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    12kV Vacuum Circuit Breaker, 1250A, 2000A

    5 out of 5 based on 1 reviews | Write a review
    $751.09
    12kv vacuum circuit breaker at affordable price for sale online. Rated short circuit breaking current about 20kA, 40kA and 50kA. It is suitable for indoor use. Compact design enables the 12kv circuit breaker to be installed within almost all switchgears.
    SKU: ATO-VCB-12A
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    Delivery date: 6-12 days

    Vacuum circuit breaker with 12kv rated voltage, mechanical life about 20000 times. 12kv vacuum circuit breaker adopts the composite insulation structure, with high insulation grade, no pollution and no explosion danger.

    Features:

    • 12kV vcb with Ideal contact material and shape, ensuring low current carrying value and stable contact resistance.
    • Integrated design of main conductive circuit made of compound isolation material and operating mechanism.
    • Few components and parts, compact and logical structure, assuring more reliable and safer operation.
    • Vacuum circuit breaker adopts the composite insulation structure, with high insulation level,no pollution or explosion danger.
    • Compact design enables the breaker to be installed within almost all switchgears.
    • Superior cost performance, 12kV vacuum circuit breaker is the ideal choice for engineering programs.

    Specification: (Parameters can be customized)

    Model ATO-VCB-12A
    Rated voltage 12 kV
    Maximum operating voltage 12 kV
    Rated current 630 A, 1000 A, 1250 A, 1600 A, 2000 A, 3150 A
    Rated short circuit breaking current 20/25 kA, 31 kA, 40 kA, 50 kA
    Rated short circuit switching current 50/63 kA, 80 kA, 100 kA, 125 kA
    Rated peak withstand current 50/63 kA, 80 kA, 100 kA, 125 kA
    4S Rated short-time withstand current 20 kA, 31 kA, 40 kA, 50 kA
    Rated insulation level power frequency withstand voltage (rated open circuit before and later): 42 kV
    impulse withstand voltage (rated open circuit before and later): 75 kV
    Mechanical life 20000 times
    Rated closing voltage of operating mechanism (DC) 110 V, 220 V
    Rated switching voltage of operating mechanism (DC) 110 V, 220 V
    Contactor torque 11±1
    Exceed range (the compress length of contact spring) 4±0.5
    Max.bouncing duration ≤ 2
    Average opening speed ≤ 0.05
    Average closing speed ≤ 0.08
    Opening time ≤ 50
    Closing time ≤ 100
    Accumulative allowable wear thickness of dynamic and static contacts 3 mm
    Certification CE
    Warranty 12 months

    Dimensions: (Unit: mm)

    Vacuum circuit breaker inside constructionVacuum circuit breaker external construction

    Schematic Diagram:

    Vacuum circuit breaker schematic diagram

    Tips: Advantages of Vacuum Circuit Breaker

    1. Vacuum circuit breaker is a self-contained and does not require filling of oil or gas. They do not need auxiliary air system, oil handling system etc. No need of periodic refilling.
    2. Rapid recovery of very high dielectric strength on current interruption so that only half cycle or less arcing occurs after proper contact separation.
    3. Current interruption occurs at the first current zero after contact separation with no re-striking, making it exceptionally good for capacitor and cable switching and long line dropping.
    4. Very high power frequency and impulse withstand voltages with small contact spacing, allowing ease of actuation and timing.
    5. Constant contact resistance. In vacuum the contacts cannot oxidise, therefore, their very small resistance is maintained throughout their life.
    Existing reviews of 12kV Vacuum Circuit Breaker, 1250A, 2000A
    Good 12kV vacuum circuit breaker
    The price of this 12 kV vacuum circuit breaker is affordable. I used it for almost half a month. So far without any problems. I would highly recommend this breaker to anyone.
    From: Frederick | Date: 25/03/2022
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