The Siemens 3SU1 series is a round plastic black coloured quadruple pushbutton. Product line is made up of plastic of size 22mm. The operating temperature range is from -25°C to +70°C. The quadruple pushbutton mounting diameter is 22.3mm and mounting height is 18mm.
It has protection class of IP65, IP66 Degree of protection NEMA 1, 2, 3, 3R, 4, 4X Maximum Operating frequency 3 600 1/h
