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FLAMEPROOF LIMIT SWITCHES - MDA Controls · LIMITEX Explosion proof position limit switch. Rugged...
Transcript of FLAMEPROOF LIMIT SWITCHES - MDA Controls · LIMITEX Explosion proof position limit switch. Rugged...
FLAMEPROOF LIMIT SWITCHES
Rotary type
Main features Pag. 3
Certifications Pag. 4
Technicalspecifications Pag. 5
Overalldimensions Pag. 6
Position type
Main features Pag. 7
Certifications Pag. 8
2contactsversion Pag. 9
4contactsversion Pag. 10
Overalldimensions Pag. 11
Technicalspecifications Pag. 12
IND
EX
LIMITEX POSITIONTYPE
LIMITEX ROTARYTYPE
FULL BODY STAINELESS STEEL
• Accurateadjustmentofcamsbymeansofscrews.• PositiveopeningNCcontactsforsafetyfunctions.• Mechanicallifeofswitches:1millionoperations.• Protectiondegree:IP66.• Ambienttemperaturerange:-40°Cto+60°C.• ExternalenclosuremadeofG20castiron,stainlesssteeltransmissionandgeardrivingshafts, selflubricatingtechnopolymergearsanddrivingbushes.• Allmaterialsandcomponentsusedarewearresistant• FullBodyStainlessSteelVersionAvailable
GENERAL SAFETY SPECIFICATIONS
Maximum power supply 300VacMaximum current intensity 3 AMaximum dissipated power 2 WattRated frequency 50/60Hz
GENERAL TECHNICAL SPECIFICATIONS
Maximum rotation speed 800rev./min.Cable entry Nr.1M20x1,5-Nr.1M25x1,5-Nr.1½NPT
• Revolutionratiosfrom1:15to1:1578,achievedbycombiningdifferentsecondaryoutputstages.• Snapactionswitcheswith1NO+1NCchange-overcontacts.• Itcanbeequippedwithacamsetwith2-3-4switches.• Availablewithflangefordirectcouplingtothetransmissionunit.
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Atex rotary limit switch
LIMITEX
Explosionproofrotarylimitswitch.Ruggedandreliable,Limitexisusedtocontrolthemovementofindustrialmachineryinpotentiallyexplosiveareas.
Conformity to Atex Standards
EN60079-0:2009Explosiveatmospheres-Equipment-Generalrequirements EN60079-1:2007Explosiveatmospheres-Equipmentprotectionbyflameproofenclosures‘d’ EN60079-31:2009Explosiveatmospheres-Equipmentdustignitionprotectionbyenclosure“t”
Conformity to IECEx Standards
IEC60079-0:2011Explosiveatmospheres-Equipment-Generalrequirements IEC60079-1:2007-04Explosiveatmospheres-Equipmentprotectionbyflameproofenclosures‘d’ IEC60079-31:2008:Explosiveatmospheres-Equipmentdustignitionprotectionbyenclosure“t”
Certificate
INERIS13ATEX0020X-IECExINE13.0051X
Certification for group I, IIA, IIB and IIC with the marks*
MINING:IM2ExdIMb(ATEX)ExdIMb(IECEx) GASZone1and2:II2GExdIIBT6GborExdIICT6Gb(ATEX)ExdIIBT6orExdIICT6Gb(IECEx) DUSTZone21and22:II2DExtbIIICT85°CDbIP66(ATEX)ExtbIICT85°CDbIP66(IECEx) GAS&DUST:II2GDExdIIBorIICT6GbExtbIICT85°CDbIP66
Conformity to Community Directives
2006/95/CELowVoltageDirective-2006/42/CEMachineryDirective
Conformity to CE Standards
EN60204-1Safetyofmachinery-Electricalequipmentofmachines EN60204-32Safetyofmachinery-Electricalequipmentofmachines-Requirementsforhoistingmachines EN60947-1Low-voltageswitchgearandcontrolgear EN60947-5-1Low-voltageswitchgearandcontrolgear-Controlcircuitdevicesandswitchingelements-Electromechanicalcontrolcircuitdevices EN60529Degreesofprotectionprovidedbyenclosures
CE
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*Theuserisresponsibleforchoosingtheproperlimitswitchprotectiontype,groupandmaximumcasetemperature.Theuserisalsoresponsibleforthecorrectinstallation,connectiontotheelectricalnetworkanduseandmaintenanceoftheelectricaldevices.
