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KYN28A-12 Armored Withdrawable Metal Enclosed Medium Voltage Switchgear
Product introduction
KYN28A-12 switchgear sets the standard for excellence in powering and protecting critical electrical systems.This switchgear is designed for 3-12kV three-phase AC 50Hz single bus and single bus segmented systems. It is a complete solution for power receiving, transmitting and starting in power plants, small and medium-sized large high-voltage motors, generators, power distribution in industrial and mining enterprises, and secondary substations of power systems. It is a multi-functional essential component for protection, control and monitoring purposes, meeting the requirements of DLT404-91, IEC298, GB3906 and other standards.
One of the outstanding features of the KYN28A-12 switchgear is its robust construction. It comes in an armored removable AC metal package that provides unparalleled protection and durability, ensuring reliable performance in even the most demanding environments. This level of ruggedness makes it ideal for applications where the safety and integrity of electrical systems is critical.
In addition to physical strength, KYN28A-12 switchgear offers a range of advanced features. It has the functions of preventing the on-load push-pull circuit breaker handcart, preventing the circuit breaker from mistakenly opening and closing, and preventing the grounding switch from closing when it is in the closing position. In addition, there are measures to prevent accidental entry into live isolation, and the interlocking function of the grounding switch ensures that it will not be accidentally closed during charging. These safety mechanisms make KYN28A-12 switchgear a reliable and safe choice for critical power distribution applications.
The KYN28A-12 switchgear’s compatibility with VS1 vacuum circuit breakers or ABB VD4 vacuum circuit breakers further enhances its versatility. This flexibility allows for customization to specific project requirements, ensuring that switchgear can be customized to meet the unique needs of different applications. Whether used in power plants, industrial facilities or secondary substations, KYN28A-12 switchgear delivers consistent, reliable performance.
The KYN28A-12 series switch cabinet is a power distribution equipment with excellent performance and excellent reliability. Its armored removable AC metal-enclosed design, coupled with a comprehensive set of safety features and compatibility with leading vacuum circuit breakers, makes it the first choice for a variety of applications.
Basic technical parmeters
Rated voltage | 12KV |
Power frequency withstand voltage | 42kV/1min |
Impulse withstand voltage | 75kV |
Rated frequency | 50Hz |
Rated current | 630-4000A |
Rated thermal stability current | 6-50kA/4S |
Rated dynamic stability current | 40-125kA |
Rated short-circuit breaking current | 16-50kA |
Rated short-circuit making and breaking current | 40-125kA |
Rated voltage of opening/dosing and auxiliary circuit | DC24、30、48、60、110、220V、AC110、220V |
Outline size(W×D×H) | 800、1000×1500、1660×2300mm |
Protection level | IP4X(Endosure)、IP2X(The circuit breaker door opens) |


