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  • KYN28A-12 Switchgear — white-background equipment view
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  • KYN28A-12 switchgear on a white background, view 3
KYN28A-12 Switchgear — white-background equipment view
KYN28A-12 switchgear on a white background, view 2
KYN28A-12 switchgear on a white background, view 3
KYN28A-12 Switchgear — white-background equipment view KYN28A-12 switchgear on a white background, view 2 KYN28A-12 switchgear on a white background, view 3

KYN28A-12 Metal-Clad Withdrawable Switchgear

KYN28A-12 is indoor metal-clad withdrawable switchgear for three-phase AC power distribution. It receives and distributes electrical power while providing circuit control, protection and monitoring. The withdrawable design supports access to the switching unit for inspection and maintenance. Select the busbar rating and short-circuit withstand level to suit the project specification.

Request a Quote

Send the model, required ratings, quantity, installation conditions and destination. Include a single-line diagram or specification when available.

KYN28A-12 Switchgear is an indoor metal-clad withdrawable assembly for three-phase AC power distribution. Compare the selected voltage variant, busbar and feeder ratings, fault duty and service conditions before defining the lineup.

KYN28A-12 Switchgear Specifications

Electrical Ratings

Parameter Unit Series data
Rated voltage kV 12; a 24 kV variant is listed separately in the series documentation
Rated frequency Hz 50; 50/60 Hz availability depends on the selected variant
Main busbar rated current A 630, 1250, 2000, 2500, 3150, 4000; up to 5000 for specified variants
Branch busbar rated current A 630, 1250, 2000, 2500, 3150, 4000
Rated short-time withstand current (4 s) kA 16, 20, 25, 31.5, 40, 50
Rated peak withstand current kA 50, 63, 80, 100, 125
Rated short-circuit duration s 4

Service Conditions

Parameter Condition
Maximum ambient temperature +40 °C
Minimum ambient temperature −10 °C; −15 °C or −25 °C for specified variants
Daily average temperature ≤ +35 °C
Daily average relative humidity ≤ 95%
Monthly average relative humidity ≤ 90%
Altitude 1000 m; 2000–3000 m for specified variants

Ratings are series options, not a single combined configuration. Confirm the voltage variant, current rating, fault level and service conditions when requesting a quotation.

Selection questions for KYN28A-12

Does a 10 kV network require a different model name?

Network nominal voltage and equipment rated voltage are different quantities. Compare the specified network conditions with the selected 12 kV equipment variant and insulation levels. The 10 kV versus 12 kV guide explains what to check; it does not establish suitability from the model suffix alone.

Which values define the offered lineup?

Identify the busbar and feeder currents, fault duty and duration, breaker/protection arrangement, cable interfaces and service conditions on one technical schedule. Do not combine the highest options in the series table into an assumed configuration.

Review substation applications and define the drawings, inspections and records with the factory acceptance checklist. Prepare the enquiry inputs before requesting a configuration.