The KYN28A-12/24(Z) indoor AC metal-clad switchgear, commonly referred to 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 highly versatile power distribution equipment is predominantly utilized in power plants, substations, industrial and mining enterprises, high-rise buildings, and a variety of other settings for power reception and distribution, circuit control, protection, and monitoring.
Our product's circuit breaker employs a middle mounting mode, providing flexibility in selecting between VS1 (ZN63A) type or VD4 type vacuum circuit breakers. Furthermore, it supports a broad spectrum of vacuum circuit breakers from various domestic and international manufacturers, ensuring compatibility with multiple specifications and models.
Adhering to the highest 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,' our products ensure reliability and compliance.
| >>>>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 authoritative bodies: ISO, CE, CCC, and more.
- Utilizing a state-of-the-art SQA quality management system, we guarantee premier product quality.
- We offer rapid quotation services, including comprehensive electrical design support.
- Benefit from swift delivery timelines, with the fastest global dispatch ranging from 10-15 days.
- Our comprehensive after-sales service system ensures a worry-free purchase and ownership experience.
- We welcome factory visits and provide OEM/ODM services for personalized guidance and custom solutions.
Q: Are you a manufacturer, factory, or trading company?
A: Yes, with over two decades of expertise, we specialize 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 you require alternative shipping methods, please contact us for further arrangements.
Q: How can I trust your company?
With numerous patent certificates and ISO9001 and ISO14001 certifications, our products are widely used globally. As an audited diamond supplier on Made in China, we are committed to delivering high-quality products at competitive prices.
Q: What are the delivery timelines for production and shipment?
A: Delivery time varies 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 tailor our transformer products to meet your specific needs.
Our products can be customized according to your 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. A feasible 20-30% deposit is required, with the balance payable before installation.
Audited Supplier 
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