Limit Switches according to EN 50041

Transcription

1 Limit Switches according to EN 5 More than safety.

2 utomation More than safety. Emil Euchner, the company s founder and inventor of the multiple limit switch, circa 98. round the world the Swabian specialists in motion sequence control for mechanical and systems engineering. EUCHNER s history began in 9 with the establishment of an engineering office by Emil Euchner. Since that time, EUCHNER has been involved in the design and development of switchgear for controlling a wide variety of motion sequences in mechanical and systems engineering. In 95, Emil Euchner founded EUCHNER + Co., a milestone in the company s history. In 95, he developed the first multiple limit switch to this day a symbol of the enterprising spirit of this familyowned company. utomation Safety ManMachine Today, our products range from electromechanical and electronic components to complex system solutions. With this wide range of products we can provide the necessary technologies to offer the right solution for special requirements regardless of whether these relate to reliable and precise positioning or to components and systems for safety engineering in the automation sector. EUCHNER products are sold through a world-wide sales network of competent partners. With our closeness to the customer and the guarantee of reliable solutions throughout the globe, we enjoy the confidence of customers all over the world. Quality, reliability, precision Quality, reliability and precision are the hallmarks of our corporate philosophy. They represent concepts and values to which we feel totally coitted. t EUCHNER, quality means that all our employees take personal responsibility for the company as a whole and, in particular, for their own field of work. This individual coitment to perfection results in products which are ideally tailored to the customers needs and the requirements of the market. fter all: our customers and their needs are the focus of all our efforts. Through efficient and effective use of resources, the promotion of personal initiative and courage in finding unusual solutions to the benefit of our customers, we ensure a high level of customer satisfaction. We familiarize ourselves with their needs, requirements and products and we learn from the experiences of our customers own customers. EUCHNER More than safety. Quality made by EUCHNER

3 Table of contents Limit switches according to EN 5 Introduction dvantages and features 5 Typical applications The limit switch in detail 7 djustment options 8 Switching elements 9 Wiring diagrams Plunger types Limit switch with lever arm Type Series NG.../NZ... cable entry Mx.5 plug connectors SR and SR M plug connector SVM5 Limit switch with adjustable lever arm 8 Type Series NG.../NZ... cable entry Mx.5 Limit switch with pivoted lever arm Type Series NG... cable entry Mx.5 Limit switch with plunger actuator Type Series NG.../NZ... cable entry Mx.5 plug connectors SR and SR M plug connector SVM5 Limit switch with spring actuator Type Series NG... cable entry Mx.5 Customized versions ccessories Spare parts and accessories 8 Technical status -9/

4 Limit switches according to EN 5 Introduction limit switches - precise, reliable and versatile EUCHNER limit switches are manufactured in accordance with the European standard EN 5. Robust construction and the use of high quality corrosion resistant materials, precision finishing and degree of protection IP 7 according to IEC 59 guarantee trouble-free and reliable operation under the toughest conditions. pprovals for type series NG... Various EUCHNER limit switch designs can be used as safety switches with certain switching elements whose NC contacts are positively opened by a rigid plunger, even if the switching element is damaged due to a broken spring or contact weld. Limit switches with direct opening action contacts are used in those cases where a guarantee of machine and/or human safety is absolutely essential. Example: End travel limit switching or an EMERGENCY STOP. pprovals for type series NZ... Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

5 Limit switches according to EN 5 limit switches offer important advantages and special features Housing and cover made of robust die-cast aluminum. ctuation heads can be adjusted x 9, lever arm can be adjusted and fixed either continuously or x 9 Switching elements with or contacts (e.g. direct opening action contacts + NO contacts), silver alloy contacts, gold flashed Cable entry M x.5 or plug connection Mechanical service life up to million operating cycles Degree of protection according to IEC 59 IP 7 High switching accuracy up to ±. Use of silicone-free lubricants Diaphragm seal and cover seal made of NR plastic (acrylonitrile rubber) to protect the switching chamber against coolants and lubricants High flexibility is guaranteed by the optional LED function display, plug connector and multiple adjustability Subject to technical modifications; no responsibility is accepted for the accuracy of this information. 5

6 Limit switches according to EN 5 Typical applications for type series NG... and NZ... limit switches Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

7 Limit switches according to EN 5 Limit switch in detail Plunger actuation The plunger actuated versions allow the user a choice of different designs. The stainless steel hardened standard plunger with telescopic action (safety limit switches with direct opening action contacts have rigid plungers) is precisely guided within the anodized die-cast alloy head, and is almost maintenance free. The approach direction of the actuator head can be easily changed by 9. Lever-arm actuation Different types of actuators may be used for lever-arm actuation. The stainless steel shaft is guided precisely through the housing. With the numerous adjusting options a high degree of flexibility is given: pproach direction adjustable by x 9 ctuator direction for lever-arm actuation adjustable by x 9 Switches to the left, or to the right, or on both sides The housing With their robust design, the die-cast alloy housings have proven themselves highly resistant to corrosion even under the toughest conditions. Either the M x.5 cable gland or the pre-wired plug connector (straight or angled) may be used for the cable. The angled plug connector can be adjusted in 7 directions around the longitudinal axis of the switch. The diaphragm seal In switches with plunger actuation, the plunger chamber and the switch chamber are separated by a diaphragm seal made of NR (acrylonitrile rubber). ecause of their outstanding technical properties, NR materials are used wherever possible for all mechanical and system engineering applications. The seal is firmly fixed to the plunger, and after each switching operation it is returned to the initial position by the plunger return spring and not by the switching element. ny build-up of pressure during plunger actuation is reliably prevented by a relief valve. The switching element is actuated by means of a metal cap pressed onto the seal. Switching point displacement (a logical consequence due to the high elasticity of the seal) is therefore completely eliminated. The edge seal In lever-arm actuated switches, an edge seal protects the actuating mechanism and the switch chamber against dirt and dust. The edge seal, which is made of NR, is resistant to all known coolants and lubricants. Cable connections efore delivery to the customer, EUCHNER limit switches according to EN 5 undergo routine check tests for compliance with degree of protection IP 7. In order to obtain this degree of protection, only high-quality metal cable glands with captive sealing rings or the pre-wired straight or angled plug connector must be used. Function display Limit switches may be fitted with an LED on request. Voltage ranges of to V C/DC, V C and V C are available. Subject to technical modifications; no responsibility is accepted for the accuracy of this information. 7

