SIEMENS » 3SE2120-0DV00-0AF7
POSITION SWITCH METAL-ENCLOSED, ROLLER PLUNGER FORM C SLOW-ACTION CONTACTS 1NO+1NC 1XM20X1.5 AND CONNECTOR SOCKET 3SY3131, 6-POLE AND PE PIN ALLOC.: PIN1=21,PIN2=22, PIN3=13,PIN4=14 PIN5=NOT USED PIN6 GROUND LED PE CONNECTED WITH STAINLESS STEEL ROLL AND T ,