Machine Safety. Products

January 23 Vol. 2, Ref. No. [1263] -1 Machine Safety Products Contents Description Page............................................. -2 Key Interlock Switches DIN Models.............................. -9 Order the Sensing Solutions Product Guide PG8311E for complete information on these and more, including: Key Interlock Switches NEMA Standard Models For the most current information on all Cutler-Hammer Limit Switches and Sensors by Eaton Corporation, visit www.cutler-hammer.eaton.com/sensors Family

-2 January 23 Product Description Vol. 2, Ref. No. [1264] Contents Description Page Product Description....... -2 Features................ -2 Operation............... -2 Standards and Certifications........... -3 Technical Data........... -3 Accessories............. -4 Dimensions............. -5 Product Selection........ -7 Features Positive opening N.C. contacts have long operational life 1,, switching actions Galvanically isolated contacts operation on emergency stop models ensure machine will not restart until the switch is manually reset Metal housings provide long life in rough industrial environments Long cable span lengths reduce the number of switches required per application A full selection of installation hardware is available Operation cable movement. These include using pulleys in place of eyebolt supports, and minimizing or eliminating turns in the cable (the ideal run has no turns). Switch Construction and Operation Cable-Pull switches come in three distinct types: Basic Switches These switches are merely momentary actuated switches. They are not suitable for use in safety applications. The contact switching mode is referred to as break before make, which means the first set of contacts break before the second set makes. Break before make contact configurations are shown in Figure -1. Reliable for ON/OFF and Emergency Stop Machine Control Product Description Eaton s Cutler-Hammer Cable-Pull Switches are designed as emergency stop devices that operate when the attached cable is pulled or pushed. Also referred to as rope-pull switches, this family offers a variety of switch sizes to fit easily into any application. Both latching and non-latching switches are available to meet your specific requirements. switches provide a palm button or pull-chain reset depending upon the model selected. Units provide cable lengths, under ideal conditions, from 2 feet (6m) in one direction suitable for smaller machines, up to 245 feet (75m) in two directions 49 feet (15m) total. These long range types are ideal for conveyor installation. The Cable-Pull System A Cable-Pull System, also referred to as Rope-Pull, is designed to provide an emergency stop function as part of a larger safety control circuit. A typical system, shown in Figure -2, consists of a safety rated switch, a cable, a turnbuckle and often times a spring and cable supports. The cable is installed horizontally along a zone of a machine where a point of possible hazard exists. The cable is installed with tension on it so that the switch has the ability to monitor when the cable is slack or broken, in addition to monitoring when the cable is pulled. Also, for safety use, the switch must latch in the emergency stop position and be manually reset. Careful consideration should be taken when designing a system so that the switch is easily pulled at critical sections of the cable run. The nature of the system is such that there will be certain zones of the cable run where the sensor may or may not operate when the cable is pulled (unknown action). Examples of these zones are very near the ends of the cable or near eyebolt supports. Steps should be taken to minimize the friction of the 21-22 N 5.4 (1).12 (3) Figure -1. Non-overlapping Contact Actuation Points.2 This non-overlapping configuration does not allow for monitoring the cable status. This switch is used where the cable is not installed under tension. As this switch is not recommended for safety applications, Eaton s Cutler-Hammer does not include it in its offering. Overlapping, Non-latching Switches Unlike the basic switch, overlapping contact switches carry contacts that make before break. These contacts allow cable status monitoring. As seen in Figure -3, when the contacts are wired in series, indication of cable status can be determined electrically. The risk in using this non-latching switch is that if the cable is pulled, then released, the action that was stopped by pulling the cable could possibly be restarted. 7 Eye Bolt and Nut Eye Bolt 4-6 es (1-15 mm) Thimble Cable Tightening Turnbuckle Cable Clamp Switch Figure -2. Typical Cable-Pull System

