Pushbutton, function: 3 N/O and 1 N/C, rated operational current 16A, rated operating voltage 400V AC, short-circuit strength 10kA, color of pushbutton: black, standard front dimension 45 mm, mounting width 1 SU (17.5mm), top-hat rail mounting, terminal cross-section 1-10 mm², type conform to IEC 60669, VDE 0632