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An Investment in Plant Floor Safety 802C Safety Cable Pull Switches 802E Hinge Safety Interlock Switches 802F Safety Interlock Switches
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Page 1: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

An Investment in Plant Floor Safety802C Safety Cable Pull Switches

802E Hinge Safety Interlock Switches802F Safety Interlock Switches

Page 2: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

2

Notes

Page 3: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

1

Safety and ApplicationSafety through relying uponoperational assurance of a stopswitch is a relative term whichdepends upon the design of theswitch as well as the application,installation and maintenance of theswitch.While not the usual practice, ultimateoperational assurance of a stop switchcan be achieved by using redundantstop switches with checking for thepurpose of identifying failure of theredundant stop switch.

The following factors are significantto the safe operation of the stopswitch and must be considered bythose involved with the applications,installation and/or use of stopswitches:1. Use of proper system safety

analysis for the application andinstallation of the stop switch, aswell as the circuit for the stop switch.A system safety analysis should useapplicable standards such as:

• OSHA 1910 “Code of FederalRegulation.”

• EN60204–1, “Safety ofMachinery—ElectricalEquipment of Machines.”

• ANSI/NFPA 79, “ElectricalStandard for IndustrialMachinery.”

• ANSI B11, series of safetystandards.

• EN 292, “Safety of Machinery.”

• Local applicable standards.

2. The application involving the stopswitch should provide for a separatedisconnect switch(es) with provisionfor lockout/tagout of the circuit. Thestop switch must not be used asa disconnect switch.

3. The installation of a stop switchmust be in accordance with themanufacturer’s instructions, as wellas good practice.

4. Follow the manufacturer’srecommendations for short circuitprotection in order to minimize thechance for welded contacts.

5. An effective and completemaintenance procedure andschedule must be established andimplemented for the stop switch andits application utilizing:

The Rockwell Automation/Allen-Bradley Maintenance ofIndustrial Control Equipmentfound in the Rockwell Automation/Allen-Bradley Industrial Controlcatalog.NEMA ICS 1.3, PreventativeMaintenance of Industrial Controland Systems Equipment.NFPA 70B, Electrical EquipmentMaintenance.NFPA 703, Part II (As Adopted byOSHA), Electrical Safety-RelatedWork Practice.

It is the responsibility of theindividual(s) who apply, install and/oruse the stop switch to assurethemselves that all the requirementsfor the application, installation andmaintenance of the stop switch aresatisfactorily met .

MountingPosition the conduit entering the switchin such a manner that any fluid insidethe conduit will not drain into the switchenclosure. Apply sealing compound tothe conduit threads to prevent againstthe entry of fluids through the threads.The conduit threads in the body aremetric Pg13.5 or Pg16. Adaptors aresupplied to convert the conduit threadsto 1/2�–14 NPT.

Clearance holes have been provided inthe enclosure for mounting purposes.Use #10 (M5) screws for mounting.When mounting switches which havepolymeric enclosures, it isrecommended that washers be usedunder the mounting screw heads.

WiringThe wiring terminals will accept #14AWG (2.5mm2) and smaller solid orstranded wire. For proper tightening, itis suggested that wires no smaller than#18 AWG (0.75mm2) be used.

If the switch is equipped with pressureplate type wiring terminals, strip theinsulation approximately 0.375 inch(9.5mm) before inserting the wire underthe pressure plates. Be sure that allstrands of the wire are retained by thepressure plate.If the switch is equipped with bindingscrew type terminals, strip the insulationapproximately 1/2inch (12.7mm) beforeinserting the wire under the bindingscrew. Be sure that the wire is curvedaround the screw and that all strands ofthe wire are retained under the bindingscrew head.

ATTENTION: The normally openand normally closed contactsmust be wired in series todetect cable breakage (seeFigure 4A).

!

A grounding screw is located inside theenclosure on those switches that havemetal enclosures. Some of the metalenclosures may also have an untappedhole on the exterior of the enclosurenear the conduit opening which canalso be used for grounding purposes.

