Technical Parameters |
Value |
Rated Short-Time Withstand Current |
25kA (4s) |
Rated Short-Circuit Making Current (Peak) |
63kA |
Busbar Dynamic Stability Current |
80kA |
Busbar Thermal Stability Current |
25kA |
Circuit Breaker Mechanical Life |
10000 times |
Circuit Breaker Electrical Life |
5000 times |
Earthing Switch Short-Time Withstand Current |
25kA |
Earthing Switch Peak Withstand Current |
63kA |
Protection Level |
Shell IP4X, Circuit breaker chamber door open IP2X |
Product Description
The KYN28 indoor metal armored withdrawable switchgear is expertly crafted for exceptional performance in power plant transmission and power system operations. It serves a critical role in industrial and mining enterprise substations, excelling in receiving, distribution, control, and protection tasks. Designed for frequent high-voltage motor starts, it adheres to stringent 'five prevention' interlocking standards. This switchgear can house either the ABB VD4 or the domestic VS1 vacuum circuit breakers, delivering a state-of-the-art high-performance distribution solution. With its versatile scheme combination, it boasts an elegant compact structure complemented by unparalleled safety and reliability. Maintenance is a breeze, and its remarkable impact and corrosion resistance further enhance its appeal.
Product Features
- Boasting a robust metal-clad design, this switchgear offers outstanding protection performance, ensuring durability and reliability.
- Engineered with a complete interlocking mechanism, it effectively prevents any misoperation, prioritizing safety at all levels.
- The design includes a thoughtfully planned internal space layout, which enhances the ease of component installation and wiring.
- Equipped with a high-quality sealing cabinet door, it efficiently guards against dust and moisture intrusion, enhancing longevity.
- Its adaptability to a vast array of complex operating environments ensures it meets the demands of diverse applications.
Application Scope
This versatile switchgear is extensively utilized across power plants, substations, and industrial and mining enterprises. It excels in power distribution, control, and protection, providing unwavering reliability.
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FAQ

Q1:
Are we a manufacturer or a trading company?
A1:With 16 years of expertise, we specialize in the design and production of high and low voltage switchgear, distribution cabinets, and distribution boxes.
Q2:How to purchase?
A2:Reach out to us with your inquiry → provide drawings, requirements, and customization needs → inform us of your usage scenarios → receive our expert product design suggestions → negotiate details → confirm sample → sign contract/deposit → mass production → goods ready → balance payment/delivery → initiate further cooperation.
Q3:About OEM/ODM?
A3:Absolutely! 1. We can customize any product to your exact specifications. 2. We offer comprehensive design solutions to meet your needs.
Q4:What about sample acquisition?
A4:For standardized styles, we will send you a sample. You will be charged for the sample price plus all associated shipping costs, which depend on the number of samples.
Q5:What about MOQ?
A5:Our minimum order quantity is just 1 piece.
Q6:What about the time limit for getting a quote?
A6:Typically, we provide a quotation within 24 hours after receiving your inquiry and confirming the technical details.
Q7:What about the delivery time?
A7:Delivery time varies by product demand and quantity. Usually, after receiving the deposit, it takes 10 to 30 working days. We will confirm based on the actual situation.
Q8:
What about the shipping method?
A8:
Yes, sea freight is our standard; however, we offer other shipping methods as well. For alternative routes, please contact us.
Q9:
What about quality and warranty?
A9:
Within 24 months from the delivery date (typically 12 months in the industry), if any accessories have issues, simply provide photos of the damaged parts, and we will supply free replacements. We also offer free wearing parts depending on the quantity purchased and technical support upon request.
Q10:
What about payment methods?
A10:
a. 30% T/T in advance as deposit ,balanced against the shipping documents
b. irrevocable L/C at sight for order which amount is over 100 thousand USD
C. for old business partner,we can negociate together for other special terms