The KYN28-12 armored removable AC metal-enclosed switchgear is suitable for 3.6-12kV three-phase AC 50Hz power grid, designed to receive and distribute electrical energy while providing control, monitoring, and protection for the circuit. It can be utilized with single busbar, single busbar segmentation systems, or double busbar systems.
This switchgear meets rigorous international standards including IEC298, IEC694, GB3906, and DIN.VDE0670. It features a complete and reliable anti-misoperation function, ensuring maximum safety and efficiency in power distribution environments.
| Component Legend | |
|---|---|
| A. Busbar compartment B. Circuit breaker compartment C. Cable compartment D. Instrument compartment |
1. Shell (1.1 Pressure release / 1.2 Cable cover) 2. Branch busbar / 3. Busbar 4. Static contact / 5. Spring contacts 6. Grounding gate / 7. Current transformer 8. Voltage transformer |
| 9. Unloading partition 10. Secondary plug / 11. Auxiliary switch 12. Movable curtain / 13. Pull-out hand car |
14. Operating mechanism / 15. Cable seal 16. Base plate / 17. Screw mechanism 18. Main busbar / 19. Horizontal partition |
1. K: Armoured removable metal-enclosed switchgear
2. Y: Move away
3. N: Indoor conditions of use
4. 28: Design serial number
5. 12: Rated voltage (kV)
*Note: Avoid fire, explosion hazards, serious pollution, chemical corrosion, and severe vibration.
| PROJECT | UNIT | DATA |
|---|---|---|
| Rated voltage | kV | 12 |
| Rated frequency | Hz | 50 |
| Rated current of main bus | A | 630-1250 |
| Current rating | A | 630-1250 |
| Short-Time Withstand Current (2S) | kA | 27.3 |
| Short-Time Withstand Current (4S) | kA | 25-31.5 |
| Rated peak withstand current | kA | 63-80 |
| Short-circuit interrupting current | kA | 31.5 |
| Ingress protection | - | Shell IP4X |






Our company is a technology-oriented transmission and distribution equipment manufacturing enterprise. Since establishment, we have focused on technological innovation, introducing new energy prefabricated solutions, environmental protection cabinets, transformers, and intelligent high/low voltage equipment.
Equipped with a helium leak detection system and local discharge test laboratories, all products are tested according to international IEC standards. The enterprise holds ISO9001, ISO14001, and OHSAS18001 certifications.