January 23 Vol. 2, Ref. No. [1265] Standards and Certifications -3 in the normal stand-by mode. Normally open contacts are held closed to monitor cable slack status. N.O. N.C. N 5.46 (11.8).43 (11) Latch:.49 (12.5). (13) 18 in the cable-pulled mode. Normally closed contacts are opened. in the cable-broken mode. Normally open contacts return to the normally open state. Figure -3. Contact Position Based on Cable Status N.O. N.O. N.C. N.C. Safety Rated Switches This is the only type of switch recommended for safety applications. In addition to the features mentioned above, these switches also latch when the contacts are actuated. This requires a deliberate action to reset the contacts and thus restart the machine where the hazard existed. Reset can happen by pressing or pulling an operator located on the switch or by requiring a key to release the switch (once an emergency stop has occurred, manual, deliberate reset is required). All cable-pull switches offer positive-mode operated galvanically isolated contacts as required by IEC 947-5-1. In applications where the cable is set up under tension, the normally open contacts are held closed while the normally closed contacts remain closed. When the cable goes slack, the normally open contacts (held closed) will open. When the cable is pulled, both sets of contacts open. This is described in Figure -3. Wiring the contacts in series will give indication of cable actuation in either case. In the case of overlapping contacts, the travel of overlap is described in the contact configuration drawing (see Figure -4). It is important that the cable travel under normal operating conditions does not exceed this distance to avoid nuisance tripping. Expansion of the cable under varying ambient temperatures can also be a cause of nuisance tripping. Cable Considerations The cable is the actual interface with the user, it is plastic coated and is typically less than.16 es (4 mm) in diameter. The cable is installed between the switch and the support at the opposing end. It is important that the support for the cable be sturdy enough to handle the force required to operate the switch. Figure -4. Overlapping Contact Configuration Overlapping gap is measured as 9 mm Temperature effects on the cable are important to note when configuring a system that has long cable runs greater than 79 es (18m). The expansion and contraction properties of the cable are referred to as its Coefficient of Linear Expansion (K). Coefficient of Linear Expansion (K) = 6.89 x 1-6 es per degree F per (.12 mm per degree C per meter) Since contact overlap is critical in the switch operation, the expansion of the cable can be a source of nuisance tripping in installations where the ambient temperature changes greatly. Another consideration of the cable is that when pulled with great force, the cable can initially expand or stretch and affect system setup. It is usually recommended that the cable be forcefully pulled prior to tuning the cable tension with the turnbuckle. This will expose areas in the system that will initially stretch or expand. Adjustments can then be made to take up the added slack. Standards and Certifications UL Listed CSA Certified IEC 947-5-1 AC 15/DC 13 EN 418 DIN VDE 66 T2 Direct opening N.C. contacts Technical Data E48 are only intended for operation as a component of an overall safety control circuit. Table -1. Specifications Mechanical Life Reset Method Protection Class Switching Control Wire Size Utilization Category Temperature Range Housing Materials 1 million cycles Pushbutton (for models ending in B ); Pull ring (for models ending in R or RC ) NEMA 1, 2, 3, 4, 12 (IP65), 2N.O./1N.C. or 2N.O./2N.C., Forced disconnection of N.C. contacts 14 AWG recommended AC-15, DC-13-22 to 176 F (-3 to 8 C) Plastic or cast aluminum

-4 January 23 Accessories Vol. 2, Ref. No. [1266] Accessories Table -2. Accessories Description Switches Used With: Catalog Number Price U.S. $ Cable Plastic coated steel cable, red color, sold in Short and Mid Range E48CARD2 2. meter increments Long Range E48CARD4 3. Eye Bolt and Nut Used for supporting cable All E48CABM8 4. Tightening Turnbuckle Adjusts cable system length to properly position switch contacts Short and Mid Range E48CATM5 5. Long Range E48CATM6 8. Thimble Used where cable is attached to switch, turnbuckle or at end anchor point Short and Mid Range E48CATD2 1. Long Range E48CATD3 2. Pulley Recommended when a 9 turn is required for cable configuration All E48CAPUL 1. Cable Clamp Clamps cable at termination points Short and Mid Range E48CACD2 3. Long Range E48CACD3 5. Spring 24N (2.4 N/mm coefficient) 18.8N (1.26 N/mm coefficient) E48CSM375R or E48CSM375RC E48CAS24 or E48CAS18 16. 1. Quantity ordered indicates length, for example, a quantity of 5 equals five meters of cable. Discount Symbol........................ 1CD1