802CCable Pull Safety Switches

Page 4: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

2

After wiring has been completed, checkthat all wires are placed in such amanner that they will not interfere withthe switch portion of the device or withthe proper positioning of the covergasket. Recheck all wiring terminalscrews for tightness.

Replace and securely tighten or latchthe cover and check for propermechanical action before applyingpower to the switch.

ActuationA cable is attached to the actuator. Theswitch is actuated by pulling on thecable. Some switches are spring returnwhile others are maintained positionswitches that will remain in the operatedposition until a reset button on theswitch is pressed.

ATTENTION: The contacts ofMAINTAINED POSITIONSWITCHES will change stateelectrically before themechanical latch ormaintained action takes place.The actuator must be moved adistance sufficient to causethe maintained action tooccur or the system couldrestart upon release of theactuation cable (seeadjustment). On three wirecontrol systems, thepremature release of theactuating cable, beforemechanical latch, would allowthe system to be restartedfrom any start station withoutany reset action at the pullswitch. IF THERE IS ACONCERN, PROCEDURESSHALL BE PUT IN PLACE TOASSURE THAT THESWITCHED LATCH HASOPENED, E.G., A GENTLEPULL ON THE CABLE.

!

Normally the installation is such that theactuating cable is positioned in ahorizontal plane. See Figure 1A, the“Typical Installation Example ”diagram. Care must be taken to insurethat the cable does not become tooslack, preventing proper

actuation. Too much slack could causedelayed response and/or requireexcessive motion by the operator toeffect switch action. If the cable is tootight, however, false actuation of theswitch might occur especially ininstallations that are subject to widevariations in temperature.If the switch is installed in such amanner that the weight of the actuatingcable is supported by the actuator, besure that the cable weight does notcause false operation of the switch.

!ATTENTION: The system should

be tested after installation byactuating the cable. Thecircuit should perform asintended with a minimum ofeffort on the cable. Be surethat the switch will resetproperly when the resetbutton is depressed. Cabletension and/or cable sizeshould be adjusted asnecessary to obtain properoperation.

Installation RecommendationsCable pull switches have two mainrequirements for operation. Onerequirement is direct opening actioncontacts. The second requirement isoverlapping contacts to monitor thecable tension. It is important to followthe installation instructions as well asthe applicable codes and standards forthese types of switches.

Cable InstallationAdjustment: 802C–B, 802C–C, and802C–EDuring adjustment of the switch thecable is stressed using a turnbuckleuntil the normally open contact closes.Once the normally open contact isclosed and the normally closed contactremains closed, the switch is adjustedproperly.

Adjustment: 802C–H, 802C–JDuring adjustment of the switch thecable is stressed using a turnbuckleuntil the normally open contact closes.This is easily accomplished byadjusting the turnbuckle until the markon the shaft aligns with the edge of thehousing. At this point both the normallyopen and the normally closed contactare closed, and the switch is adjustedproperly.

Cable LengthWhere the cable is freely stressed thestandard cable length is outlined in theproduct selection guide in the catalog.When installing a switch with a cablerun between the standard length andthe maximum length, the following shallbe considered:

� Pulleys are used for all supports,

� The ambient temperature will notvary by any more than 10�C (18�F),

� A spring is installed at the anchoringend of the cable.

It is recommended that the cables beinstalled on a straight run (see Figure1A). However, if the installation requiresthe cable to be installed aroundcorners, pulleys shall be used (seeFigure 1B).

Figure 1B

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The switching distance (distance tooperate contacts) must be taken intoaccount when determining theoperating distance “X.” This distancemust be greater than the operatingtravel of the switch. This will assurethere is sufficient room to move

Figure 1A Typical Installation Example

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Note: When installing a switch with a cable run between the standardlength and the maximum length, a spring shall be installed at theanchoring end (see Figure 3 for spring installation).

