ED SERIES SAFETY LIMIT SWITCH Description The ED series safety limit switches conform to EN 50047 and have been developed to provide a range of options including plastic cases in various sizes, a choice of snap acting, slow break/make with 2 contact configurations and a choice of actuator heads. The ED series offers the option of rotating the head in 90 increments before installation to allow ease of mounting. Highly limit switches can be used in other applications other than guard doors, for example on moving machine beds, crane arms, lifts, elevators, etc. Operation of these limit switches is achieved by the sliding action of the guard or other moving object deflecting the plunger or lever. For safety applications it is important that upon actuation, the guard or other moving objects should not pass completely over the switch and allow the plunger or lever to return to its original position. Features Conforms to EN (TUV) standards corresponding to the CE marking Positive opening operation of NC (Normally Closed) contacts conforming to IEC /EN 60947-5-1 Double insulation makes ground terminal unnecessary (Bears marking) Wide standard operating temperature range: -25 C to 80 C Full range of actuator heads and levers suitable for safety applications Sealing up to IP 67 Wide switch variations, (Snap action and slow action basic switches) International conduit sizes Specifications Standards EN60947-5-1, UL508, EN50047, EN1088 Approvals cULus, TUV and CE marked for all applicable directives Positive Opening Operation NC Contact Utilization Category AC15 A600 Min Current 5V, 5mA, DC Thermal Current (lth) 10A Rated Insulation Voltage 600V AC Rated Impulse withstand Volt 2500V AC Insulation Resistance 100M min. (DC 500V) Contact Resistance 25m max. (Initial) Max Switching Speed 250mm/s Max Switching Frequency 6000 operation per hour Enclosure Material UL approved glass-filled polybutylene terephthalate Roller Material Various polymers Enclosure Protection IP 67 Operating Temperature Min -25 C (-18 F) Max 80 C (+176 F) Pollution Degree 3 Protection Against Electric Shock Class II (Double Insulation) 7 Mech. Life Expectancy 1 x 10 Cycles min Electrically Life Expectancy 150,000 Cycles min Vibration IEC 68-2-6, 10-55Hz 1 Hz, Excursion: 0.35mm,1octave/min Conduit Entry Various (see Product Selection table) Fixing 2 x M4 A7 HIGHLY Design, specifications are subject to change without notice.ED SERIES SAFETY LIMIT SWITCH Structure Description Hand Metal Lever Setting With roller lever models, the direction of the Grooves which engage the lever every switch head can be varied to any of the four 18 are cut in the operation indicator directions by loosening the roller lever switch disk to prevent the lever from slipping screws at the four corners of the head. against the rotary shaft. Contact Block Wide switch variations. Snap-action: 1NC/1NO Slow-action: 1NC/1NO, 2NC Conduit Cover Wide switch variations. The cover, with a hinge on its lower PG13.5 PG11 part, can be opened by removing the M16 M20 screw of the cover, which ensures 1/2-14NPT ease of maintenance and wiring. Product Selection ED- - - 1 2 3 1.THREAD DIMENSION 2.CONTACT TYPES 3.HEAD AND ACTUATOR OF LEAD EXIT 1: PG13.5(S) 1: 1NC/1NO SLOW ACTION (BBM)(S) 20: Roller arm type 2: 1/2NPT(C) 2: 2NC SLOW ACTION(O) 21: Adjustable roller arm type (standard roller) 4: PG11(O) 3: 1NC/1NO SNAP ACTION(C) 22: Adjustable roller arm type (Long arm type) 5: M16(C) 24: Thermoplastic end flexible rod type 4: 2NC/1NO SLOW ACTION 6: M20(O) 241: Cat whisker type 5: 3NC SLOW ACTION 7: Connector(C) 242: Wobble stick type *(s):standard (o):option (c): customization 25: Rod lever type 27: Adjustable roller arm type (Rubber roller) 271: Two-Way Adjustable Roller Arm Type (Rubber roller) 31: Push plunger type 32: Roller plunger type 62: Roller lever type 63: One-Way roller arm lever type Contact Block Form TYPE CONTACT FORM CONNECTOR PIN ARRANGEMENT OPERATION DIAGRAMS 1NC/1NO(Slow action) ED- -1- (See Note 1) 2NC (Slow action) ED- -2- (See Note 2) M12 Connector pin arrangement 1NC/1NO(Snap action) ED- -3- (See Note 1) ED- -4- 3NC (Slow action) No Connector TYPE ED- -5- 2NC/1NO(Slow action) A8 HIGHLY Design, specifications are subject to change without notice.