January 23 Vol. 2, Ref. No. [1267] Dimensions -5 Dimensions.59 (15).98 (25).63 (16).2.59 (15).98 (25).63 (16).2 2.2 (56).28 (7) 2.36 (6) 5.33 4.84 (135.5) (123) 2.24 (57).3 (8) 2.36 (6) 5.41 (137.5) (3).2 (5.2) (3) Figure -5. E48CSP16 Approximate Dimensions in Inches Figure -8. E48CSM16 Approximate Dimensions in Inches.59 (15).98 (25).63 (16).2.59 (15).94 (24).81 (2.5).2 2.89 (73.5).3 (7.5) 6.36 (161.5) 2.36 (6).2 1.57 (4) 2.83 (72).21 (5.4).2 4.88 (124).33 (8.5) 2.2 (56) 4.41 (112).12 (3) 2.36 (6) 3.27 (83).28 (7) 3.23 (82) 1.73 (44).2 (5.2) (3) Figure -9. E48CSM112 and E48CSM118 Approximate Dimensions in Inches Figure -6. E48CSM16B Approximate Dimensions in Inches 2.36 (6).2 1.57 (4).59 (15) 2.83 (72).94 (24).21 (5.4).2 6.8 (154.5) 2.2 (56).81 (2.5).2.33 (8.5) 5.61 (142.5) 2.43 (62).59 (15).3 (7.5).94 (24).21 (5.4) 7.65 (194.2).33 (8.5) 3.76 (95.5) 1.79 (45.5).81 (2).2 7.17 (182.2).28 (7) 1.38 (35) 3.23 (82) 2.58 (65.5) Figure -7. E48CSM112B Approximate Dimensions in Inches.47 (12) 1.38 (35) 2.83 (72) 3.23 (82) 2.58 (65.5) Figure -1. E48CSM135B, E48CSM218B and E48CSM418B Approximate Dimensions in Inches

-6 January 23 Dimensions Vol. 2, Ref. No. [1268] 1.42 (36).79 (2).79 (2).2 3.74 (95).35 (9) L R.79 (2) 1.38 (35) 5.91 (15) 6.5 (165) 1.59 (269) 7.2 (183) 3.94 (1) 2.36 (6). (13) (3) 4.21 (17) 2.17 (55) 3.35 (85).26 (6.5).31 (8) 1.89 (48) 3.86 (98) Figure -11. E48CSM17B Approximate Dimensions in Inches 5.47 (139) 4.72 (12).28 (7) L.98 (25) R 3.43 (87) 1.85 (47).47 (12) 4.9 (124.5) 2.28 (58) 1.2 (26).96 (24.5) 5.39 (137) 1.93 (49).39 (1) 8.11 (26) 7.32 (186) Figure -13. E48CSM375R Approximate Dimensions in Inches 2.56 (65) 3.94 (1) 3.54 (9) 2.36 (6) 3.7 (94).39 (1) 1.1 (28).65 (16.5) Figure -12. E48CSM375C Approximate Dimensions in Inches

January 23 Vol. 2, Ref. No. [1269] Product Selection -7 Product Selection Table -3. Product Selection Short Range Span Length 2 foot (6m) Span Length Plastic Body Non-latching ON/OFF Switching only not for human safety use 2 foot (6m) Span Length Non-latching ON/OFF Switching only not for human safety use 2 foot (6m) Span Length Contact Operation N 4 N 5 N 5 CLOSED OPEN.5 (1.2).6 (1.6).5 (1.2).16 (4).13 (3.2).17 (4.4).16 (4).14 (3.6).13 (3.2) Latch:.18 (4.5).2 7.2 7.19 (4.8) 7 Power Handling 5V AC 1A 5V AC 1A 5V AC 1A Switching Frequency 5/minute 5/minute 17/minute Catalog Number Price U.S. $ E48CSP16 98. E48CSM16 121. E48CSM16B 162. Mid Range Span Length 4 foot (12m) Span Length Non-latching ON/OFF Switching only not for human safety use 4 foot (12m) Span Length N 9 N 9.19 (4.8).19 (4.8).16 (4).16 (4) Latch:.22 (5.5).24 (6) 12.24 (6) 12 4V AC 4V AC 5/minute 2/minute E48CSM112 168. E48CSM112B 186. 59 foot (18m) Span Length Non-latching ON/OFF Switching only not for human safety use 4V AC Non-latching models are for ON/OFF switching only and are not suitable for human safety applications. N 15.6 (1.5).25 (6.3).22 (5.5).28 (7) 24 5/minute E48CSM118 182. Discount Symbol....................... 1CD1