8 Limit switches according to EN 5 djustment options ctuator and approach directions Lever arm HS = steel roller WO = domed plunger RG = plastic roller H = plastic roller KO = ball plunger RS, RK, RL = steel roller The large selection of actuator heads guarantees maximum flexibility and is suitable for a variety of applications. For example, the aluminum lever arm is used for high approach speeds and generous actuating mechanism tolerances. The domed plunger with its polished-ground surface is designed for a high repeat accuracy of ±.. The ball plungers can be actuated from a number of different directions. djustment option for the actuator horizontal adjustability x 9 Having removed the stainless steel mounting screws, the actuator heads can each be adjusted horizontally by 9. Lever arm Straight actuator Vertical adjustment x 9 In the case of limit switches with no safety function, the lever arm can be adjusted continuously. However limit switches with a safety function, can be adjusted by 9. djustment option for switching direction On delivery, the lever-arm actuation is set to left and right switching. If necessary, it can be set to right switching or left switching only. Left/right right left switching switching switching (default setting) 8 Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

9 Limit switches according to EN 5 Switching elements Switching element ES 5 ) (without direct opening action) Snap-action contact element with one NC contact and one NO contact. Double gap contacts, electrically isolated switching bridge, silver alloy gold flashed contact material, screw terminals with selflifting clamp washers. Used for NG... Switching element ES 5 ) Snap-action contact element with one direct opening action contact and one NO contact. Double gap contacts, electrically isolated contact elements, silver alloy gold flashed contact material, screw terminals with selflifting clamp washers. Used for NZ... ) ) Switching element ES 58H Slow-action contact element with one direct opening action contact and one NO contact. Double gap contacts, electrically isolated H-contact bridges for currents from m to, silver alloy, gold flashed contact material, screw terminals with selflifting clamp washers. Used for NZ... ) ) Switching element ES 58H Slow-action contact element with two direct opening action contacts. Double gap contacts, electrically isolated H-contact bridges for currents from m to, silver alloy, gold flashed contact material, screw terminals with selflifting clamp washers. Used for NZ... Switching element SK H ) Slow-action contact element with three direct opening action contacts and one NO contact. Double gap contacts, electrically isolated H-contact bridges for currents from m to, silver alloy, gold flashed contact material, screw terminals with selflifting clamp washers. Used for NZ... Switching element SK H ) Slow-action contact element with two direct opening action contacts and two NO contacts. Double gap contacts, electrically isolated H-contact bridges for currents from m to, silver alloy, gold flashed contact material, screw terminals with selflifting clamp washers. Used for NZ... Switching element SK H ) Slow-action contact element with four direct opening action contacts. Double gap contacts, electrically isolated H-contact bridges for currents from m to, silver alloy, gold flashed contact material, screw terminals with selflifting clamp washers. Used for NZ... EUCHNER limit switches marked with this symbol meet the IEC requirements for safety limit switches with direct opening action contacts. Safety switching elements marked with this symbol are not available as replacement switching elements. ) Slow-action contact element The slow-action contact element has a contact element which opens and closes depending on its actuation speed. ) Snap-action contact element The snap-action contact element has a contact element which opens and closes regardless of its actuation speed. ) H-contact bridge The design properties of the H-contact bridge (H-shaped) ensure that these switching elements reliably switch currents from m (e.g. low current PLCs) to. Subject to technical modifications; no responsibility is accepted for the accuracy of this information. 9

10 Limit switches according to EN 5 Wiring diagrams Plug connector SR Contact assignment for switching elements Derating diagram Pin assignment for plug (Top view of on switch mounted connector) ES 5 / ES 5 / ES 58H ES 58H for connection cross section,5 ² 5 5 with LED display 5 with LED display 5 9 C Plug connector SR Contact assignment for switching elements Derating diagram Pin assignment for plug (Top view of on switch mounted connector) 7 5 SK H SK H 8 for connection cross section,5 ² 5 SK H C Plug connector SVM5 (M, 5-pole) Pin assignment for plug (Top view of on switch mounted connector) Contact assignment for switching elements ES 5 / ES 5 / ES 58H / ES 58H Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

