MICRO SWITCH Key Actuated Safety Switches GKM Series 004750 Issue 5 Datasheet FEATURES • Red switch body for easy safety recognition • Common 22 mm mounting centers which accept M4 or #8 mounting hardware • Prewired cable or M12 connector for electrical termination • Positive opening action of normally closed contacts to EN/IEC 60947-5-1-3 specification • Switch chamber IP67 environmentally sealed for indoor or outdoor applications • CE and UL certifications • Designed and agency evaluated for safety functions up to and including a SIL3 level DESCRIPTION When the application requires a miniature key-operated safety interlocking limit switch for machine guarding, Honeywell provides the GKM Series. The compact housing size of 34 mm L x 16 mm W x 70 mm H is optimal where there is limited space available on machinery. The double-insulated plastic housing and rugged stainless steel actuator key are better suited for demanding environments. The unique design of the switch allows the actuator key to be inserted from the top or the side. The switch can be mounted from the front or back as required. As with the Honeywell safety limit switches, all normally closed contacts are positive opening . Direct mechanical linkage within the switch force the normally closed contacts open when the actuator key is removed from the switch, opening the circuit. The switches are available with either a cable connection or an integral four-pin M12 connector. Sensing and Internet of Things POTENTIAL APPLICATIONS • Safety interlock for small doors and apertures on machinery • Safety interlock for multiple doors on machinery with daisy chain option (twin connectors) DIFFERENTIATION • Miniature package size of 34 mm L x 16 mm W x 70 mm H • Switch design with dual entry (side or top) for actuator key • Daisy-chain capability for monitoring multiple gates on machinery • Rigid or flexible stainless steel actuator keys PORTFOLIO In addition to the GKM Series safety interlocking limit switches, Honeywell offers other safety interlocking limit switches. These include the EN50047 plastic body GKE Series, plastic body GKN Series, EN50041 metal body GKB Series, and metal body solenoid (trapped key) GKL/R Series. Non-interlocking safety limit switches include the GSS Series, FF Series non-contact switches, and the 1CPS Series and 2CPS Series cable/rope pull safety limit switches. Key-Actuated Safety Switches, GKM Series Table 1. Performance Specifications Characteristic Parameter Description Housing material Dual entry key-operated safety interlock switch CE, DOC 141 (EN60947-1 and EN 60947-5-1) cULus, UL508 (File E37138) SIRA, Functional Safety Certificate (IEC 61508-2:2010) Red glass-filled polyester body, black glass-filled polyamide actuator housing Actuator key material Stainless steel Agency certifications Electrical connection Contact/switch options¹ Contact design Contact material Electrical ratings Utilization category Rated operational voltage (Ue) Rated operational current (Ie) Thermal current (Ith) Rated insulation (Ui) Rated impulse withstand voltage (Uimp) Short circuit protection device (SCPD) Side or bottom exit cable (UL rated 105 °C with PVC jacket and cores four conductor 0.5 mm², 20 AWG). Side or bottom exit integral M12 Micro 4-pin dc-style connector, Side and bottom exit (twin connectors) integral M12 Micro 4-pin dc style connectors for daisy chaining and monitoring multiple doors 1NC/1NO slow action BBM, 2NC slow action Double break, electrically separated (Zb) Silver alloy (standard), gold-plated (low energy applications) See Table 2 AC-15, B300; DC-13, Q300 240 Vac, 250 Vdc 1.5 A, 0.27 A 5 A, GKME Series 2 A 500 V 2500 V Class RK5 fuse, rated at 4.5A Pollution degree 3 Environmental sealing Operating temperature Shock Vibration MCTF (Mechanical life) MCTF (Electrical life) IP 66/67, GKME Series (twin connectors) IP66 per EN60529; NEMA 1, 12, 13 -25 °C to 85 °C (-13 °F to 185 °F) 50 G per IEC 60068-2-27 10 G per IEC 60068-2-6 >1,000,000 cycles with single-sided confidence limit of 95% 32,000 cycles SIL Capability² SIL3 capable with HFT=1, SIL2 capable with HFT=0 with reference to IEC 61508-2:2010 Functional Safety Proof test interval 1 year ¹All normally closed contacts are positive opening ²HFT (Hardware Fault Tolerance). Table 2. Electrial Ratings Electrical Ratings for Body Style A, B, C, D Electrical Ratings for Body Style E (Twin Conn.) Standard