802CCable Pull Safety Switches

Page 5: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

3

the cable and operate the switch. Themaximum distance the cable can befreely stressed (distance betweensupports) is 5m (16.4ft). Care should betaken to assure that the cable will slidefreely through all supports. It isimportant not to exceed the maximumlength of cable as specified in theselection guide and assure that thecable properly operates the switch.

Attach the red PVC coated cable to theswitch, turnbuckle, eye stiffener,clamps, and eye loop as shown inFigures 1 and 2. Attach the turnbuckleabout halfway along the cable span,then attach the other half in a similarmanner.

Figure 2

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Typical Installations of 802C–N SwitchesFor installations with large ambienttemperature variation or cable runs upto 50m (150ft) (25m (75ft) on each sideof switch) the cable pull switch 802C–Nshould be used. The operation of thisswitch is by means of connecting acable and two tension springs to anoperating lever (see Figure 3 fordetails).The cable configuration is shown inFigure 3. The cable is connected to theturnbuckle, eye loops and spring asoutlined in Figure 2.

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Temperature Effects on CableThe normal operating temperaturerange is –30o C to 80 o C (–22 o F to176 o F). The supplied cable will expandand contract at a rate of 6.89 x 10–6

inches per degree per inch (3µm permeter per degree).

OperationWhen the cable is pulled the normallyclosed contacts will open, interruptingthe circuit (see Figure 4C). If the cablebreaks or becomes slack the normallyopen contact will reopen (see Figure4B) and interrupt the control circuit.

MaintainedSome of the cable pull switches arealso available with a latch feature andmanual reset. This requires the operatorto manually reset the switch after theproblem has been cleared.

ATTENTION: After actuation andbefore resetting themaintained switch, themachinery should beinspected in order to detectthe reason for activation.

!

802CCable Pull Safety Switches

Page 6: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

4

Figure 4ACable Stressed at Rated Force

Figure 4BCable Broken or Slack, Stop Signal Would Be Initiated

Figure 4C Cable Pulled to Initiate Stop Signal

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MaintenanceThe stop switch, cable, and applicationmust be inspected periodically toevaluate the operability of the stopswitch and cable assembly. An initialinspection must be made within 3 to 4months after installation. If inspectionreveals contamination has reached thestop switch or cable assembly, thecause must be eliminated. Replacethe stop switch and/or cableassembly when any damaged,broken, deformed, or badly wornparts (including contacts) or

assemblies are found to be a part ofthe stop switch and/or cableassembly.

The pulleys and other moving partsassociated with the cable should beperiodically lubricated.

In the event any short circuit protectiondevice in the circuit (such as a fuse orcircuit breaker) should trip, the stopswitch must be inspected for damagebefore restoring power and replacedif the switch is damaged. In any event,the stop switch and cable assemblyshould be replaced at specified

intervals based upon theenvironment and operatingconditions. Replacement of the stopswitch and cable assembly shouldbe considered no later than 500,000operations. Always test the controlsystem for proper functioning undercontrol conditions to avoid hazards inthe event of control malfunction aftermaintenance or replacement of the stopswitch. For additional information,refer to the maintenance section ofthis catalog and the installationinstruction for the safety switch.

802CCable Pull Safety Switches

Page 7: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

5

Description802C cable pull switches are intendedfor applications such as materialhandling conveyors, transfer machines,painting lines, etc. These switches aretypically wired in a control circuit tointerrupt the machine operation whenan operator pulls a cable. Theseswitches comply IEC 60947–5–1, CSA,UL, DIN VDE 0660 T200. The switchesare available in many mountingconfigurations.