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Utilisationcategory AC15
Ratedoperationalvoltage 250Vac
Ratedoperationalcurrent 3 A
Ratedthermalcurrent 10A
Ratedinsulationvoltage 300Vac
Mechanicallife 1x106operations
Connections 6.3mmFastontaps
Wires 2x0.5mm2,2x1.5mm2,1x2,5mm2
Tighteningtorque 0.5Nm
Microswitchtype Singlebreak,snapactions
Contacts 1NO+1NCchange-overcontacts(AllNCcontactsareofthepositiveopeningoperationtype)
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Scheme
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Weightwithfeet(Kg) 4,6Weightwithflangeandfeet(Kg) 5,2
Ref. Drawing No. and type of cams No. and type of switches Code
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2camsA 2PRSL0003XXswitches PRFC0008PEC
2camsC 2PRSL0003XXswitches PRFC0009PEC
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3camsA 3PRSL0003XXswitches PRFC0004PEC
3camsC 3PRSL0003XXswitches PRFC0006PEC
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4camsA 4PRSL0003XXswitches PRFC0202PEC
4camsC 4PRSL0003XXswitches PRFC0198PEC
Cam Switching angle Code
A 1point 20.5°±0.5° PRSL7140PI
B 10points 14.0°±0.5° PRSL7142PI
C 60°sector 78.0°±0.5° PRSL7141PI
E 180°sector 199.5°±0.5° PRSL7144PI
H 335°sector 344.0°±0.5° PRSL7143PI
STANDARD CAM SETS
CAM REFERENCE CHART
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m)
FE
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MO
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G
FLA
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E A
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N° 1 X M20
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• PositiveopeningNCcontactsforsafetyfunctions.• Mechanicallifeofswitches:1millionoperations.• Operationfrequency:3600operations/hourmax.• Protectiondegree:IP66.• Ambienttemperaturerange:-40°Cto+60°C.• ItfeaturesruggedexternalenclosuremadeofG20castironandcrossrodsupportmadeof zincalloy.Internalcomponentsaremadeofmaterialswhichguaranteelongmechanicallifeand continuousperformance• FullBodyStainlessSteelVersionAvailable
GENERAL SAFETY SPECIFICATIONS
Maximum power supply 250VacMaximum current intensity 3 AMaximum dissipated power 2 WattRated frequency 50/60Hz
GENERAL TECHNICAL SPECIFICATIONS
Operation frequency 3600operations/hourmaxCable entry Nr.1M20x1,5-Nr.1M25x1,5-Nr.1½NPT
• 2or4snapactionswitcheswith1NO+1NCchange-overcontacts.• Crossrodsmoveto3or4maintainedpositions,withmovementevery90°.• Modularadapterwithfixingpoints.
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Atex cross position limit switch
LIMITEX
Explosionproofpositionlimitswitch.Ruggedandreliable,Limitexisdesignedtocontrolthemovementofoverheadtravellingcranes,hoistsandcomplexmachinetoolsoperatinginpotentiallyexplosiveareas.
