The KYN28A-12/24 armored withdrawable indoor AC metal-enclosed switchgear is suitable for three-phase AC 50Hz, 3.6~24kV single busbar and single busbar section power systems. It is mainly applicable to secondary substations of power systems, power reception and transmission in petrochemical industries, industrial and mining enterprises, public utilities, municipal engineering, commercial buildings, etc., for receiving and distributing electrical energy, and for implementing control, protection and monitoring of circuits. 

Complies with the requirements of standards such as GB3906 and IEC60298, and possesses a complete "five-prevention" function. 

Performance features: 

The protection level reaches IP4X. It is small in size, light in weight, has high mechanical strength, and has an attractive appearance. It also has a pressure release channel inside, ensuring safety and reliability, as well as superior performance. 

Through the internal arc ignition type test, the enclosure has a high level of protection, making the operators safer; the electrical clearance is greater than 125/180mm, and the composite insulation air gap meets the national standards. 

It is equipped with a complete mechanical interlock device for preventing improper operation, effectively preventing electrical maloperation. 

The product is made by using galvanized sheet or aluminized zinc sheet and is bonded together with steel nails. It has high strength, excellent corrosion resistance and oxidation resistance.