Specifications

Features� Enclosure rating IP65 (IEC 529),

NEMA 1, 2, 3, 4, and 12

� Overlapping contacts to monitorcable tensions

� Positive opening NC contacts perIEC 60947–5–1

� Contacts rated NEMA A300/P300

� Conduit entries available are 1/2�NPT (with Pg to 1/2� NPT conduitadaptor), Pg 11, Pg 13.5 and Pg 16depending on the control (metric toU.S. conduit adaptor available)

� Available with or without reset

� CSA certified, UL listed, and CEmarked for applicable directives

� Variable pull forces available fordifferent lengths of cable

802CCable Pull Safety Switches

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Page 8: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

6

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Page 9: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

7

Selection Guide—mm (inches)

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Page 10: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

8

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802CCable Pull Safety Switches

Page 11: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

9

Dimensions—mm (inches) (continued)

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802CCable Pull Safety Switches

Page 12: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

10

Dimensions—mm (inches) (continued)

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802CCable Pull Safety Switches

Page 13: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

11

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802C AccessoriesCable Pull Safety Switches

Page 14: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

12

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802C AccessoriesCable Pull Safety Switches

Page 15: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

13

Safety and ApplicationSafety through relying uponoperational assurance of each safetyinterlock switch is a relative termwhich depends upon the design ofthe switch, as well as the application,installation, and maintenance of theswitch.

The application of each safety interlockswitch must use redundant interlockswitches, as well as a checking circuit.The following factors are significantto the safe operation of a safetyinterlock switch and must beconsidered by those involved withthe application, installation and/oruse of safety interlock switches:

1. Use of a proper system safetyanalysis for the application andinstallation of each safety interlockswitch, as well as the circuit for eachof the switches. Such a systemsafety analysis should useapplicable standards such as:

• EN60204–1, “Safety ofMachinery— ElectricalEquipment of Machines.”

• ANSI/NFPA/79, “ElectricalStandard for IndustrialMachinery.”

• ANSI B11 Series, “MachineSafety Standards”—includingB11.19—Control Reliability.

• EN, 292, “Safety of Machinery.”

• Other local applicablestandards.

2. The application of each safetyinterlock switch must use redundantinterlock switches with a checkingcircuit which identifies anymalfunction or improper sequencingof any switch (whether anintermittent, momentary, orpermanent malfunction) and,thereupon, initiates apre-determined corrective action(i.e., stopping or preventing furtheroperation of the control equipment)to include a maintenance procedurefor replacement of the failedinterlock switch before further use ofthe controlled equipment.

3. The installation of the safetyinterlock switch must be inaccordance with the manufacturer’sinstructions, as well as goodpractice. Refer to NEMA StandardICS 5 Clause 9 Part 3.

4. Follow the manufacturer’srecommendations for short circuitprotection in order to minimize thechance for welded contacts.

5. An effective and completemaintenance procedure andschedule must be established andimplemented for the safety interlockswitch and its application utilizing:

The Rockwell Automation/Allen-Bradley Maintenance ofIndustrial Control Equipmentfound in the Rockwell Automation/Allen-Bradley Industrial Controlcatalog.NEMA ICS 1.3, PreventativeMaintenance of Industrial Controland Systems Equipment.NFPA 70B, Electrical EquipmentMaintenance.NFPA 703, Part II (As Adopted byOSHA), Electrical Safety-RelatedWork Practice.

Only qualified individuals should apply,install, use, and/or maintain the safetyinterlock switch; it is the responsibility ofsuch individuals to see that therequirements for the application,installation, use, and/or maintenance ofthe safety interlock switch aresatisfactorily met.

Installation RecommendationsThe switch shall not be used as amechanical stop. Applicationconsideration must be given to themaximum listed travel capabilities of theswitch.

For reliable contact operation, theactuator should be adjusted to provideovertravel beyond the operating point,but not damage the switch by excessiveovertravel.

Installation Consideration—IEC Direct Opening ActionContactsThe safety interlock switch has an IECdirect opening action feature. Theactuator must move a distance beyondthe trip point to engage the IEC directopening action feature. For properoperation of the IEC direct openingaction system, the switch actuator mustbe adjusted to provide at least 3.5� ofovertravel beyond the trip point.

