Secondary Switchgear, Series KYN28A-12

Series KYN28A-12 secondary switchgears are 3-phase AC, 50Hz main and branch busbars segmented power distribution devices. They are primarily used for acceptance and distribution of 3 to 10kV of electricity, as well as control, protect, and test the circuit. Vacuum circuit breakers are equipped inside, with observation windows on the exterior to allow users to observe inner component working conditions at any time. The switchgear bodies feature an IP4X protect class, and when the cart doors are open, the protection class is IP2X. These switchgears are also designed to be condensation resistant and dirt resistant, thus ensuring employee safety. These secondary switchgears are widely used for industrial and mining enterprises, power plants, and substations. We also offer switchgear customization according to customer requirements.

• Ambient temperature: -15℃—+40℃
• Ambient humidity:
  Daily average relative humidity ≤95%, daily average vapor pressure of water≤2.2kPa;
  Monthly average relative humidity ≤90%, monthly average vapor pressure of water≤1.8kPa
• Altitude: ≤1000m;
• Seismic intensity: ≤ magnitude 8
• Ambient air: without obvious pollution by corrosive or flammable gas and steam
• Places without regular strenuous vibration
• In use beyond normal conditions in GB3906, users should consult us.