3SE52420LE10,LIMIT SW,METAL ROLLER LEVER,1NO+
3SE52420LK21,LIMIT SW,METAL ROLLER CRANK,1NO+
3SE52420MC05,LIMSW,ROUND PLUNGER,1NO+2NC,OVER
3SE52420MC051CA0,LIMSW,ROUND PLUNGER,1NO+2NC,OVER
3SE52420PC05,LIMSW ,ROUND PLUNGER,2NO+1NC,SLO
3SE52420PC051CA0,LIMSW ,ROUND PLUNGER,2NO+1NC,SLO
【SIEMENS】3SE5242-0QV40,
3SE52421KC05,LIMSW ,RND PLNGR,1NO+2NC,SLOW,2M