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| Categories | Metal-clad Draw-out HV Switchgear |
|---|---|
| Model Number: | KYN28A-12 |
| Main Busbar Rated Current: | 1250/1600/2500/3150/4000/5000*A |
| Rated Power Frequency Withstand Voltage (1min) - Across the Breaker: | 48KV |
| Internal Arc Fault Current: | 31.5/150KA |
| Rated Peak Withstand Current: | 63/80/100KA |
| Rated Lightning Impulse Withstand Voltage - Phase-to-Phase & Phase-to-Ground: | 95KV |
| Enclosure Protection Class: | IP3X/IP4X |
| Rated Short-Time Withstand Current (4s): | 25/31.5/40/50(3s)KA |
| Rated Power Frequency Withstand Voltage (1min) - Phase-to-Phase & Phase-to-Ground: | 42KV |
| Brand Name: | ChangYun |
| Ratedcurrent: | Up to 3150A |
| Mechanical Life: | 10000Times |
| Rated Voltage: | 12KV |
| Rated Frequency: | 50HZ |
| Rated Feeder Current: | 630-3150/4000\-5000A |
| Certification: | ISO9001 |
| Place of Origin: | China |
| Rated Lightning Impulse Withstand Voltage - Across the Breaker: | 125kv |
| Company Info. |
| Jiangsu Changyun Intelligent Technology Co., Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
The KYN28-12 Indoor Metal-Enclosed Withdrawable AC Switchgear is a reliable medium voltage power distribution solution designed for 3.6kV–12kV, 50Hz three-phase AC systems. It is widely used for electrical energy receiving, distribution, control, protection, and monitoring in power plants, substations, industrial facilities, commercial buildings, and utility distribution networks.
Featuring a metal-clad structure, withdrawable vacuum circuit breaker design, and modular compartment layout, the KYN28-12 switchgear provides excellent operational safety, convenient maintenance, and flexible configuration options.
The switchgear consists of independent compartments for busbars, circuit breakers, cables, and low-voltage control units, effectively improving insulation performance, arc protection, and operator safety.
With standardized design and proven performance, KYN28-12 is suitable for both new power distribution projects and upgrading existing substations, providing a safe, efficient, and cost-effective medium voltage switchgear solution.
| Parameter | Specification |
|---|---|
| Rated Voltage | 3.6kV / 7.2kV / 12kV |
| Rated Frequency | 50Hz |
| Rated Current | Up to 4000A |
| Rated Short-Time Withstand Current | Up to 40kA |
| Rated Peak Withstand Current | Up to 100kA |
| Main Switching Device | Vacuum Circuit Breaker |
| Installation Type | Withdrawable |
| Protection Degree | IP4X |
| Structure Type | Metal-Clad Enclosed |
| Phase System | Three-Phase AC |
| Application | Indoor Distribution System |
Complete technical parameters are available in the product datasheet.
The KYN28-12 medium voltage switchgear is widely applied in:
KYN28-12 is an indoor medium voltage metal-enclosed switchgear used for power receiving, distribution, control, and protection in 3.6kV–12kV electrical systems.
KYN28-12 uses a withdrawable vacuum circuit breaker design, allowing easier maintenance and faster replacement compared with fixed switchgear.
Yes. It is widely used in factories, industrial parks, mining facilities, and large power distribution systems requiring high reliability.
Yes. We provide OEM/ODM solutions including panel configuration, electrical components, dimensions, and project-specific requirements.
The product is manufactured according to relevant IEC and national standards and can meet international project requirements.
Yes. We provide technical documentation, installation support, and customized solutions for global customers.
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