: 1250A Rated power frequency withstand voltage: 42 KV Rated lightning impulse withstan... |
 |
AC vacuum contactor HVJ5 1.14kv 125A | General HVJ5 1.14kv 125AAC vacuum contactor is designed for long-distance making and breaking of circuit, frequent starting and controlling of AC... |
 |
AC vacuum contactor HVJ5-1.14kv 250A | General HVJ5 1.14 kv 250A AC vacuum contactor is designed for long-distance making and breaking of circuit, frequent starting and controlling of ... |
 |
HCJ5 1.14kv 125A vacuum interrupter for vacuum contactor | HCJ5 1.14kv 125A vacuum interrupter for vacuum contactor The interrupter adoption porcelain and ceramics makes to insulate the outer shell. Contact... |
 |
JN15 12 kv series indoor high voltage earthing switch | Introduction JN15 12 kv series indoor high voltage earthing switch is a compositional type, and the technical parameters is corresponding to the ... |
Same products
 |
MECHANIC A130 Professional 2-in-1 Dust Removal Ball for Electronics Repair | Seller: Phonefix | MECHANIC A130 Silicone Air Blower Ball for mobile phone PCB and hardware cleaning. This professio... |
 |
Metal flexible conduit, JSB series flat plastic cable hose | Seller: Zhejiang Yingdete Electric Co., Ltd | Armored flexible conduitsare engineered with a metal layer, typically surrounded by PVC or other ... |
 |
Metal hose connector, DPJ series | Seller: Zhejiang Yingdete Electric Co., Ltd | Conduit connectorsand fittings are essential components used in electrical conduit systems to joi... |
 |
Waterproof cable gland Nylon new material | Seller: Zhejiang Yingdete Electric Co., Ltd | Water-tight protection is crucial for electrical, marine, and automation applications. Our waterp... |
 |
Brass cable glands | Seller: Zhejiang Yingdete Electric Co., Ltd | Brass cable glandsare preferred for their high corrosion resistance and conductivity, making them... |
