position switch metal enclosure according to EN 50047, 31 mm device connection 1 x (M20 x 1.5) 1 NO/2 NC slow-action contacts with M12 plug, 5-pole 2 NC connected pin assignment: Pin1=21, Pin2=22 Pin3=31, Pin4=32, Pin5=PE maximum 125 V and 4 A with plunger