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CCHN Industry

CCHN is a trusted U.S. registered company in industrial automation & controls, CCHN's goal is helping saving your money by bypassing all kinds of local dealers/agents in buying industrial automation products from Chinese manufacturers directly. You will be enjoyed to get free tech support on how to choose, how to wire, how to commissioning with CCHN professional engineers. Shopping for your automation systems on CCHN one-stop online store now. The price on the website only for sample reference. for Mass order,please send the enquiry to us.

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Foam cutting is a device for processing materials in the chemical industry such as foam and sponges. It mainly uses the high

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CCHN Industry
 
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CCHN Industry

CCHN is a trusted U.S. registered company in industrial automation & controls, CCHN's goal is helping saving your money by bypassing all kinds of local dealers/agents in buying industrial automation products from Chinese manufacturers directly. You will be enjoyed to get free tech support on how to choose, how to wire, how to commissioning with CCHN professional engineers. Shopping for your automation systems on CCHN one-stop online store now. The price on the website only for sample reference. for Mass order,please send the enquiry to us.

Blog

Foam cutting is a device for processing materials in the chemical industry such as foam and sponges. It mainly uses the high

...
12kV Vacuum Circuit Breaker, 1250A, 2000A
 
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12kV Vacuum Circuit Breaker, 1250A, 2000A


$751.09
12kv vacuum circuit breaker at affordable price for sale online. Rated short circuit breaking current about 20kA, 40kA and 50
SKU: CHN-VCB-12A
Free Shipping Worldwide
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)

ModelCHN-VCB-12A
Rated voltage12 kV
Maximum operating voltage12 kV
Rated current630 A, 1000 A, 1250 A, 1600 A, 2000 A, 3150 A
Rated short circuit breaking current20/25 kA, 31 kA, 40 kA, 50 kA
Rated short circuit switching current50/63 kA, 80 kA, 100 kA, 125 kA
Rated peak withstand current50/63 kA, 80 kA, 100 kA, 125 kA
4S Rated short-time withstand current20 kA, 31 kA, 40 kA, 50 kA
Rated insulation levelpower frequency withstand voltage (rated open circuit before and later): 42 kV
impulse withstand voltage (rated open circuit before and later): 75 kV
Mechanical life20000 times
Rated closing voltage of operating mechanism (DC)110 V, 220 V
Rated switching voltage of operating mechanism (DC)110 V, 220 V
Contactor torque11±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 contacts3 mm
CertificationCE
Warranty12 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.