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Conformity to Atex Standards
EN60079-0:2009Explosiveatmospheres-Equipment-Generalrequirements EN60079-1:2007Explosiveatmospheres-Equipmentprotectionbyflameproofenclosures‘d’ EN60079-31:2009Explosiveatmospheres-Equipmentdustignitionprotectionbyenclosure“t”
Conformity to IECEx Standards
IEC60079-0:2011Explosiveatmospheres-Equipment-Generalrequirements IEC60079-1:2007-04Explosiveatmospheres-Equipmentprotectionbyflameproofenclosures‘d’ IEC60079-31:2008:Explosiveatmospheres-Equipmentdustignitionprotectionbyenclosure“t”
Certificate
INERIS13ATEX0020X-IECExINE13.0051X
Certification for group I, IIA, IIB and IIC with the marks*
MINING:IM2ExdIMb(ATEX)ExdIMb(IECEx) GASZone1and2:II2GExdIIBT6GborExdIICT6Gb(ATEX)ExdIIBT6orExdIICT6Gb(IECEx) DUSTZone21and22:II2DExtbIIICT85°CDbIP66(ATEX)ExtbIICT85°CDbIP66(IECEx) GAS&DUST:II2GDExdIIBorIICT6GbExtbIICT85°CDbIP66
Conformity to Community Directives
2006/95/CELowVoltageDirective-2006/42/CEMachineryDirective
Conformity to CE Standards
EN60204-1Safetyofmachinery-Electricalequipmentofmachines EN60204-32Safetyofmachinery-Electricalequipmentofmachines-Requirementsforhoistingmachines EN60947-1Low-voltageswitchgearandcontrolgear EN60947-5-1Low-voltageswitchgearandcontrolgear-Controlcircuitdevicesandswitchingelements-Electromechanicalcontrolcircuitdevices EN60529Degreesofprotectionprovidedbyenclosures
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Utilisationcategory AC15
Ratedoperationalcurrent 3 A
Ratedoperationalvoltage 250Vac
Ratedthermalcurrent 10A
Ratedinsulationvoltage 300Vac
Mechanicallife 1x106operations
Connections Screw-typeterminals
Wires 1x2.5mm2,2x1.5mm2
(UL-(c)UL:use60°Cor75°Ccopper(CU)conductorandwire16-18AWG)
Tighteningtorque 0.8Nm
Microswitchtype Doublebreak,snapactions
Contacts 1NO+1NC(AllNCcontactsareofthepositiveopeningoperationtype)
Scheme
LIM
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MAXIMUM ACTUATING DIMENSION
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T-type rod - Cross rod with 3 maintained positions
• Pre-travel angle for rotation contact operation: 70°-49°
• Maximum rotation angle for each maintained position: 90°
• Average angle for the mechanical tripping: 48° Rod - Rod and Roller
• Pre-travel angle for rotation contact operation: 24°
• Maximum rotation angle: 65° Rod - Rod and Roller
• Pre-travel angle for rotation contact operation: 49°
• Maximum rotation angle for each maintained position: 90°
• Average angle for the mechanical tripping: 48°
• Maintained positions each: 90°
30°
Rod length
300 mm
200 mm
250 mm
150
mm
rod
125
mm
rod
100
mm
rod
Actu
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g po
int 6
0 m
m
Actu
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g po
int 9
3 m
m
Actu
atin
g po
int 7
6 m
m
In order to ensure proper operations, the dimensions shall not be increased; anyhow, they can be decreased, taking into account that the closer the impact point is to the center of the head, the higher the impact and the mechanical wear of rod and shaft are.
IMPORTANT: the maximum impact speed is 1.35 m/s, refering to the ideal impact points showed in the drawing.
Weight(Kg) 4,5
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Ratedoperationalcurrent 16Aat250Vac
Ratedoperationalvoltage 500Vac
Ratedthermalcurrent 10A
Ratedinsulationvoltage 300Vac
Mechanicallife 10x106operations
Connections Screw-typeterminals
Wires 1x2.5mm2,2x1.5mm2
Microswitchtype Snapactions
Contacts 4Microswitches1NO+1NC
Scheme
OPERATION ANGLES
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0-ResetpositionA-Microswitchworkingangle:65°1-Maximumlefthandedoperation:90°2-Maximumrighthandedoperation:90°
Theendofroundofthe“crossbar”limitswitches havenolimitstop(i.e.theycanrotatearound360°).
LIM
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A A
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m)
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LIM
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WIT
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LIM
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X W
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WIT
H 4
CO
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Actuating travel Positions Rod
3maintained “T”type
3maintained Cross
3maintained “T”type
3maintained Cross
3maintained “T”type
3maintained Cross
3maintained “T”type
3maintained Cross
3maintained “T”type
3maintained Cross
3maintained “T”type
3maintained Cross
4maintained Cross
4maintained Cross
4maintained Cross
Actuating travel Rod lenght
200mm
200mm
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13 21
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14
13 21
22
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Limitswitchesareequippedwith1NO+1NCsnapactionswitches
Limitswitchesareequippedwith4Microswitches1NO+1NCsnapactionswitches
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Brakemotors
Flameproofbrakes
Flameprooflimitswitches
Flameproofpendantcontrolstations
Hoistdrives
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