Home 12KV Metal-enclosed Drawout Switchgear

12KV Metal-enclosed Drawout Switchgear

The KYN28A-12(Z) metal-enclosed drawout switchgear is a kind of three-phase AC 50Hz or 60 Hz power distribution equipment in single-busbar and single-busbar sectioning systems. It conforms to the standards of IEC298 and GB3906. It has five kinds of error prevention functions, i.e., preventing pushing or pulling circuit breaker handcart with load, preventing mistakenly switching the circuit breaker, preventing closing the circuit breaker when the earthing switching is closed, preventing mistakenly entering the charged compartment, and preventing closing the earthing switch when charged.

12KV Metal-enclosed Drawout Switchgear

This product is mainly used for the monitoring, control, and protection of power transmission in power plants, power distribution in industrial and mining enterprises, power receiving in secondary substation, and starting of large high voltage motors.


Our 12KV metal-enclosed drawout switchgear can be equipped with the VD4 vacuum circuit breaker from ABB Company or the domestic VS1 (ZN63) one. In addition, we can provide product meeting the requirements of preventing salt spray, mildew, and moisture for offshore oil platforms.

Technical Parameters
Item Unit Data
Rated voltage KV 3.6, 7.2, 12
Rated insulation level 1min power frequency withstand voltage KV 42
Lightning impulse withstand voltage KV
Rated frequency Hz 50/60
Rated current of the main busbar A 630, 1250, 1600, 2000, 2500, 3150, 4000, 5000
Rated current of the branch busbar A 630, 1250, 1600, 2000, 2500, 3150, 4000, 5000
3s thermal stability current (rms) KA 16, 20, 25, 31.5, 40, 50
Rated dynamic stability current (peak) KA 40, 50, 63, 80, 100, 125
Protection class Shell: IP4X IP2X when the compartment door is open
Dimensions W×D×H mm3 Rated current ≤1250A: 650×1500×2300
Rated current≤1600A: 800×1500×2300
3150≥Rated current≥1600A: 1000×1500×2300
Rated current >3150A: 1000×1660×2300


Note: a. When the rated current is not more than 3150A and the incoming and outgoing wires are overhead, the cabinet depth is 1660mm.
b. When the rated current is greater than 3150A, and the incoming and outgoing wires are overhead, the cabinet depth is 1760mm.


Related Names
Power Control Equipment | Air Insulated Switchgear | Electrical Power Distribution Device


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