XLK23 series lever controller adopts the IEC standard, with reasonable structure. In the same type of products, it has small volume, light weight, convenient installation, and simple maintenance, bears flushes and uses facilely. Without changing the installation size, it may substitute controller directly, such as LK1, LK5, LK16, LK17, LK18 and LKW. This product is used in the traditional electric appliance control of industries such as metallurgy, hoist, mine, machinery and steel rolling.