EK series

-It is a tongue (or key) operated safety interlock switch designed to fit at the leading edge of sliding, hinged or lift-off guards. With its dual entry slots and rotatable head, the versatile EK series can offer up to eight different actuator entry options.
-Operation of the switch is achieved through the insertion of a specially profiled stainless steel key that is permanently mounted to the guard door.
-Available with one N.C. safety contact and one N.O. auxiliary contact or two N.C. contacts, it is sealed to IP 67 and has carious conduit entries. A blanking plug is supplied
More Details
-Fits on 25 mm tubing, ideal for small, light weight guards.
-Contacts: Slow action 1N.C. /1N.O. ; 2N.C. ; snap action 1 N.C. / 1N.O.
-Positive opening mechinaism.
-Double-insulation structure 
-Eight possible actuator entry points, easy to install.
-90 degree and straight key.
-IP 67 enclosure rating.
-Robust stainless steel keys.
-Standards:  EN60947-5-1, UL508, EN50047, EN1088
-Approvals:  cULus, CE
-Positive opening operation: NC contact
-Utilization category:   AC 15  A600
-Min current:   5V, 5mA, DC
-Thermal current (lth): 10A
-Rated unsulation voltage: 600V AC
-Rated impulse withstand volt: 2500V  AC
-Insulation resistance: 100 M W  min. (DC  500V)
-Contact resistance:    25 M W  max. (Initial) 
-Max switching frequency: 6000 operation per hour
-Enclosure material:  UL approved glass-filled polybutylene terephthalate
-Enclosure protecion: IP 67
-Operating temperature: Min -25℃ (-18℉) Max 80℃ (+176℉). 
Purchase Guide:
EK - 
                        (1)  (2)   (3)
(1) Thread Dimension of Lead Exit
     1: PG13.5 (S)     2: 1/2NPT (C)
     4: PG11 (O)       5: M16 (C)
     6: M20 (O)        7: Connector (C)
     *(S)standard   (O)option   (C)customization
(2) Contact types
     15: 1NC/1NO SLOW ACTION (BBM)(S)
     25: 2NC SLOW ACTION (O)
     35: 1NC/1NO SNAP ACTION (C)
(3) Key type
     F: Flat (O)
     R: Right angle (S)
     A: Adjustable (C)