-8 January 23 Product Selection Vol. 2, Ref. No. [127] Table -3. Product Selection (Continued) Mid Range Span Length (Continued) 59 Foot (18m) Span Length 2N.O./1N.C. 33 34 Contact Operation 33-34 N 8 CLOSED OPEN.27 (6.8).24 (6).26 (6.5) Latch:.3 (7.5).32 (8) 2 Power Handling 4V AC Switching Frequency 2/minute Catalog Number Price U.S. $ E48CSM418B 29. E48CSM418B-LUV 34. 2N.O./2N.C. 33 34 45 46 33-34 45-46 N 8.27 (6.8).24 (6) Latch:.3 (7.5).32 (8) 2 4V AC 2/minute E48CSM218B 29. E48CSM218B-LUV 34. 115 Foot (35m) Span Length N 5.46 (11.8) Latch:.49 (12.5).43. (11) (13) 18 5V AC 2/minute E48CSM135B 25. Long Range Span Length 23 Foot (7m) Span Length N 18.82 (2.8).79 (2) Latch:.87 (22).95 (24) 32 5V AC 2/minute E48CSM17B 31. E48CSM17B-LUV 36. 49 Foot (15m) Span Length (245 Foot [75m] Each Direction) each direction L R 25 25 23 24 3 2 12 12 2 3 11 12 11-12 23-24 11-12 11 12 23-24 23 24 Latch Normal Latch 25V AC 1A 1/minute E48CSM375R E48CSM375R-LUV 38. 43. 49 Foot (15m) Span Length (245 Foot [75m] Each Direction) each direction 23 24 11 12 11 12 23 24 11-12 23-24 11-12 23-24 L R 25 25 3 2 12 12 2 3 Latch Normal Latch 5V AC 1A 1/minute E48CSM375RC 458. E48CSM375RC-LUV 58. Units available with optional 24 28V AC/DC LED indicating light. Discount Symbol........................ 1CD1

January 23 Vol. 2, Ref. No. [1271] Key Interlock Switches DIN Models -9 Contents Description Page Key Interlock Switches DIN Models Product Description...... -9 Features............... -9 Standards and Certifications.......... -9 Technical Data.......... -9 Dimensions............. -1 Product Selection........ -11 Product Description The E48 DIN-Style Safety Key Interlock Limit Switch is designed to be used with movable guards or covers which must be closed for operational safety. The key portion of the switch is affixed to the movable door, cover or other such guard. The switch itself is mounted to a rigid portion of the machine. When the guard is opened, the key is removed from the switch, thereby positively breaking the normally closed contacts. This interrupts the control circuit, stopping machine operation. Dual entry points for actuating key top or side Tough plastic construction Standards and Certifications UL Listed TUV IEC 947-5-1 EN6947-5-1 NEMA A6 (UL/CSA Pilot Duty) Direct Opening N.C. contacts per EN6947-5-1 Double insulation Cost-Effective Protection for Operators of Moving Machinery Technical Data Features Head mechanism is designed to be difficult to defeat with common tools Three actuating key styles for mounting flexibility Choose from 1N.O.-1N.C. or 2N.C. DPDB contacts 1/2 14 NPT conduit entrance Four unique head mounting positions Table -4. Specifications Ambient Temperature Operation and Storage: -22 to 158 F (-3 to 7 C) minimum temperature is based upon absence of freezing water or moisture Enclosure Ratings NEMA 4, IP65 conforming to IEC 529. Care must be taken that contaminants do not enter the actuating key area as this may prevent the switch from performing to specifications Ambient Humidity 95%, non-condensing Weight.17 lb (76 grams) Housing Material Synthetic resin Vibration Resistance 1G in both vertical and horizontal axis (from 1 to 5 Hz) conforming to IEC 68-2-27 Shock Resistance 3G in both vertical and horizontal axis conforming to IEC 68-2-27 Mechanical Life 1 million operations minimum Electrical Life 15, operations minimum Short Circuit Protection Recommended: 1A fuse (type gl or gg) (IEC 269) Rated Insulation Voltage 4V (EN 6947-5-1) Electric Shock Protection Insulation Class II (IEC 536) Operating Force 14.7 N (3.3 lbƒ) (extraction) Release Force (insertion) 29.4 N (6.6 lbƒ) Total Travel 1.1 minimum (28 mm) Pretravel.24 ±.1 es minimum (6 ± 3 mm) Direct Opening Force 58.8 N (13.2 lbƒ) minimum Operating Speed.4 to 2 es/second (1 to 5 mm/second) Operating Frequency 3 operations/minute Ratings Rated Current Maximum VA Voltage Thermal Continuous Make Break Make Break 12V AC 1A 6A 6.A 72 VA 72 VA 24V AC 1A 3A 3.A 72 VA 72 VA 48V AC 1A 15A 1.5A 72 VA 72 VA 6V AC 1A 12A 1.2A 72 VA 72 VA

