岳好紧好湿夹太紧了好爽矜持_亚洲日韩va无码中文字幕_丰满少妇高潮惨叫久久久一_久久伊99综合婷婷久久伊_精品久久久久久无码人妻

KYN28A-7.2 (F-C) Armoured, removable AC metal-enclosed switchgear  Medium voltage switchgear

The product is a switchgear consisting of AC high-voltage vacuum contactors and AC high-voltage current-limiting fuses as the main components (also called integrated starter cabinet). It is suitable for high-capacity, small-current, frequent opening and closing systems and has a better cost performance ratio compared with vacuum circuit breakers. The product is widely used in power plants, mines, metallurgy, chemical and other industries to control and protect motors and transformers, and can be arranged and combined with KYN28A cabinet to form a complete set of power distribution system devices.