Universal Rotary Switch: The SZW26-20/D202.2BF rotary switch with a 3-position (1-0-2) locking box has 12 screw terminals and is suitable for mounting plates between 1mm and 4mm thick. This two-way switch offers flexible use and easy installation. Excellent Electrical Conductivity: The universal rotary switch is internally reinforced with galvanized copper parts and silver alloy contacts. It has low specific resistance, good electrical conductivity, wear resistance, oxidation resistance, no arcing, and high temperature resistance. IP65 Waterproof Enclosure: This IP65 waterproof emergency switch is dustproof and can be used in various harsh environments. It is robust and durable. Flame Retardant PC Material: The main switch's outer casing has good insulation performance, high temperature resistance, and does not age easily. It uses a sealed design. The universal rotary switch can be used to control various types of circuits and can also improve the usability and efficiency of the device. Universal Emergency Switch: This switch is mainly suitable for electrical switching of circuit breakers and short-circuit rotors, starters, inverters, and speed switches for asynchronous motors, as well as for converting control currents.