802EHinge Safety Interlock Switches

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Safety Switches

14

MaintenanceThe interlock switch and applicationmust be inspected periodically toevaluate the operability of the switch.An initial inspection must be madewithin 3 to 4 months after installation. Ifinspection reveals contamination hasreached the interlock switch, the causemust be eliminated. Replace theinterlock switch when any damaged,broken, deformed, or badly wornparts (including contacts) or

assemblies are found to be a part ofthe interlock switch.

In the event any short circuit protectiondevice in the circuit (such as a fuse orcircuit breaker) should trip, the interlockswitch must be inspected for damagebefore restoring power and replaced,if the switch is damaged. In any event,the interlock switch should bereplaced at specified intervals basedupon the environment and operatingconditions. Replacement of the

interlock switch should beconsidered no later than 500,000operations. Always test the controlsystem for proper functioning undercontrol conditions to avoid hazards inthe event of control malfunction aftermaintenance or replacement of theinterlock switch. For additionalinformation, refer to the maintenancesection of this catalog and theinstallation instruction for the safetyswitch.

802EHinge Safety Interlock Switches

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Safety Switches

15

DescriptionRockwell Automation/Allen-Bradleyhinge safety interlock switches areintended for interlocking applicationsand are usually permanently mountedon machine guards, covers and doorsto verify that they are in the properposition. These switches are typicallywired in a control circuit to interrupt themachine operation when the door isopened, or when the hinge actuator ismoved. These switches comply withGS–ET–15, IEC, EN 60947–5–1. Theswitches are available in threemounting configurations. Type Bhousing is glass fiber-reinforcedthermoplastic. Type B switches areavailable in both lever type and rotatingshaft type actuators. Type E and Rhousings are die-cast aluminum andavailable in lever type actuators only.

Features� Enclosure rating IP65 (IEC529),

NEMA 1, 2, 3, 4, 12, and 13

� Direct acting normally closedcontacts per IEC, EN 60947–5–1and DIN VDE 0660

� Contacts rated NEMA A300, P300

� Conduit entries available are 1/2�NPT (conduit adaptor supplied withthe switch), Pg11 and Pg13.5depending on the control (metric toUS conduit adaptor available)

� The profile of the operator headprovides a high degree of tamperresistance for the switch

� CSA certified, UL listed, CE markedfor all applicable directives and BGpending

� Actuator head can be rotated in 90�increments.

Specifications

802EHinge Safety Interlock Switches

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Page 18: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

16

Selection Guide—mm

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802EHinge Safety Interlock Switches

Page 19: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

17

Selection Guide—mm

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802EHinge Safety Interlock Switches

Page 20: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

18

Dimensions—mm (inches)

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802EHinge Safety Interlock Switches

Page 21: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

19

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802EHinge Safety Interlock Switches

Page 22: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

20

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802EHinge Safety Interlock Switches

Page 23: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

21

Safety and ApplicationSafety through relying uponoperational assurance of each safetyinterlock switch is a relative termwhich depends upon the design ofthe switch, as well as the application,installation, and maintenance of theswitch.

The application of each safety interlockswitch must use redundant interlockswitches, as well as a checking circuit.The following factors are significantto the safe operation of a safetyinterlock switch and must beconsidered by those involved withthe application, installation and/oruse of safety interlock switches:

1. Use of a proper system safetyanalysis for the application andinstallation of each safety interlockswitch, as well as the circuit for eachof the switches. Such a systemsafety analysis should useapplicable standards such as:

• EN60204–1, “Safety ofMachinery— ElectricalEquipment of Machines.”

• ANSI/NFPA/79, “ElectricalStandard for IndustrialMachinery.”

• ANSI B11 Series, “MachineSafety Standards”—includingB11.19—Control Reliability.

• EN, 292, “Safety of Machinery.”

• Other local applicablestandards.

2. The application of each safetyinterlock switch must use redundantinterlock switches with a checkingcircuit which identifies anymalfunction or improper sequencingof any switch (whether anintermittent, momentary, orpermanent malfunction) and,thereupon, initiates a pre-determined corrective action (i.e.,stopping or preventing furtheroperation of the control equipment)to include a maintenance procedurefor replacement of the failedinterlock switch before further use ofthe controlled equipment.

