“KB” - “KM” SERIES LIMIT SWITCHES
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Transcript of “KB” - “KM” SERIES LIMIT SWITCHES
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““KB” - “KM” SERIES LIMIT SWITCHESKB” - “KM” SERIES LIMIT SWITCHES
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““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHESFACTS
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.
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““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHESFACTS
Three fundamental parts compose the LIMIT SWITCH:
Head
Contact block
Body
• Operating head
• Body (housing or container)
• Contact block
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• KB series with plastic body
• KM KM series with metal body
““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHES
LOVATO Electric LOVATO Electric has innovated the range of limit by designing the has innovated the range of limit by designing the new K series with dimensions per EN50047: new K series with dimensions per EN50047:
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POSITION DETECTION VERSION
““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHES
SAFETY VERSION
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AVAILABLE RANGE
Metal Model
19 operating heads
9 types of contact blocks
Plastic Model
2 auxiliary contacts 3 auxiliary contacts
SPARE PARTSIncorporated
auxiliary contacts
Incorporated auxiliary contacts
““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHES
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““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHES
KB plastic series
Product body made of double insulated, self-extinguishing
thermoplastic polymer
KM metal series
Product body made of Aluminium-zinc alloy (zama)
MODULARITY
PLASTIC AND METAL BODY
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““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHESMODULARITY
• 19 operating heads (metal) 19 operating heads (metal) that are interchangeable and that are interchangeable and complementarycomplementary
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1NO+1NC 2NC 1NO+1NC 1NO+1NC
2NC2NO
1NO+2NC2NO+1NC 3NC
INTERCHANGEABLE AND REMOVABLE AUXILIARY CONTACTS
““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHES
Snap actionSnap actionSlow breakSlow break(make before break)
Slow breakSlow break
Slow breakSlow breakSlow break
MODULARITY
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• Operating head fixing by bayonet insert mechanism.
SIMPLE ASSEMBLY
ADVANTAGESADVANTAGES
““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHES
Traditional switchTraditional switch
• 4 screws• Internal components can pop out of their place
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45°
45°
45°
SIMPLE ADJUSTMENT
““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHESADVANTAGESADVANTAGES
• Operating head can be adjusted at 90° angles.
Traditional switchTraditional switch
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““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHES
SIMPLE ADJUSTMENT
ADVANTAGESADVANTAGES
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VERY SIMPLE WIRING
““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHES
• Removable auxiliary contact block for quick and easy wiring
ADVANTAGESADVANTAGES
• Cable entry in lower contacts is indirect so the user must bend cables.
Traditional switchTraditional switch
• Captive cover screw.
• Cover fixed by only one captive screw and hinged on the bottom by quick removal
• Direct cable entry in lower contacts
• Terminal screw supplied open
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““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHES
EXTREMELY SIMPLE WIRING
ADVANTAGESADVANTAGES
Traditional switchTraditional switch
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““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHES
• Body with M20 cable entry (PG13.5 cable entry on request).
ADVANTAGESADVANTAGES
CABLE ENTRY COMPLIANT WITH RECENT INTERNATIONAL STANDARDS
• PG13.5 cable entry invalidated by recent standards
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• 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).
SUMMARY SUMMARY
““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHES
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• 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
TECHNICAL FEATURESTECHNICAL FEATURES
““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHES
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CERTIFICATIONS - COMPLIANCECERTIFICATIONS - COMPLIANCE
““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHES
COMPLIANT WITH:• EN50047• IEC/EN60947-5-1• IEC/EN60204-1• EN81-1• EN1088
CERTIFICATIONS OBTAINED:• cULus (USA and CANADA) KB… series.
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APPLICATION EXAMPLESAPPLICATION EXAMPLES
““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHES
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APPLICATION EXAMPLESAPPLICATION EXAMPLES
““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHES
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““KB”KB” - - “KM” S“KM” SERIES LIMIT SWITCHESERIES LIMIT SWITCHES
• 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• …
APPLICATIONSAPPLICATIONS
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K B A 1 S 11
Limit switch, K series, EN 50047 standard
Type of bodyB = Plastic housingM = Metal housing
A1 = Top push rod plungerB1 = Plastic top roller push plungerB2 = Metal top roller push plungerC1 = Plastic roller centre push leverC2 = Metal roller centre push leverD1 = Plastic roller side push leverand so on
Type of contactS = Snap actionL = Slow-break actionContact numbering11 = 1NO+1NC02 = 2NC20 = 2NO12 = 1NO+2NC21 = 2NO+1NC03 = 3NC
STOCK MANAGEMENTSTOCK MANAGEMENTInterpretation of the complete switch order codes
Example:
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K X C B S 11
Limit switch, K series, EN 50047 standardX = Accessorial identificationType of bodyCB = Plastic housingCM = metal housing
Type of contactS = Snap actionL = Slow-break action
Contact numbering11 = 1NO+1NC02 = 2NC20 = 2NO12 = 1NO+2NC21 = 2NO+1NC03 = 3NC
STOCK MANAGEMENTSTOCK MANAGEMENTBody complete with auxiliary contacts only
Example:
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K X A
Limit switch. K series, EN 50047 standard
X = Accessorial identificationA= OperatorType of operatorA1 = Top push rod plungerB1 = Plastic top roller push plungerB2 = Metal top roller push plungerC1 = Plastic roller centre push leverC2 = Metal roller centre push leverD1 = Plastic roller side push leverand so on
STOCK MANAGEMENTSTOCK MANAGEMENTOperating heads
Example:
1A
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Thank you and goodbye