Zago Electric
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KYN28-12 is a 12kV indoor metal-clad withdrawable switchgear designed for 3.6–12kV AC power systems. It features a mid-mounted withdrawable truck, five-prevention interlock, compartmentalized structure, IP4X protection, and independent pressure relief. With high interchangeability, low maintenance, and strong safety, it is widely used in power grids, substations, industrial, petrochemical, infrastructure and new energy projects. Fully meets IEC 62271 & GB standards.
| No. | Item | Unit | Technical Parameters | ||
|---|---|---|---|---|---|
| 1 | Rated Voltage | kV | 12 | ||
| 2 | Rated Frequency | Hz | 50 | ||
| 3 | Rated Current | A | 630/1250/1600 | 2500/3150 | 4000 |
| 4 | Insulation Level (Power Frequency) | kV | 42 (Isolation break: 48) | ||
| 5 | Lightning Impulse Withstand | kV | 75 (Isolation break: 85) | ||
| 6 | Short-Circuit Breaking Current | kA | 25 | 31.5 | 40 |
| 7 | Short-Circuit Making Current (Peak) | kA | 63 | 80 | 100 |
| 8 | Protection Degree | - | IP4X | ||
| 9 | Cabinet Height | mm | 2360 | ||