3. The installation of the safetyinterlock switch must be inaccordance with the manufacturer’sinstructions, as well as goodpractice. Refer to NEMA StandardICS 5 Clause 9 Part 3.

4. Follow the manufacturer’srecommendations for short circuitprotection in order to minimize thechance for welded contacts.

5. An effective and completemaintenance procedure andschedule must be established andimplemented for the safety interlockswitch and its application utilizing:

The Allen-Bradley Maintenanceof Industrial Control Equipmentfound in the Allen-BradleyIndustrial Control catalog.NEMA ICS 1.3, PreventativeMaintenance of Industrial Controland Systems Equipment.NFPA 70B, Electrical EquipmentMaintenance.NFPA 703, Part II (As Adopted byOSHA), Electrical Safety-RelatedWork Practice.

Only qualified individuals should apply,install, use, and/or maintain the safetyinterlock switch; and it is theresponsibility of such individuals to seethat the requirements for theapplication, installation, use, and/ormaintenance of the safety interlockswitch are satisfactorily met.

Installation RecommendationsThe switch shall not be used as amechanical stop. Applicationconsideration must be given to themaximum listed travel capabilities of theswitch.

For reliable contact operation, theactuator key should be adjusted toprovide overtravel beyond the operatingpoint, but not damage the switch byexcessive overtravel.

Installation Consideration—IEC Direct Opening ActionContactsThe safety interlock switch has an IECdirect opening action feature. Theactuator must move a distance beyondthe point to engage the IEC directopening action feature. For properoperation of the IEC direct openingaction system, the switch actuator mustbe adjusted to provide at least 1mm(0.4in) of overtravel beyond the trippoint.

802FKey Safety Interlock Switches

Page 24: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

22

MaintenanceThe interlock switch and applicationmust be inspected periodically toevaluate the operability of the switch.An initial inspection must be madewithin 3 to 4 months after installation. Ifinspection reveals contamination hasreached the interlock switch, the causemust be eliminated. Replace theinterlock switch when any damaged,broken, deformed, or badly wornparts (including contacts) or

assemblies are found to be a part ofthe interlock switch.

In the event any short circuit protectiondevice in the circuit (such as a fuse orcircuit breaker) should trip, the interlockswitch must be inspected for damagebefore restoring power and replacedif the switch is damaged. In any event,the interlock switch should bereplaced at specified intervals basedupon the environment and operatingconditions. Replacement of the

interlock switch should beconsidered no later than 500,000operations. Always test the controlsystem for proper functioning undercontrol conditions to avoid hazards inthe event of control malfunction aftermaintenance or replacement of theinterlock switch. For additionalinformation, refer to the maintenancesection of this catalog and theinstallation instruction for the safetyswitch.

802FKey Safety Interlock Switches

Page 25: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

23

DescriptionRockwell Automation/Allen-Bradley keyinterlock switches are intended forinterlocking applications on machineguards, covers and doors to verify theyare in the proper position. Theseswitches are typically wired in a controlcircuit to interrupt the machineoperation when the key is removed.These switches comply withGS–ET–15, IEC 60947–5–1. Theswitches are available in threemounting configurations. Type Shousing is thermoset polyester and typeE and R housings are die-castaluminum.

Features� Enclosure rating IP65 (IEC 529),

NEMA 1, 2, 3, 4, 12, and 13.

� Separate actuator key.

� Direct opening action normallyclosed contacts per IEC 60947–5–1and DIN VDE 0660.

� Contacts rated NEMA A300, P300.

� Conduit entries available are 1/2�NPT (conduit adaptor supplied withthe switch), Pg 11 and Pg 13.5depending on the control (metric toU.S. conduit adaptor available).

Specifications

Features (continued)� High degree of tamper resistance

due to the triple coding of theactuator key.

� Actuator protected against dismantleby one way notch on actuator cover(S Style).

� CSA certified, UL listed, CE markedfor all applicable directives, and BGpending.

