3SU1801-0NB10-4HC2 SIEMENS3SU18010NB104HC2

AS-Interface enclosure for command devices 22 mm, round, Enclosure material plastic, Enclosure top part yellow, with protective collar, 1 control point plastic, A=EMERGENCY STOP mushroom pushbutton red, 40 mm, rotate-to-unlatch, 1 NC, 1 NC, spring-type terminal, floor mounting, Insulation displacement system on top