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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OP

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3

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

RT

IFIC

AT

ION

S

*Theuserisresponsibleforchoosingtheproperlimitswitchprotectiontype,groupandmaximumcasetemperature.Theuserisalsoresponsibleforthecorrectinstallation,connectiontotheelectricalnetworkanduseandmaintenanceoftheelectricaldevices.

4

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)

TE

CH

NIC

AL S

PE

CIF

ICAT

ION

S O

F T

HE

MIC

RO

SW

ITC

HE

S

12

11

14

CO

MP

ON

EN

TS

Scheme

5

Weightwithfeet(Kg) 4,6Weightwithflangeandfeet(Kg) 5,2

Ref. Drawing No. and type of cams No. and type of switches Code

16

2camsA 2PRSL0003XXswitches PRFC0008PEC

2camsC 2PRSL0003XXswitches PRFC0009PEC

17

3camsA 3PRSL0003XXswitches PRFC0004PEC

3camsC 3PRSL0003XXswitches PRFC0006PEC

18

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

8

OV

ER

ALL D

IME

NS

ION

S (m

m)

FE

ET

MO

UN

TIN

G

FLA

NG

E A

ND

FE

ET

MO

UN

TIN

G

N° 1 X M20

6

• 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.

6

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

RT

IFIC

AT

ION

S

8

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

ITE

X

WIT

H 2

CO

NTA

CT

S

MAXIMUM ACTUATING DIMENSION

14

13 21

22

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

atin

g po

int 6

0 m

m

Actu

atin

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

9

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

14

13 21

22

0-ResetpositionA-Microswitchworkingangle:65°1-Maximumlefthandedoperation:90°2-Maximumrighthandedoperation:90°

Theendofroundofthe“crossbar”limitswitches havenolimitstop(i.e.theycanrotatearound360°).

LIM

ITE

X

WIT

H 4

CO

NTA

CT

S

0

1 2

A A

10

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ION

S (m

m)

11

LIM

IT S

WIT

CH

ES

LIM

ITE

X W

ITH

2 C

ON

TAC

TS

WIT

H 4

CO

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CT

S

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

14

13 21

22

.

14

13 21

22

.

Limitswitchesareequippedwith1NO+1NCsnapactionswitches

Limitswitchesareequippedwith4Microswitches1NO+1NCsnapactionswitches

12

Brakemotors

Flameproofbrakes

Flameprooflimitswitches

Flameproofpendantcontrolstations

Hoistdrives

COELoffersawiderangeofexclusiveproductsfocusedondedicatedindustrialsectors.

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13

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