Zago Electric
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KYN61-40.5KV Metalclad Drawout Switchgear
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, a robust five-prevention interlock system, and a compartmentalized structure. With IP4X protection and independent pressure relief channels, it ensures maximum safety. Highly interchangeable and requiring low maintenance, this switchgear is extensively utilized in power grids, substations, industrial plants, petrochemical facilities, infrastructure, and new energy projects. It fully complies with IEC 62271 and 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 | 1 min power freq withstand | kV | 42 (Relative) / 48 (Isolation) | |||
| 5 | Short-Circuit Breaking Current (RMS) | kA | 25 | 31.5 | 40 | ||
| 6 | Short-Circuit Making Current (Peak) | kA | 63 | 80 | 100 | ||
| 7 | Internal Arc Test (IAC) | kA | AFLR 25 / 31.5 / 40 | ||||
| 8 | Degree of Protection | - | IP4X | ||||
| 9 | Cabinet Height | mm | 2360 | ||||
Note: When using solid-insulated pole-type circuit breakers for 1250A and below, the cabinet width can be reduced to 650mm. For specific busbar lifting configurations, width can be optimized to 600mm.
