“KB” - “KM” SERIES LIMIT SWITCHES
“KB” - “KM” SERIES LIMIT SWITCHES FACTS The LIMIT SWITCH is an electromechanical device, which can interact with the ambient by sensing an external movement and transforming it into an electric signal that can then be handled by an appropriate control system. It can be used to detect the position of mobile equipment and for safety applications. M22 GB 14 10 03
“KB” - “KM” SERIES LIMIT SWITCHES FACTS Three fundamental parts compose the LIMIT SWITCH: Head Operating head Body (housing or container) Contact block Contact block Body M22 GB 14 10 03
“KB” - “KM” SERIES LIMIT SWITCHES LOVATO Electric has innovated the range of limit by designing the new K series with dimensions per EN50047: KB series with plastic body KM series with metal body M22 GB 14 10 03
“KB” - “KM” SERIES LIMIT SWITCHES POSITION DETECTION VERSION SAFETY VERSION M22 GB 14 10 03
“KB” - “KM” SERIES LIMIT SWITCHES AVAILABLE RANGE 19 operating heads Plastic Model Metal Model Incorporated auxiliary contacts Incorporated auxiliary contacts SPARE PARTS 9 types of contact blocks 2 auxiliary contacts 3 auxiliary contacts M22 GB 14 10 03
“KB” - “KM” SERIES LIMIT SWITCHES MODULARITY PLASTIC AND METAL BODY KB plastic series KM metal series Product body made of double insulated, self-extinguishing thermoplastic polymer Product body made of Aluminium-zinc alloy (zama) M22 GB 14 10 03
“KB” - “KM” SERIES LIMIT SWITCHES MODULARITY 19 operating heads (metal) that are interchangeable and complementary M22 GB 14 10 03
“KB” - “KM” SERIES LIMIT SWITCHES MODULARITY INTERCHANGEABLE AND REMOVABLE AUXILIARY CONTACTS 1NO+1NC 2NC 2NO Snap action Slow break (make before break) 1NO+2NC 2NO+1NC 3NC Slow break M22 GB 14 10 03
“KB” - “KM” SERIES LIMIT SWITCHES ADVANTAGES SIMPLE ASSEMBLY Traditional switch Operating head fixing by bayonet insert mechanism. 4 screws Internal components can pop out of their place M22 GB 14 10 03
“KB” - “KM” SERIES LIMIT SWITCHES ADVANTAGES SIMPLE ADJUSTMENT Traditional switch 45° 45° 45° Operating head can be adjusted at 90° angles. M22 GB 14 10 03
“KB” - “KM” SERIES LIMIT SWITCHES ADVANTAGES SIMPLE ADJUSTMENT M22 GB 14 10 03
“KB” - “KM” SERIES LIMIT SWITCHES ADVANTAGES VERY SIMPLE WIRING Cover fixed by only one captive screw and hinged on the bottom by quick removal Traditional switch Removable auxiliary contact block for quick and easy wiring Direct cable entry in lower contacts Cable entry in lower contacts is indirect so the user must bend cables. Terminal screw supplied open Captive cover screw. M22 GB 14 10 03
“KB” - “KM” SERIES LIMIT SWITCHES EXTREMELY SIMPLE WIRING ADVANTAGES EXTREMELY SIMPLE WIRING Traditional switch M22 GB 14 10 03
“KB” - “KM” SERIES LIMIT SWITCHES ADVANTAGES CABLE ENTRY COMPLIANT WITH RECENT INTERNATIONAL STANDARDS Body with M20 cable entry (PG13.5 cable entry on request). PG13.5 cable entry invalidated by recent standards M22 GB 14 10 03
“KB” - “KM” SERIES LIMIT SWITCHES SUMMARY Total modularity (better stock management) Simple to install and adjust Maximum cabling ease Robust external parts (metal operators) Better safety with the new blocks with 3 auxiliary contacts Comply with recent standards REQUIREMENTS (M20 cable entry). M22 GB 14 10 03
“KB” - “KM” SERIES LIMIT SWITCHES TECHNICAL FEATURES Operating heads: Aluminium-zinc alloy (zama) KB: Self-extinguishing double-insulated polymer thermoplastic body housing KM: Aluminium-zinc alloy (zama) body housing Body degree of protection: IP65 Terminal degree of protection: IP20 Cable connection: Self-releasing screw terminal Rated thermal current Ith: 10A IEC/EN 60947-5-1 contact designation: A600 Q600 Rated insulation voltage Ui: 690VAC Rated impulse withstand voltage Uimp: 6kV Cable entry: M20 M22 GB 14 10 03
“KB” - “KM” SERIES LIMIT SWITCHES CERTIFICATIONS - COMPLIANCE COMPLIANT WITH: EN50047 IEC/EN60947-5-1 IEC/EN60204-1 EN81-1 EN1088 CERTIFICATIONS OBTAINED: cULus (USA and CANADA) KB… series. M22 GB 14 10 03
“KB” - “KM” SERIES LIMIT SWITCHES APPLICATION EXAMPLES M22 GB 14 10 03
“KB” - “KM” SERIES LIMIT SWITCHES APPLICATION EXAMPLES M22 GB 14 10 03
“KB” - “KM” SERIES LIMIT SWITCHES APPLICATIONS Elevators and lifts Mobile protections for machinery Assembly lines Wood-working machines Food processing machines Leather-working and shoe-making machines Band saws Packaging and packing machines Filling and bottling machines Labelling machines Automated storage … M22 GB 14 10 03
Interpretation of the complete switch order codes STOCK MANAGEMENT Interpretation of the complete switch order codes Example: K B A 1 S 1 1 Limit switch, K series, EN 50047 standard Type of body B = Plastic housing M = Metal housing A1 = Top push rod plunger B1 = Plastic top roller push plunger B2 = Metal top roller push plunger C1 = Plastic roller centre push lever C2 = Metal roller centre push lever D1 = Plastic roller side push lever and so on Type of contact S = Snap action L = Slow-break action Contact numbering 11 = 1NO+1NC 02 = 2NC 20 = 2NO 12 = 1NO+2NC 21 = 2NO+1NC 03 = 3NC M22 GB 14 10 03
Body complete with auxiliary contacts only STOCK MANAGEMENT Body complete with auxiliary contacts only Example: K X C B S 1 1 Limit switch, K series, EN 50047 standard X = Accessorial identification Type of body CB = Plastic housing CM = metal housing Type of contact S = Snap action L = Slow-break action Contact numbering 11 = 1NO+1NC 02 = 2NC 20 = 2NO 12 = 1NO+2NC 21 = 2NO+1NC 03 = 3NC M22 GB 14 10 03
Limit switch. K series, EN 50047 standard STOCK MANAGEMENT Operating heads Example: K X A A 1 Limit switch. K series, EN 50047 standard X = Accessorial identification A= Operator Type of operator A1 = Top push rod plunger B1 = Plastic top roller push plunger B2 = Metal top roller push plunger C1 = Plastic roller centre push lever C2 = Metal roller centre push lever D1 = Plastic roller side push lever and so on M22 GB 14 10 03
Thank you and goodbye