11 Limit switches according to EN 5 Plunger types Plungers for limit switches are made of stainless steel and are extremely accurate. With its special surface-finished plunger guide, an extremely reliable and maintenance-free operation is given. There are two different types of actuating systems, depending on the application. For standard applications, the plunger is fitted with a telescopic device. With this system, the plunger can be depressed to the reference surface without damaging the switching element. Instead of this telescopic plunger, limit switches which have a safety function (with safety switching element) have a rigid plunger which ensures a direct opening action contact in accordance with IEC This means that in the event of mechanical failure of the switching element - e.g. failure of a contact spring or contact weld resulting from an overload, - the contact point will be reliably opened. Plunger travel The pictures show the various positions of plunger actuated by a control cam. The precise values for the relevant design are shown in the technical data. Travel ratio plunger-switching cam ll the plunger travel data shown in the technical data refers to axial actuation. The travel for radial actuation with angled switching cams is increased and this must be calculated. Pre-travel Over Travel Movement Differential Reset Travel Idle Travel Total Travel Free Position Operating Point Final Position Reset Point Plunger types Depending on the technical requirements, four different plunger types (chisel, roller, ball and domed plungers) are used. Chisel plunger Hardened and polish-ground. Repeat accuracy to ±.. Max. approach speed of m/min. With its high repeat accuracy, the domed plunger is ideal for setting reference points for moderate approach speeds. Domed plunger Hardened and polish-ground. Repeat accuracy to ±.. Max. approach speed of m/min. This plunger can be actuated from a number of different directions. For use in conjunction with safety switching elements! Roller plunger Hardened roller. Repeat accuracy to ±.. Max. approach speed of 5 m/min. The roller plunger is suitable for higher approach speeds. For very high approach speeds and long travel distances, roller plungers with a protected ball bearing can be offered on request. Extended roller plunger Robust roller plunger for moderate approach speeds. all plunger Hardened ball. Repeat accuracy to ±.. Max. approach speed of m/min. This plunger can be actuated from a number of different directions. It must not be used in conjunction with safety switching elements! Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

12 Limit switches according to EN 5 Limit switch type series NG.../NZ... Roller lever arm H(plastic roller) HS (steel roller) Cable entry M x.5 NG... NZ... Dimension drawing 5 + max. Switching elements ES 5 Snap-action contact element NC contact + NO contact ES 5 Snap-action contact element direct opening action contact + NO contact ES 58H Slow-action contact element direct opening action contact + NO contact ES 58H Slow-action contact element direct opening action contacts SK H Slow-action contact element direct opening action contacts + NO contact SK H Slow-action contact element direct opening action contacts + NO contact (for further details see page 9) Mx,5 LED function display red function display LED is available for the following voltage ranges: - V C/DC L V C ±5% L V C ±5% L djustment options Horizontal and vertical x 9 (see page 8). Switching direction Switches to the right, left and to both sides (see page 8). Switch travel diagrams Contacts Switching point open End position closed C Reset point C C ES5 ES5 ES58H If damaged or worn, safety switches should be replaced as a unit. Notes on installation for limit switches with safety switching elements To obtain the direct opening travel, the switching cam gap shown in the dimension 5 + must be complied with. ctuation elements such as cam approach guides must be firmly mounted in accordance EN 88, i.e. riveted, welded or otherwise secured against becoming loose. ES58H SKH SKH Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

13 Limit switches according to EN 5 Technical data Parameters Value Unit Housing material nodized die-cast alloy Degree of protection according to IEC 59 IP 7 Installation position Optional Mechanical service life x switching cycles mbient temperature -5 to +8 C Weight pprox.. kg ctuator Roller lever arm Roller material Plastic (H) Steel (HS) pproach speed, max. ) m/min pproach speed, min.. m/min Repeat accuracy ±.5 Direct opening action contact according to IEC 97-5-, appendix K See symbol in switch travel diagram ctuating force, min. 5 N Switching elements ES 5 ES 58H ES 58H NC + NO NC + NO NC ES 5 SK H SK H NC + NO NC + NO NC + NO Switching principle Snap-action Slow-action contact element contact element with H-contact bridge Contact material Silver alloy, gold flashed Contact closing time < ms Contact bounce time < ms Rated impulse withstand voltage Uimp.5 kv Rated insulation voltage Ui 5 V Utilization category according to IEC C Ie Ue V - C5 Ie Ue V Ie Ue V DC Ie Ue V Ie Ue V Switching current min. at m Switching voltage V DC Conventional thermal current Ith Short-circuit protection according to IEC 9- (control circuit fuse) / gg Type of connection Screw terminal ) Conductor cross-section, max. x.5 ² ) The approach speed specified applies to an approach angle of. ) For wiring diagram see page 9. Ordering table Type Series Roller Switching Element Function Display None L L L NG...-M on request H NZ...-M Plastic roller NG...-M on request HS NZ...-M Steel roller Ordering example: Limit switch without safety function NG, cable entry, roller lever arm with steel roller HS, snap-action contact element 5, function display L - V, metric thread M x.5 M NGHS-5L-M Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

14 Limit switches according to EN 5 Limit switch type series NG.../NZ... NZ... Roller lever arm H(plastic roller) HS (steel roller) Plug connectors SR and SR Dimension drawing 5 + max. Switching elements ES 5 Snap-action contact element NC contact + NO contact ES 5 Snap-action contact element direct opening action contact + NO contact ES 58H Slow-action contact element direct opening action contact + NO contact ES 58H Slow-action contact element direct opening action contacts SK H Slow-action contact element direct opening action contacts + NO contact SK H Slow-action contact element direct opening action contacts + NO contact (for further details see page 9) inserted inserted inserted LED function display red function display LED is available for the following voltage ranges: - V C/DC (as standard) L V C ±5% (on request) L V C ±5% (on request) L djustment options Horizontal and vertical x 9 (see page 8). SRWF SREF/SREF SRWF Switching direction Switches to the right, left and to both sides (see page 8). Switch travel diagrams Contacts Switching point open End position closed C Reset point C C ES5 ES5 ES58H If damaged or worn, safety switches should be replaced as a unit. Notes on installation for limit switches with safety switching elements To obtain the direct opening travel, the switching cam gap shown in the dimension 5 + must be complied with. ctuation elements such as cam approach guides must be firmly mounted in accordance EN 88, i.e. riveted, welded or otherwise secured against becoming loose. ES58H SKH SKH Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