-1 Key Interlock Switches January 23 DIN Models Vol. 2, Ref. No. [1272] Dimensions.3 (7.5).6 (15.3).17 (4.4).35 (9) (3) 1.1 (28). (13 ).41 (1.5).24 (6).59 (15).6 (15.3) (3).17 (4.4) (3).61 (15.5) Four, R (2.15).59 (15).17 (4.3) 1.61 (41) 1.32 (33.5) 2.1 () 1.85 (47)* 1.22 (31) Dual M5 (#1) Mounting Holes.1 (2.5).79 (2)*.87 (22)* *Tolerance: ±.4 (.1).87 (22)* Figure -14. E48 DIN Switch Approximate Dimensions in Inches.85 (21.5) 1.2 (3.5) Two,.16 (4) Holes Depth.2.56 (14.2) 1.2 (3.5) Figure -16. E48KL8 Actuating Key Approximate Dimensions in Inches. (13).69 (17.5) (3).59 (15) 1.1 (28). (13) Four,.59 R (2.15) (15).17 (4.3).55 (14) 1.1 (28).16 (4). (13).59 (15) (3) 1.57 (4) 2.2 (56) Figure -17. E48KL9 Actuating Key Approximate Dimensions in Inches 2.25 (6.3).18 (4.5).35 (9) Figure -15. E48KL7 Actuating Key Approximate Dimensions in Inches

January 23 Vol. 2, Ref. No. [1273] Key Interlock Switches DIN Models -11 Product Selection Table -5. Product Selection Key Interlock Switches Circuit Contact Operations 1N.O.-1N.C. DPDB slow action 11 23 12 11-12 24 23-24 CLOSED OPEN Catalog Number Price U.S. $ E48P4K1 42.5 Key in Switch Key Fully out of Switch 2N.C. DPDB slow action 11 21 12 11-12 22 21-22 E48P4K 42.5 Key in Switch Key Fully out of Switch Note: N.O. and N.C. contacts are defined with the key fully engaged in the switch. Table -6. Model Selection Actuating Keys (must be ordered separately) Adjustable (Self- Aligning) Minimum Key Insertion Radius Catalog Number Price U.S. $ 7.8 es (2 mm) E48KL7 12.9 Vertical 7.8 es (2 mm) E48KL8 4.3 Horizontal 7.8 es (2 mm) E48KL9 4.3 Discount Symbol........................ 1CD1

-12 January 23 Vol. 2, Ref. No. [1274] Notes Product Catalog Number Price U.S. $ Field Sales Contact: Name: Address: Business Card Phone: Fax: Email: Distributor Contact: Name: Address: Business Card Phone: Fax: Email: