Rain proof crane control pushbutton switch is a newly developed products, which is beautiful , strong and ligh, reliable struction, advanced and big contact capacity; mechanical interlocking , and if necessary, it can achieve interock circuit to assure the more safety and reliable using . The products matched cable jacket and waterproof rubber sealing strip, have a good (IP65 level) performance of dust and rain. So it most suitable for the remote controll in outdoor, rainy and snowy, dusty and damp environment, such as electric hoist, open conveyor blt, building line etc.