Silver Contacts Gold Plate Contacts Standard Silver Contacts Gold Plate Contacts AC Ith = 5 A 1 V, 10 mA min. 50 V, 100 mA max. 30 Vdc, 2 A max. Ith = 2 A 1 Vdc, 10 mA min. 30 Vdc, 100 mA max. Ith = 2 A DC B300 AC15 Q300 DC13 Ue Ie Ue Ie Volts Amps Volts Amps 120 3 125 0.55 240 1.5 250 0.27 2 sensing.honeywell.com Key-Actuated Safety Switches, GKM Series Figure 1. Product Nomenclature GKM D 0 3 Switch Type Body Style Electrical Termination Circuitry GKM Series Dual-Entry, KeyOperated Safety Switch A Side exit cable 0 M12 micro connector, 4-pin male 6 2NC, slow action 3 Keys1 1NC/1NO, BBM slow action B Bottom exit cable 1 1 m, four conductor cable C Side exit connector 2 2 m, four conductor cable 7 2NC, gold contacts slow action D Bottom exit connector 3 3 m, four conductor cable 9 1NC/1NO, BBM gold contacts slow action E Twin connectors Listing Key style GKZ51M GKZ52M GKZ53M GKZ54M GKZ55M Straight 90° Side/side adjustable Up/down adjustable Multi-directional A key actuator (ordered separately) is required for each switch. 1 NOTE: not all combinations of model code are available. Please contact your Honeywell provider/representative for assistance. Figure 2. Wiring CIRCUIT DIAGRAMS2 TWIN CONNECTORS CIRCUIT TYPES 3 & 9 CIRCUIT TYPES 6 & 7 3 3 4 2 2 1 1 3 2 4 1 4 3 2 M12 MALE CONNECTOR 3 PIN-OUTS 1 4 CABLE/LEADWIRE OR CONNECTOR CIRCUIT TYPES 3 & 9 CIRCUIT TYPES 6 & 7 BLUE 3 WHITE 2 2 1 BROWN 4 BLACK BLUE 3 WHITE 2 2 1 4 1 BROWN 4 BLACK Refer to circuitry in Figure 1 (Product nomenclature). Sensing and Internet of Things 3 Key-Actuated Safety Switches, GKM Series Figure 3. Product Dimensions • Body Style B CL of key slot CL of key slot 90° - KEY SHOWN IN OPTIONAL ACTUATING POSITIONS 16 [0.63] max. 17,55 [0.691] 12,5 [0.492] CL of key slot 22,0 [0.866] 33 [1.30] ref 32 [1.26] max. Disconnect force 20 N [4.5 lb-f] max. Force disconnect position 10,2 [0.402] 0,5 [0.020] 3,8 [0.148] BODY STYLE A 29,5 [1.16] 33 REF [1.30] 14,5 [0.57] M12 x 1 THD Fit to unused entry. 4 sensing.honeywell.com Keyway 37,4 [1.47] Ø16 [0.63] max. 14,5 [0.57] 3,8 [0.15] M12 x 1 THD cover Figure 4.Slot Slotdust Dust Cover BODY STYLE E BODY STYLE D 29,5 [1.16] Recommended key-in position VIEWS SHOWING OPTIONAL KEY POSITIONS 2 x mounting holes for M4 / #8 screws C'bored both sides Ø9,3 x 4,5 deep [0.366] x [0.177] fitted with brass mounting bushes BODY STYLE C 0,5 [0.020] 36,0 [1.42] CL of key slot 37,4 [1.47] 34 [1.34] max. 3,80 [0.148] Force disconnect position 1,25 [0.049] 14,5 [0.57] Ø16 [0.63] Keyway 14,5 [0.57] Ø16 [0.63] max. Key-Actuated Safety Switches, GKM Series Figure 5. Key Dimensions, continued GKZ51M GKZ52M 45 [1.77] 2,5 [0.098] 12,8 [0.504] GKZ53M 2 X holes for M4 or #8 screws with 45° x 2,2 [0.083] deep 24 [0.945] max. 3,5 [0.138] 14 [0.55] max. 21,3 [0.839] 20,0 [0.79] 22,0 [0.866] 15 [0.59] 6,4 [0.252] min. 2 holes for M4 or #8 screws 50,0 [1.97] 40,0 [1.57] 22,0 [0.866] 2,6 [0.102] 24 [0.945] max. Ø 5,5 [Ø 0.22] 13,2 [0.519] 2,5 [0.10] 12,8 [0.50] 32 [1.26] max. 2,0 [0.08] 90°±2° 19,0 [0.75] GKZ52M - 90° KEY GKZ51M - STRAIGHT KEY GKZ54M GKZ55M 56,0 [2.20] 40,0 [1.57] 50,0 [1.97] 40,0 [1.57] 20,0 [0.79] 26,0 19,0 [1.02] [0.75] 28,0 [1.10] Ø 5,5 [0.22] 2,5 [0.10] 12,8 [0.50] 19,0 [0.75] 2,0 [0.08] Ø 5,5 [0.22] 12,8 [0.50] 2,5 [0.10] 12,0 [0.47] 4,0 [0.16] Table 3. Minimum Actuating Radius Catalog Listing, Description Key opening of switch (vertical) min. radius Key opening of switch (horizontal) min. radius GKZ51M, Straight key 225 mm [8.9 in] 160 mm [6.3 in] GKZ52M, 90° key (right angle) 225 mm [8.9 in] 160 mm [6.3 in] GKZ53M, Adjustable key (side-side) 32 mm [1.26 in] 160 mm [6.3 in] GKZ54M, Adjustable key (up-down) 225 mm [8.9 in] 45 mm [1.77 in] GKZ55M, Multi-directional key 18° max. all directions 18° max. all directions Sensing and Internet of Things 5 Key-Actuated Safety Switches, GKM Series Table 4. Order Guide Catalog Listing1 Body Style Contacts Contact Material Electrical Connection GKMA13 Side exit cable 1NC/1NO slow action, BBM Silver 1 meter cable GKMA19 Side exit cable 1NC/1NO slow action, BBM Gold plated 1 meter cable GKMA23 Side exit cable 1NC/1NO slow action, BBM Silver 2 meter cable GKMA33 Side exit cable 1NC/1NO slow action, BBM Silver 3 meter cable GKMA16 Side exit cable 2NC slow action Silver 1 meter cable GKMA36 Side exit cable 2NC slow action Silver 3 meter cable GKMB13 Bottom exit cable 1NC/1NO slow action, BBM Silver 