KYN44A-40.5 armored removable AC metal-enclosed switchgear is suitable for three-phase AC 50Hz/60Hz, 40.5kV single bus and single bus segmented power system, mainly used in power plants, substations, industrial and mining enterprises, high-rise buildings, etc. It is used for receiving and distributing 35kV network electric energy in power transformation and distribution, and controls, protects and monitors the circuit. It meets the requirements of IEC60298, GB3906, DL404 and other standards, and has a complete "five prevention" function.

VB5(ZN21D) indoor high-voltage AC vacuum circuit breaker is an indoor high-voltage switchgear with rated voltage of 40.5kV and three-phase AC 50/60Hz. It can be used as the control and protection of electrical equipment in industrial and mining enterprises, power plants and substations, and it is suitable for frequent operation.