Universal Rotary Switch: This 3-position (1-0-2) locking box rotary switch has 8 screw terminals and is suitable for mounting plates between 1mm and 4mm thick. The switch offers flexible operation and easy installation. Excellent Electrical Conductivity: The universal rotary switch features internal galvanized copper components and silver alloy contacts, resulting in low specific resistance, good electrical conductivity, wear resistance, oxidation resistance, no arcing, and high-temperature resistance thanks to the thickened alloy. IP65 Waterproof Housing: This IP65 waterproof emergency switch is dustproof and can be used in various harsh environments. It is robust and has a long service life. Flame Retardant PC Material: The main switch's outer casing offers good insulation, high-temperature resistance, and is not prone to aging thanks to its enclosed design. The universal rotary switch can be used to control various types of circuits and can also improve the device's functionality and performance. Universal Emergency Switch: This switch is primarily suitable for electrical switching of circuit breakers and short-circuit rotors, starter motors, inverters, and speed switches for asynchronous motors, as well as for converting control currents.