The KYN28A-12/24(Z) indoor AC metal-clad switchgear, widely recognized as the cabinet, is engineered to operate within a voltage range of 3.6-24KV for three-phase AC 50HZ single busbar systems and single busbar segmentation systems. This all-encompassing power distribution equipment is predominantly used in power plants, substations, industrial and mining enterprises, high-rise buildings, and various other environments for the reception and distribution of power. Additionally, it serves purposes of circuit control, protection, and monitoring, making it a versatile choice for many applications.
Our product's circuit breaker is designed with a middle mounting mode, offering the flexibility to choose between VS1 (ZN63A) type or VD4 type vacuum circuit breakers. It also supports a comprehensive range of vacuum circuit breakers from numerous domestic and international specifications and models, ensuring adaptability to a wide array of requirements.
Conforming to Standards: GB3906-2006 "3.6kV~40.5kV AC metal-enclosed switchgear and control equipment", DL404-2007 "Indoor AC high-voltage switchgear ordering technical conditions", and IEC298 (1990) "Rated voltage above 1KV and below 5CKV AC metal-enclosed switchgear and control equipment".
| >>>>Main Technical Parameters |
|
| sports event |
unit |
|
|
| Rated voltage |
kV |
7.2,12,24 |
| Rated frequency |
Hz |
50 |
| Rated current |
A |
630,1250,1600,2000,2500,3150,4000 |
| 4S Thermal stability current |
kA |
16,20,25,31.5,40,50 |
| Rated dynamic stability current (peak) |
kA |
40,50,63,80,100,125 |
| Rated short-circuit breaking current |
kA |
16,20,25,31.5,40,50 |
| Rated short-circuit closing current (peak) |
kA |
40,50,63,80,100,125 |
| Rated insulation level 1min frequency withstand voltage |
kV |
32 42,65 |
| kV |
60,75,125 |
| Rated operation sequence |
|
0-0.3S-C0-180S-CO |
| Rated short-circuit breaking current |
the second |
50 |
| Mechanical life time |
the second |
20000 |
| Contact opening distance |
mm |
11±1 |
| Overtravel |
mm |
4±0.5 |
| Centre distance between phases |
mm |
210,275 |
| Bouncing time of closing contact |
mS |
≤2 |
| Three-phase switching non-simultaneous |
mS |
≤2 |
| Breaking time (when operating force is applied) Max. |
ms |
≤50 |
| ms |
≤50 |
| ms |
≤60 |
| Closing time |
ms |
≤100 |
| Average opening speed |
m/s |
0.9~1.2 |
| Average closing speed |
m/s |
0.6~0.8 |
| protection class |
|
P4X(When the breaker compartment door is openIP2X) |
Product Advantages:
Certified by Leading Authorities: ISO, CE, CCC, and more.
- Cutting-edge SQA quality management system guarantees superior product quality.
- Expedited quotation services, inclusive of comprehensive electrical design offerings.
- Prompt delivery schedules, with the fastest global dispatch ranging from 10-15 days.
- All-encompassing after-sales service system ensures a hassle-free purchase experience.
- We welcome factory visits and offer OEM/ODM services for tailored guidance.
Q: Are you a manufacturer, factory, or trading company?
A: Absolutely. With over twenty years of expertise, we excel in the development, production, and operation of power distribution equipment, including transformers, switchgear, and substations.
Q: How can I place an order?
A: Request a quotation from us → Customize with drawings and samples → Inform us of usage scenarios → Receive our product design recommendations → Negotiate details → Confirm samples → Sign a contract and make a deposit → Begin mass production → Prepare goods → Balance payment and delivery → Further cooperation.
Q: What shipping methods are available?
A: We offer shipping via Ocean Express, China Express, and other express routes. If alternative shipping methods are required, please contact us for further arrangements.
Q: How can I trust your company?
With numerous patent certificates, ISO9001, and ISO14001 certifications, our products are globally utilized. As an audited diamond supplier on Made in China, we are dedicated to providing high-quality products at competitive prices.
Q: What are the delivery timelines for production and shipment?
A: Delivery timelines vary based on order quantity, typically within 15 days post receipt of prepayment.
Q: Can your products be customized?
A: Absolutely. Given the diverse voltage, frequency, and other specifications across different regions, we can customize our transformer products to meet your specific requirements.
Our products can be customized to suit your specific requirements.
Q: How can I confirm the payment?
A: We accept wire transfers and PayPal, among other payment methods. Prior to making a payment through other methods, please contact us. Typically, a 20-30% deposit is required, with the balance payable before installation.
Audited Supplier 
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