Vacuum interrupter JUCA 12KV 1250A 25KA JUCA613 for VCB vacuum circuit breaker use from JUCRO Electric

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Vacuum interrupter JUCA 12KV 1250A 25KA (JUCA613) for VCB vacuum circuit breaker use from JUCRO Electric

Categories	Vacuum Interrupter
Brand	JUCRO
Model	JUCA613
Unit Price	US $ 92 / piece
FOB port	Shanghai/Ningbo
Terms of Payment	L/C, Western Union, MoneyGram, T/T
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Update Time	2021-10-22

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Detail Information

Vacuum interrupter JUCA 12KV 1250A 25KA JUCA613 for VCB Vacuum Circuit Breaker use from JUCRO Electric.

Vacuum Interrupters accept customized order according to technical drawing or samples.

The vacuum interrupter use the wave ceramic as insulating shell, the contact material is CuCr alloy, the longitudinal magnetic field cup structure, with high breaking capacity, high insulation level, strong arc extinguishing ability, long life, small size and easy maintenance, No explosion risk, no pollution, low noise and so on.

Main Technical Parameters

Items	Value
Rated voltage	12kV
Rated current	1250A
Rated frequency	50/60Hz
Rated short circuit breaking current	25KA
Breaking operations under rated short circuit breaking current	30 times
Rated short circuit making current(peak value)	63KA
Rated withstand current(peak value)	63kA
Rated short time withstand current	25kA
Rated breaking current of single capacitor bank	#630A
Rated breaking current of back to back capacitor bank	#400A
Rated power frequency withstand voltage (1 min)	49kV
Rated lightning impulse withstand voltage	85kV
Circuit resistance at lowest rated contacts force	≤25μΩ
Mechanical life	20000 times
Closing force due to bellows and atmosphere	100±30N
Force required to hold contacts opening at full stroke	200±30N
Rated duration of short circuit	4s
Limiting abrasion of contacts	3mm
Storage life	20 years
Moving mass of interrupter	0.84kg
Rated operating sequence	O-0.3s-CO-180s-CO

Mechanical requiements of vacuum circuit breaker

Items	Value
Clearance between opening contacts	9±1mm
Contact connection stroke	4±1mm
Average opening speed	1.1±0.2 m/s
Average closing speed	0.6±0.2 m/s
Rated contacts pressure	2400±200N
Contacts bouncing duration at closing operation	≤3ms
Contacts re-bouncing clearance at opening operation	≤2mm
Synchronism of three phases	≤2ms

Packing & Delivery

Strong 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.

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