1 meter cable GKMB19 Bottom exit cable 1NC/1NO slow action, BBM Gold plated 1 meter cable GKMB23 Bottom exit cable 1NC/1NO slow action, BBM Silver 2 meter cable GKMB33 Bottom exit cable 1NC/1NO slow action, BBM Silver 3 meter cable GKMB39 Bottom exit cable 1NC/1NO slow action, BBM Gold plated 3 meter cable GKMB16 Bottom exit cable 2NC slow action Silver 1 meter cable GKMB17 Bottom exit cable 2NC slow action Gold plated 1 meter cable GKMB36 Bottom exit cable 2NC slow action Silver 3 meter cable GKMB37 Bottom exit cable 2NC slow action Gold plated 3 meter cable GKMB56 Bottom exit cable 2NC slow action Silver 5 meter cable GKMC03 Side exit connector 1NC/1NO slow action, BBM Silver M12 Micro connector, 4-pin male GKMC09 Side exit connector 1NC/1NO slow action, BBM Gold plated M12 Micro connector, 4-pin male GKMC06 Side exit connector 2NC slow action Silver M12 Micro connector, 4-pin male GKMC07 Side exit connector 2NC slow action Gold plated M12 Micro connector, 4-pin male GKMD03 Bottom exit connector 1NC/1NO slow action, BBM Silver M12 Micro connector, 4-pin male GKMD09 Bottom exit connector 1NC/1NO slow action, BBM Gold plated M12 Micro connector, 4-pin male GKMD06 Bottom exit connector 2NC slow action Silver M12 Micro connector, 4-pin male GKMD07 Bottom exit connector 2NC slow action Gold plated M12 Micro connector, 4-pin male GKME03 Bottom & side exit connector 1NC/1NO slow action, BBM Silver Twin M12 Micro connectors, 4-pin male GKME09 Bottom & side exit connector 1NC/1NO slow action, BBM Gold plated Twin M12 Micro connectors, 4-pin male GKME06 Bottom & side exit connector 2NC slow action Silver Twin M12 Micro connectors, 4-pin male GKME07 Bottom & side exit connector 2NC slow action Gold plated Twin M12 Micro connectors, 4-pin male An actuator key (ordered separately) is required for each switch. Select actuator key by reviewing product nomenclature tree and dimensional diagrams on page 5. 1 6 sensing.honeywell.com m WARNING ADDITIONAL MATERIALS The following associated literature is available on the Honeywell web site at sensing.honeywell.com: • Product installation instructions • Product range guide IMPROPER INSTALLATION • • Consult with local safety agencies and their requirements when designing a machine-control link, interface and all control elements that affect safety. Strictly adhere to all installation instructions. Failure to comply with these instructions could result in death or serious injury. m WARNING MISUSE OF DOCUMENTATION • • The information presented in this product sheet is for reference only. Do not use this document as a product installation guide. Complete installation, operation, and maintenance information is provided in the instructions supplied with each product. Failure to comply with these instructions could result in death or serious injury. Warranty/Remedy Find out more Honeywell serves its customers through a worldwide network of sales offices, representatives and distributors. For application assistance, current specifications, or pricing contact your local sales office. To learn more about Honeywell’s products, Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship during the applicable warranty period. Honeywell’s standard product warranty applies unless agreed to otherwise by Honeywell in writing; please refer to your order acknowledgment or consult your local sales office for specific warranty details. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace, at its option, without charge those items that Honeywell, in its sole discretion, finds defective. The foregoing is buyer’s sole remedy and is in lieu of all other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. In no event shall Honeywell be liable for consequential, special, or indirect damages. While Honeywell may provide application assistance personally, through our literature and the Honeywell web site, it is buyer’s sole responsibility to determine the suitability of the product in the application. Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this writing. However, Honeywell assumes no responsibility for its use. call +1-815-235-6847 or 1-800-537-6945, visit sensing.honeywell.com, or e-mail inquiries to firstname.lastname@example.org Honeywell Sensing and Internet of Things 9680 Old Bailes Road Fort Mill, SC 29707 honeywell.com 004750-5-EN IL50 GLO July 2017 © 2017 Honeywell International Inc. All rights reserved.