15 Limit switches according to EN 5 Technical data Parameters Value Unit Housing material nodized die-cast alloy Degree of protection according to IEC 59 IP 5 Installation position Optional Mechanical service life x switching cycles mbient temperature -5 to +8 C Weight pprox.. kg ctuator Roller lever arm Roller material Plastic (H) Steel (HS) pproach speed, max. ) m/min pproach speed, min.. m/min Repeat accuracy ±.5 Direct opening action contact according to IEC 97-5-, appendix K See symbol in switch travel diagram ctuating force, min. 5 N Switching elements ES 5 ES 58H ES 58H NC + NO NC + NO NC ES 5 SK H SK H NC + NO NC + NO NC + NO Switching principle Snap-action Slow-action contact element contact element with H-contact bridge Contact material Silver alloy, gold flashed Contact closing time < ms Contact bounce time < ms Rated impulse withstand voltage Uimp.5 kv Switching current min. at m Switching voltage V DC Conventional thermal current Ith Short-circuit protection according to IEC 9- (control circuit fuse) gg Type of connection Plug connector to DIN 5 ) Rated insulation voltage Ui with plug connector SR 5 V with plug connector SR 5 Rated impulse withstand voltage Uimp with plug connector SR.5 kv with plug connector SR.5 Utilization category according to IEC with plug connector SR C5 Ie Ue V Ie Ue V DC Ie Ue V Ie Ue V with plug connector SR C5 Ie Ue 5 V DC Ie Ue V ) The approach speed specified applies to an approach angle of. ) For wiring and derating diagram see page. Ordering table Type Series Roller Switching Element Plug Connector / Function Display SR SR SR without LED with L without LED NG H NZ... Plastic roller NG NZ... HS Steel roller Ordering example: Limit switch without safety function NG, plug connector, roller lever arm with steel roller HS, snap-action contact element 5, function display L - V NGHS-5L 89 9 Subject to technical modifications; no responsibility is accepted for the accuracy of this information. 5

16 Limit switches according to EN 5 Limit switch type series NG.../NZ... NZ... Roller lever arm H(plastic roller) HS(steel roller) M/SVM5 plug connector Dimension drawing 5 + Guide lug aligned max. 5 5 ø8 Switching elements ES 5 Snap-action contact element NC contact + NO contact ES 5 Snap-action contact element direct opening action contact + NO contact ES 58H Slow-action contact element direct opening action contact + NO contact ES 58H Slow-action contact element direct opening action contacts (for further details see page 9) 7 ±, + ±, 7, 5, 5, LED function display vailable on request djustment options Horizontal and vertical x 9 (see page 8). Switching direction Switches to the right, left and to both sides (see page 8).,5 ngled plug connector: Plug connector adjustable to a max. of 7 Default setting: cable exit to the right. Switch travel diagrams Contacts Switching point open End position closed C Reset point C C ES5 ES5 ES58H If damaged or worn, safety switches should be replaced as a unit. Notes on installation for limit switches with safety switching elements To obtain the direct opening travel, the switching cam gap shown in the dimension 5 + must be complied with. ctuation elements such as cam approach guides must be firmly mounted in accordance EN 88, i.e. riveted, welded or otherwise secured against becoming loose. ES58H Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

17 Limit switches according to EN 5 Technical data Parameters Value Unit Housing material nodized die-cast alloy Degree of protection according to IEC 59 IP 7 Installation position Optional Mechanical service life x switching cycles mbient temperature -5 to +8 C Weight pprox.. kg ctuator Roller lever arm Roller material Plastic (H) Steel (HS) pproach speed, max. ) m/min pproach speed, min.. m/min Repeat accuracy ±.5 Direct opening action contact according to IEC 97-5-, appendix K See symbol in switch travel diagram ctuating force, min. 5 N Switching elements ES 5 ES 58H ES 58H NC + NO NC + NO NC ES 5 NC + NO Switching principle Snap-action Slow-action contact element contact element with H-contact bridge Contact material Silver alloy, gold flashed Contact closing time < ms Contact bounce time < ms Rated impulse withstand voltage Uimp. kv Rated insulation voltage Ui 5 V Utilization category according to IEC with SVM5 plug connector C5 Ie Ue V Ie Ue V DC Ie Ue V Ie Ue V Switching current min. at m Switching voltage V DC Conventional thermal current Ith Short-circuit protection according to IEC 9- (control circuit fuse) gg Type of connection M plug connector ) ) The approach speed specified applies to an approach angle of. ) For wiring diagram see page. Ordering table Type Series Roller Switching Element Plug Connector SVM5 NG H NZ... Plastic roller NG HS NZ... Steel roller Ordering example: Limit switch without safety function NG, plug connector, roller lever arm with steel roller HS, snap-action contact element 5, M plug with PE connection SVM5 NGHS-5SVM5 9 8 Subject to technical modifications; no responsibility is accepted for the accuracy of this information. 7

18 Limit switches according to EN 5 Limit switch type series NG.../NZ... djustable roller lever arm V (plastic) / P (plastic roller) VS (steel roller) / PS (steel roller) Cable entry M x.5 (plug connector on request) NZ... * * pproval applied Dimension drawing max. 7 ±, 7, 5, , ±, 59 Switching elements ES 5 Snap-action contact element NC contact + NO contact ES 5 Snap-action contact element direct opening action contact + NO contact ES 58H Slow-action contact element direct opening action contact + NO contact ES 58H Slow-action contact element direct opening action contacts SK H Slow-action contact element direct opening action contact + NO contact SK H Slow-action contact element direct opening action contact + NO contact (for further details see page 9) + NG... NZ... Mx,5 LED function display red function display LED is available for the following voltage ranges: - V C/DC (as standard) L V C ±5% (on request) L V C ±5% (on request) L djustment options Horizontal and vertical x 9 (see page 8). Switching direction Switches to the right, left and to both sides (see page 8). Switch travel diagrams Contacts Switching point open End position closed C Reset point If damaged or worn, safety switches should be replaced as a unit. C 5 +5 ES5 C 5 +5 ES ES58H Notes on installation for limit switches with safety switching elements To obtain the direct opening travel, the switching cam must actuate the lever arm to an angle of ctuation elements such as cam approach guides must be firmly mounted in accordance EN 88, i.e. riveted, welded or otherwise secured against becoming loose. ES58H SKH SKH 8 Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

19 Limit switches according to EN 5 Technical data Parameters Value Unit Housing material nodized die-cast alloy Degree of protection according to IEC 59 IP 7 Installation position Optional Mechanical service life x switching cycles mbient temperature -5 to +8 C Weight pprox.. kg ctuator djustable Roller lever arm Roller material Plastic (V) Plastic (P) Steel (VS) Steel (PS) pproach speed, max. ) m/min pproach speed, min..5 m/min Direct opening action contact according to IEC 97-5-, appendix K See symbol in switch travel diagram ctuating force, min. 5 N Switching elements ES 5 ES 58H ES 58H NC + NO NC + NO NC ES 5 SK H SK H NC + NO NC + NO NC + NO Switching principle Snap-action Slow-action contact element contact bridge contact element with H-contact bridge Contact material Silver alloy, gold flashed Contact closing time < ms Contact bounce time < ms Rated impulse withstand voltage Uimp.5 kv Rated insulation voltage Ui 5 V Utilization category according to IEC C Ie Ue V - C5 Ie Ue V Ie Ue V DC Ie Ue V Ie Ue V Switching current min. at m Switching voltage V DC Conventional thermal current Ith Short-circuit protection according to IEC 9- (control circuit fuse) / gg Type of connection Screw terminal ) Conductor cross-section, max. x.5 ² ) The approach speed specified applies to an approach angle of. ) For wiring diagram see page 9. Ordering table Type Series Roller Switching Element Function Display None L NG...-M V Plastic roller VS Steel roller on request P Plastic roller NZ...-M PS Steel roller Ordering example: Limit switch with safety function NZ, cable entry, adjustable roller lever arm with plastic roller P, Snap-action contact element 5, metric thread M x.5 M NZP-5-M 88 Subject to technical modifications; no responsibility is accepted for the accuracy of this information. 9

20 Limit switches according to EN 5 Limit switch type series NG... Pivoted lever arm S (plastic rod) SM (aluminum rod) Cable entry M x.5 (plug connector on request) Dimension drawing ± 5 Switching elements ES 5 Snap-action contact element NC contact + NO contact (for further details see page 9) 7 75 LED function display red function display LED is available for the following voltage ranges: - V C/DC (as standard) L V C ±5% (on request) L V C ±5% (on request) L djustment options Horizontal and vertical x 9 (see page 8). Switching direction Switches to the right, left and to both sides (see page 8). 7, 7 ±, 5, ±, + 5, Mx,5 Switch travel diagrams Contacts Switching point open End position closed C Reset point C Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

21 Limit switches according to EN 5 Technical data Parameters Value Unit Housing material nodized die-cast alloy Degree of protection according to IEC 59 IP 7 Installation position Optional Mechanical service life x switching cycles mbient temperature -5 to +8 C Weight pprox.. kg ctuator Pivoted lever arm Roller material Plastic (S) luminum (SM) pproach speed, max. m/min pproach speed, min..5 m/min Repeat accuracy ± ctuating force, min. 5 N Switching elements ES 5 NC + NO Switching principle Snap-action contact element Contact material Silver alloy, gold flashed Contact closing time < ms Contact bounce time < ms Rated impulse withstand voltage Uimp.5 kv Rated insulation voltage Ui 5 V Utilization category according to IEC C Ie Ue V C5 Ie Ue V DC Ie Ue V Switching current min. at m Switching voltage V DC Conventional thermal current Ith Short-circuit protection according to IEC 9- (control circuit fuse) / gg Type of connection Screw terminal ) Conductor cross-section, max. x.5 ² ) For wiring diagram see page 9. Ordering table Type Series Roller Switching Element Function Display None L NG...-M S plastic rod -5 SM luminum rod Ordering example: Limit switch without safety function NG, cable entry, pivoted arm lever with plastic rod S, snap-action contact element 5, function display L - V, metric thread M x.5 M NGS-5L-M Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

22 Limit switches according to EN 5 Limit switch type series NG.../NZ... Plunger actuator WO (Domed plunger) / KO (all plunger) DO (Chisel plunger) / RK (Roller plunger with small steel roller) Cable entry M x.5 NG... NZ... Dimension drawing + 97 max. 7 ±, 5, R 5, ±, + Direct opening + 7, Initial position 7 ± Mx,5 To obtain the direct opening travel, the switching cam gap shown in the dimension + must be complied with. ctuation elements such as cam approach guides must be firmly mounted in accordance EN 88, i.e. riveted, welded or otherwise secured against becoming loose. Switching elements ES 5 Snap-action contact element NC contact + NO contact ES 5 Snap-action contact element direct opening action contact + NO contact ES 58H Slow-action contact element direct opening action contact + NO contact ES 58H Slow-action contact element direct opening action contacts SK H Slow-action contact element direct opening action contacts + NO contact SK H Slow-action contact element direct opening action contacts + NO contact (for further details see page 9) LED function display red function display LED is available for the following voltage ranges: - V C/DC (as standard) L V C ±5% (on request) L V C ±5% (on request) L djustment options Horizontal x 9 (see page 8). Switch travel diagrams Contacts open closed ES5 ES5 ES58H ES58H SKH SKH WO Domed plunger Type (EN 5) DO Chisel plunger 5,5 ES5 ES5 ES58H ES58H SKH SKH KO all plunger RK Roller plunger small 5,5 Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

23 Limit switches according to EN 5 Technical data Parameters Value Unit Housing material nodized die-cast alloy Degree of protection according to IEC 59 IP 7 Installation position Optional Mechanical service life x switching cycles mbient temperature -5 to +8 C Weight pprox.. kg ctuator Domed plunger Chisel plunger all plunger Roller plunger (WO) (DO) (KO) Small (RK) pproach speed, max. ) 5 m/min pproach speed, min.. m/min Repeat accuracy ) ±.. Direct opening action contact according to IEC 97-5-, appendix K See symbol in switch travel diagram ctuating force, min. 5 N Switching elements ES 5 ES 58H ES 58H NC + NO NC + NO NC ES 5 SK H SK H NC + NO NC + NO NC + NO Switching principle Snap-action Slow-action contact element contact element with H-contact bridge Contact material Silver alloy, gold flashed Contact closing time < ms Contact bounce time < ms Rated impulse withstand voltage Uimp.5 kv Rated insulation voltage Ui 5 V Utilization category according to IEC C Ie Ue V - C5 Ie Ue V Ie Ue V DC Ie Ue V Ie Ue V Switching current min. at m Switching voltage V DC Conventional thermal current Ith Short-circuit protection according to IEC 9- (control circuit fuse) / gg Type of connection Screw terminal ) Conductor cross-section, max. x.5 ² ) The approach speed specified applies in conjunction with EUCHNER control cams is in accordance with DIN 99. ) For wiring diagram see page 9. ) The reproducible repeat accuracy refers to the plunger s axial travel, after a run-in of approx. switching cycles Ordering table Type Series Roller Switching Element Function Display None L NG...-M on request NZ...-M WO Domed plunger NG...-M NZ...-M DO Chisel plunger on request NG...-M NZ...-M RK Roller plunger small on request NG...-M KO all plunger on request Ordering example: Limit switch without safety function NZ, cable entry, domed plunger WO, snap-action contact element 5, function display L - V, metric thread M x.5 M NZWO-5L-M Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

24 Limit switches according to EN 5 Limit switch type series NG.../NZ... NZ... Plunger actuator WO(Domed plunger) / KO (all plunger) DO (Chisel plunger) / RK (Roller plunger with small steel roller) Plug connectors SR and SR Dimension drawing max. ±, 8x + 5, ±, Direct opening 5 + inserted 5, 7, Initial position 7 ± 75 inserted Mx, , inserted Switching elements ES 5 Snap-action contact element NC contact + NO contact ES 5 Snap-action contact element direct opening action contact + NO contact ES 58H Slow-action contact element direct opening action contact + NO contact ES 58H Slow-action contact element direct opening action contacts SK H Slow-action contact element direct opening action contacts + NO contact SK H Slow-action contact element direct opening action contacts + NO contact (for further details see page 9) LED function display red function display LED is available for the following voltage ranges: - V C/DC (as standard) L V C ±5% (on request) L V C ±5% (on request) L 55,5 SRWF 8 SREF/SREF SRWF djustment options Horizontal x 9 (see page 8). Switch travel diagrams To obtain the direct opening travel the switching cam gap shown in the dimension + must be complied with. ctuation elements such as cam approach guides must be firmly mounted in accordance EN 88, i.e. riveted, welded or otherwise secured against becoming loose. Contacts open closed ES5 ES5 ES58H ES58H SKH SKH ,5 5 WO Domed plunger Type (EN 5) DO Chisel plunger ES5 ES5 ES58H ES58H SKH SKH ,5 5 KO all plunger RK Roller plunger small Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

25 Limit switches according to EN 5 Technical data Parameters Value Unit Housing material nodized die-cast alloy Degree of protection according to IEC 59 IP 5 Installation position Optional Mechanical service life x switching cycles mbient temperature -5 to +8 C Weight pprox.. kg ctuator Domed plunger Chisel plunger all plunger Roller plunger (WO) (DO) (KO) Small (RK) pproach speed, max. ) 5 m/min pproach speed, min.. m/min Repeat accuracy ) ±.. Direct opening action contact according to IEC 97-5-, appendix K See symbol in switch travel diagram ctuating force, min. 5 N Switching elements ES 5 ES 58H ES 58H NC + NO NC + NO NC ES 5 SK H SK H NC + NO NC + NO NC + NO Switching principle Snap-action Slow-action contact element contact element with H-contact bridge Contact material Silver alloy, gold flashed Contact closing time < ms Contact bounce time < ms Rated impulse withstand voltage Uimp.5 kv Switching current min. at m Switching voltage V DC Conventional thermal current Ith Short-circuit protection according to IEC 9- (control circuit fuse) gg Type of connection Plug connector to DIN 5 ) Rated insulation voltage Ui with plug connector SR 5 with plug connector SR 5 V Rated impulse withstand voltage Uimp with plug connector SR.5 kv with plug connector SR.5 Utilization category according to IEC with plug connector SR C5 Ie Ue V Ie Ue V DC Ie Ue V Ie Ue V with plug connector SR C5 Ie Ue 5 V DC Ie Ue V ) The approach speed specified applies in conjunction with EUCHNER control cams is in accordance with DIN 99. ) For wiring and derating diagram see page. ) The reproducible repeat accuracy refers to the plunger s axial travel, after a run-in of approx. switching cycles Ordering table Type Series Roller Switching Element Function Display None L NG on request NZ... WO Domed plunger NG DO NZ... Chisel plunger on request NG on request NZ... RK Roller plunger small on request NG... KO all plunger -5 9 on request Subject to technical modifications; no responsibility is accepted for the accuracy of this information. 5

26 Limit switches according to EN 5 Limit switch type series NG.../NZ... NZ... Plunger actuator WO(Domed plunger) / KO (all plunger) DO (Chisel plunger) / RK (Roller plunger with small steel roller) M/SVM5 plug connector Dimension drawing Guide lug aligned max. 5 8x Direct opening Initial position Switching elements ES 5 Snap-action contact element NC contact + NO contact ES 5 Snap-action contact element direct opening action contact + NO contact ES 58H Slow-action contact element direct opening action contact + NO contact ES 58H Slow-action contact element direct opening action contacts (for further details see page 9) ± LED function display red function display LED is available for the following voltage ranges: - V C/DC (as standard) L V C ±5% (on request) L V C ±5% (on request) L 7 ±, ±, 5, 5, Mx,5 djustment options Horizontal x 9 (see page 8).,5 7, ngled plug connector: Plug connector adjustable to a max. of 7 Default setting: cable exit to the right. To obtain the direct opening travel the switching cam gap shown in the dimension + must be complied with. ctuation elements such as cam approach guides must be firmly mounted in accordance EN 88, i.e. riveted, welded or otherwise secured against becoming loose. Switch travel diagrams ES5 ES5 ES58H ES58H Contacts open closed WO Domed plunger Type (EN 5) DO Chisel plunger ES5 ES5 ES58H ES58H KO all plunger RK Roller plunger small 5 Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

27 Limit switches according to EN 5 Technical data Parameters Value Unit Housing material nodized die-cast alloy Degree of protection according to IEC 59 IP 7 Installation position Optional Mechanical service life x switching cycles mbient temperature -5 to +8 C Weight pprox.. kg ctuator Domed plunger Chisel plunger all plunger Roller plunger (WO) (DO) (KO) Small (RK) pproach speed, max. ) 5 m/min pproach speed, min.. m/min Repeat accuracy ) ±.. Direct opening action contact according to IEC 97-5-, appendix K See symbol in switch travel diagram ctuating force, min. 5 N Switching elements ES 5 ES 58H ES 58H NC + NO NC + NO NC ES 5 NC + NO Switching principle Snap-action Slow-action contact element contact element with H-contact bridge Contact material Silver alloy, gold flashed Contact closing time < ms Contact bounce time < ms Rated impulse withstand voltage Uimp. kv Rated insulation voltage Ui 5 V Utilization category according to IEC with SVM5 plug connector C5 Ie Ue V Ie Ue V DC Ie Ue V Ie Ue V Switching current min. at m Switching voltage V DC Conventional thermal current Ith Short-circuit protection according to IEC 9- (control circuit fuse) gg Type of connection M plug connector ) ) The approach speed specified applies in conjunction with EUCHNER control cams is in accordance with DIN 99. ) For wiring diagram see page. ) The reproducible repeat accuracy refers to the plunger s axial travel, after a run-in of approx. switching cycles Ordering table Type Series Roller Switching Element Plug Connector SVM5 NG WO NZ... Domed plunger NG DO NZ... Chisel plunger NG RK NZ... Roller plunger small NG... KO all plunger Ordering example: Limit switch without safety function NG, plug connector, small roller plunger with steel roller RK, snap-action contact element 5, M plug with PE connection SVM5 NGRK-5SVM5 89 Subject to technical modifications; no responsibility is accepted for the accuracy of this information. 7

28 Limit switches according to EN 5 Limit switch type series NG.../NZ... Plunger actuator RG (Roller plunger - plastic roller) RS (Roller plunger - steel roller) RL (Extended roller plunger) Cable entry M x.5 NG... NZ... Dimension drawing + max. Direct opening Initial position Switching elements ES 5 Snap-action contact element NC contact + NO contact ES 5 Snap-action contact element direct opening action contact + NO contact ES 58H Slow-action contact element direct opening action contact + NO contact ES 58H Slow-action contact element direct opening action contacts SK H Slow-action contact element direct opening action contacts + NO contact SK H Slow-action contact element direct opening action contacts + NO contact (for further details see page 9) LED function display red function display LED is available for the following voltage ranges: - V C/DC (as standard) L V C ±5% (on request) L V C ±5% (on request) L Mx,5 djustment options Horizontal x 9 (see page 8). If damaged or worn, safety switches should be replaced as a unit. Switch travel diagrams Notes on installation for limit switches with safety switching elements To obtain the direct opening travel, the switching cam gap shown in the dimension + must be complied with. ctuation elements such as cam approach guides must be firmly mounted in accordance EN 88, i.e. riveted, welded or otherwise secured against becoming loose. Contacts open closed ES5 ES5 ES58H ES58H SKH SKH ,5 RG Plastic roller RS Steel roller RL Roller plunger plunger 8 Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

