Plastic-bodied limit switches ENK Euronorm standard switch according to DIN EN 50041 Protection class IP 65 Hinged snap lid q l Standard actuators to DIN EN 50041 Benefits form A, B, C, D, F, G l Hinged snap lid for quick and easy l Large range of actuators access (screwdriver release) l 4 x 90 actuator positions l Lid hinges open to 150 (can also be l Snap action or slow make & break simply detached) contacts l Internal cover protects the contacts l Galvanically separated contacts during mounting l Forced disconnection of NC contacts l Screw terminals with self lifting clamps l Metal actuators for heavy duty for easy wiring applications l Transparent cover for easy adjustment l Cable entry M 20 x 1.5 and inspection l Protection class IP 65 l Body and lid PA 6 which is self extinguishing (UL-94-V0) Mounting a) Adjustable two slots for M 5 screws b) Fixed - two holes for M 5 screws for Options safety applications l Contact lock (safety pull button reset) l Contact LED display (LED protected within terminal chamber) l WK actuator (form F) can be supplied to order l WR actuator (form G) can be supplied to order l EEx certificated versions available acc. ATEX 100 a Accessory equipment page 53 Standard actuators DIN EN 50041 Type A Type B Type C Type D Type F Type G (Built to order) (Built to order) Contact configuration Contact type Switch function Switch contacts Reference Max. Voltage Max. constant current Slow make & break Changeover 1NC/1NO U1/U1Z 500 V 10 A Snap action Changeover 1NC/1NO SU1/SU1Z 500 V 10 A Slow make & break NC 2NC A2Z 400 V 6 A Slow make & break NC 3NC A3Z 400 V 6 A Slow make & break Changeover overlapping 1NC/1NO UV1Z 500 V 10 A 26Designation ENK-U1Z iw ENK-SU1Z iw ENK-U1Z Riw ENK-SU1Z Riw ENK-A2Z Riw Part number 608.1102.001 608.1152.007 608.1117.002 608.1167.008 608.1817.281 Circuit diagram p Forced disconnect to 11 12 11 12 11 12 13 14 13 14 IEC 947-5-1 chapter 3 21 22 21 22 21 22 23 24 23 24 Za: not galvanically separated contacts Zb: galvanically separated contacts p Zb p Zb p Zb p Zb p Zb Slow make & break/snap-action l/ /l l/ /l /l Internal seal (iw)/external seal (w) iw iw iw iw iw Contact travel mm Actuator force N (inch) Tol. 10% Tol. 0.25 mm 0.5 Actuator angle Actuator torque Ncm Tol. 3.5 Tol. 10% On Off Voltage max. 500 V AC 500 V AC 500 V AC 500 V AC 400 V AC Permanent current max. 10 A 10 A 10 A 10 A 5 A In-rush current complies with standards l l l l l IEC 947-5-1 AC 15/DC 13 Switching frequency max. 100/min. 100/min. 100/min. 100/min. 100/min. 6 6 6 6 6 Mechanical life number of switching actions 10 x 10 10 x 10 10 x 10 10 x 10 1 x 10 Operating temperature min./max. 30 C/+80 C 30 C/+80 C 30 C/+80 C 30 C/+80 C 30 C/+80 C 22 F/+176 F 22 F/+176 F 22 F/+176 F 22 F/+176 F 22 F/+176 F Standard actuator form B B C C C Approvals UL, CSA UL, CSA UL, CSA UL, CSA UL, CSA Weight 0.15 kg/0.33 lb 0.15 kg/0.33 lb 0.16 kg/0.33 lb 0.16 kg/0.33 lb 0.16 kg/0.33 lb Delivery: ex-stock/built to order l/ l/ l/ l/ l/ All dimensions in mm (inch) 16 (0.63 ) 16 18 4 (0.63 ) (0.71 ) (0.15 ) 10 (0.39 ) 27 37.5 (1.48 ) 104 (4.09 ) 40.5 (1.59 ) 116 (4.57 ) Switches