� Variable actuator approach directionwith different actuator openings andthe ability to rotate the head.

� Models are available with keys thatallow for a high degree ofmisalignment.

Replacement Keys

ATTENTION: Replacement keysare made available forreplacement purposes only(mounting) and shall not beused for any other purposessuch as defeating any otherinterlock switch.

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For replacement keys, please contactyour local Rockwell Automation salesoffice.

802FKey Safety Interlock Switches

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Page 27: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

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Selection Guide—mm

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802FKey Safety Interlock Switches

Page 28: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

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Safety Switches

26

Selection Guide—mm

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Page 29: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

27

DescriptionThe Magnetically Operated KeyInterlock Switches are intended forsafety interlocking applications requiringseparate actuator key and interlockingmechanisms. These switches aretypically used on machines to assurethat protective guards will remain closeduntil an operating sequence iscomplete. The switches comply withGS–ET–19, IEC 60947–5–1, DIN VDE0660 T200.

Features� Requires separate control signal to

release key.

� Designed to assure the machine/process cannot operate when theactuator key is not in the closed andlocked position.

� Monitors the switch and theinterlocking system.

� High-impact, heavy-duty die-castaluminum housing.

� Compact/space saving design.

� Actuator key triple coded forprevention of false manipulation.

Specifications

Features (continued)� Actuator approach can be turned in

90� increments.

� Mounting according to DIN EN50041.

� Designed to IEC 60947–5–1 andGS–ET 19.

� CSA certified, UL listed, CE markedfor all applicable directives, and BGpending.

� Available with operating voltages24V DC, 120V AC, 230V AC.

� Direct opening action contacts per IEC 60947–5–1.

Replacement Keys

ATTENTION: Replacement keysare made available forreplacement purposes only(mounting) and shall not beused for any other purposessuch as defeating any otherinterlock switch.

!

For replacement keys, please contactyour local Rockwell Automation salesoffice.

802FKey Safety Interlock Switches

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Page 30: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

28

The Key Operated Interlocking Switch (802F–T) Comes With Two Types of Locking Methods:

� Mechanical Lock— Mechanicallylocked—solenoid unlocked. The keyis locked in place after full insertion.The key is released when anoperational voltage is applied to thesolenoid.

E1, E2 — solenoid control

13–14 — safety contacts

21–22 — safety contacts

31–32 — auxiliary contacts

43–44 — auxiliary contacts

� Solenoid Lock— Solenoidlocked—mechanically unlocked. Thekey is locked in place when fullyinserted and when an operationalvoltage is applied. Release of thekey occurs when the operationalvoltage is removed from thesolenoid.

802FKey Safety Interlock Switches

E1

E2

43 44

13 14 21 22 31 32

E1

E2

43 44

13 14 21 22 31 32

Page 31: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

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Safety Switches

29

Selection Guide—mmMechanically Locked—Solenoid Unlocked

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802FKey Safety Interlock Switches

Page 32: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

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Safety Switches

30

Selection Guide—mmSolenoid Locked—Mechanically Unlocked

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802FKey Safety Interlock Switches

Page 33: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

31

Dimensions—mm (inches)

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Spring Loaded Key

� ������

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802FKey Safety Interlock Switches

Page 34: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

32

Dimensions—mm (inches)

���� ���

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802FKey Safety Interlock Switches

Page 35: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

33

Dimensions—mm (inches)

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2 and 3 Contact Switch

Single N.C. Output Switch

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802FKey Safety Interlock Switches

Page 36: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

34

Dimensions—mm (inches)

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Vertical Radius

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802FKey Safety Interlock Switches

Page 37: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

35

Dimensions—mm (inches)

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802FKey Safety Interlock Switches

Page 38: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

36

Notes

Page 39: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

37

Notes

Page 40: An Investment in Plant Floor Safety · 1. Use of proper system safety analysis for the application and installation of the stop switch, as well as the circuit for the stop switch.

Safety Switches

38

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