Product Description
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 |
The KYN28 indoor metal armored withdrawable switchgear is a paramount solution designed specifically for power plant transmission, power systems, and industrial and mining enterprise substations with multiple functions such as receiving, distribution, control, and protection. It is also adept at managing the frequent starting of high-voltage motors and adheres to the 'five prevention' interlocking standards for optimal safety. This switchgear can be equipped with either a vacuum circuit breaker or a domestic VS1 vacuum circuit breaker, providing unparalleled flexibility in scheme combinations. Its compact design, along with a robust selection of features like safety, reliability, effortless maintenance, and impact and corrosion resistance, marks it as a superior high-performance distribution device.
Product Features
- The product's metal-clad structure is meticulously constructed to offer exceptional protection performance, ensuring durability and safety.
- A sophisticated interlocking mechanism is embedded to fully prevent any misoperation, enhancing operational security.
- Ingeniously designed, the internal space layout is optimized for seamless component installation and wiring, ensuring efficient assembly and service.
- The cabinet door boasts excellent sealing performance, effectively safeguarding against dust infiltration and moisture, preserving the unit's integrity.
- Versatile by design, it can seamlessly adapt to a multitude of complex operating environments, offering unparalleled operational flexibility.
Application Scope
This versatile product finds extensive application across a wide spectrum of environments, including power plants, substations, and industrial and mining enterprises, where it serves pivotal roles in power distribution, control, and protection.
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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