29 Limit switches according to EN 5 Technical data Parameters Value Unit Housing material nodized die-cast alloy Degree of protection according to IEC 59 IP 7 Installation position Optional Mechanical service life x switching cycles mbient temperature -5 to +8 C Weight pprox.. kg ctuator Roller plunger Roller plunger Roller plunger Plastic roller (RG) Steel (RS) Extended (RL) pproach speed, max. ) m/min pproach speed, min.. m/min Repeat accuracy ) ±. Direct opening action contact according to IEC 97-5-, appendix K See symbol in switch travel diagram ctuating force, min. 5 N Switching elements ES 5 ES 58H ES 58H NC + NO NC + NO NC ES 5 SK H SK H NC + NO NC + NO NC + NO Switching principle Snap-action Slow-action contact element contact element with H-contact bridge Contact material Silver alloy, gold flashed Contact closing time < ms Contact bounce time < ms Rated impulse withstand voltage Uimp.5 kv Rated insulation voltage Ui 5 V Utilization category according to IEC C Ie Ue V - C5 Ie Ue V Ie Ue V DC Ie Ue V Ie Ue V Switching current min. at m Switching voltage V DC Conventional thermal current Ith Short-circuit protection according to IEC 9- (control circuit fuse) / gg Type of connection Screw terminal ) Conductor cross-section, max. x.5 ² ) The approach speed specified applies in conjunction with EUCHNER control cams is in accordance with DIN 99. ) For wiring diagram see page 9. ) The reproducible repeat accuracy refers to the plunger s axial travel, after a run-in of approx. switching cycles Ordering table Type Series Roller Switching Element Function Display None L NG...-M NZ...-M RG Roller plunger Plastic roller NG...-M NZ...-M RS Roller plunger Steel roller NG...-M NZ...-M RL Extended roller plunger Ordering example: Limit switch with safety function NZ, cable entry, Roller plunger with plastic roller RG, snap-action contact element 5, function display L - V, metric thread M x.5 M NZRG-5L-M 89 5 Subject to technical modifications; no responsibility is accepted for the accuracy of this information. 9

30 Limit switches according to EN 5 Limit switch type series NG.../NZ... NZ... Plunger actuator RG (Roller plunger - plastic roller) RS (Roller plunger - steel roller) RL (Extended roller plunger) Plug connectors SR and SR Dimension drawing ±, max. R Direct opening Initial position + 5 ± + 5, 5, ±, 7, ø Switching elements ES 5 Snap-action contact element NC contact + NO contact ES 5 Snap-action contact element direct opening action contact + NO contact ES 58H Slow-action contact element direct opening action contact + NO contact ES 58H Slow-action contact element direct opening action contacts SK H Slow-action contact element direct opening action contacts + NO contact SK H Slow-action contact element direct opening action contacts + NO contact (for further details see page 9) LED function display red function display LED is available for the following voltage ranges: - V C/DC (as standard) L V C ±5% (on request) L V C ±5% (on request) L 5, djustment options Horizontal x 9 (see page 8). 55,5 8 If damaged or worn, safety switches should be replaced as a unit. SRWF Switch travel diagrams SREF/SREF SRWF Notes on installation for limit switches with safety switching elements To obtain the direct opening travel, the switching cam gap shown in the dimension + must be complied with. ctuation elements such as cam approach guides must be firmly mounted in accordance EN 88, i.e. riveted, welded or otherwise secured against becoming loose. Contacts open closed ES5 ES5 ES58H ES58H SKH SKH ,5 RG Plastic roller RS Steel roller RL Roller plunger plunger Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

31 Limit switches according to EN 5 Technical data Parameters Value Unit Housing material nodized die-cast alloy Degree of protection according to IEC 59 IP 5 Installation position Optional Mechanical service life x switching cycles mbient temperature -5 to +8 C Weight pprox.. kg ctuator Roller plunger Roller plunger Roller plunger Plastic roller (RG) Steel (RS) Extended (RL) pproach speed, max. ) m/min pproach speed, min.. m/min Repeat accuracy ) ±. Direct opening action contact according to IEC 97-5-, appendix K See symbol in switch travel diagram ctuating force, min. 5 N Switching elements ES 5 ES 58H ES 58H NC + NO NC + NO NC ES 5 SK H SK H NC + NO NC + NO NC + NO Switching principle Snap-action Slow-action contact element contact element with H-contact bridge Contact material Silver alloy, gold flashed Contact closing time < ms Contact bounce time < ms Rated impulse withstand voltage Uimp.5.5 kv Switching current min. at m Switching voltage V DC Conventional thermal current Ith Short-circuit protection according to IEC 9- (control circuit fuse) gg Type of connection Plug connector to DIN 5 ) Rated insulation voltage Ui with plug connector SR 5 with plug connector SR 5 V Rated impulse withstand voltage Uimp with plug connector SR.5 kv with plug connector SR.5 Utilization category according to IEC with plug connector SR C5 Ie Ue V Ie Ue V DC Ie Ue V Ie Ue V with plug connector SR C5 Ie Ue 5 V Ie Ue 5 V DC Ie Ue V Ie Ue V ) The approach speed specified applies in conjunction with EUCHNER control cams is in accordance with DIN 99. ) For wiring and derating diagram see page. ) The reproducible repeat accuracy refers to the plunger s axial travel, after a run-in of approx. switching cycles Ordering table Type Series Roller Switching Element Function Display None L NG NZ... RG Roller plunger Plastic roller NG on request NZ... RS Roller plunger Steel roller NG NZ... RL Extended roller plunger Subject to technical modifications; no responsibility is accepted for the accuracy of this information.