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SAFETY-RATED LIMIT SWITCHESSwitchSeriesHousingMaterialHousingDimensionsZ/T235 Die-cast zinc 1 1 ⁄4"×1 1 ⁄4"×2 1 ⁄2"Z/T236Glass-fibre reinforcedthermoplastic1 1 ⁄4"×1 1 ⁄4"×2 1 ⁄2"Z/T335 Die-cast aluminum 1 1 ⁄2"×1 1 ⁄4"×3"Z/T336Glass-fibre reinforcedthermoplastic1 1 ⁄2"×1 1 ⁄2"×3"Z332 Die-cast aluminum 1 1 ⁄2"×1 1 ⁄2"×3"SELECTION GUIDEDegree ofProtectionIP67IP67IP67IP67IP65ContactConfigurations1 NO & 1 NC2 NO2NC1 NO & 1 NC2 NO2NC1 NO & 1 NC2 NO2NC1 NO & 1 NC2 NO2NC1 NO & 1 NC(snap-actiononly)CatalogPage2282362442502567C50Glass-fibre reinforcedthermoplastic1"×1 1 ⁄8"× 3 ⁄4" IP30 1 NO & 1 NC260227
SERIES Z/T235Safety-Rated, Positive-BreakMiniature DIN Limit SwitchesFeatures & Benefits• “Positive-Break” NC contacts … won’t stick or weld shut.• Watertight design … meets IP67 washdown requirements.• Rugged, corrosion-resistant housing … tolerates hostileenvironments.• Six popular actuator styles … for application versatility.• Four 90° actuator mounting positions … provideinstallation flexibility.• Slow or snap-action operation … choose to best satisfyapplication requirements.• Safety-system approved … models with positive-breakcontacts approved for use in machine guarding applications.• Meets rigid safety agency standards … IEC, BG, VDE,UL and CSA.®DescriptionThe Z/T235 Series limit switches are designed for use withmovable machine guards/access gates which must be closedfor operator safety … and for any other presence/positionsensing application normally addressed with conventional limitswitches. Their positive-opening NC contacts provide a higherlevel of safety and reliability than conventional spring-drivenswitches whose contacts can weld or stick shut.Each is available with a choice of six standard actuators …rounded plunger, roller plunger, roller rocking lever, rodrocking lever, adjustable roller rocking lever and one-wayroller lever … mountable in any one of four 90° positions. Allrocking levers are positively-locked to the shaft, and areadjustable throughout 360° in 10° increments.Units are available with a choice of slow-action or snap-actioncontacts.Their rugged metal housing and IP67 rating make them idealalternatives to conventional limit switches.ORDERING GUIDEFOR FEATURE:SPECIFY:1. Contact operation:Slow ActionTSnap ActionZ2. Operating head V3. Roller lever 12 H4. Body size 235-5. No. of NO contacts 16. No. of NC contacts 17. Degree of protection IP 67 z8. Sealing of operating head (optional) z*Example 1: TV12 H 235-11zExample 2: ZV 12 H 235-11z*Available on rocking lever actuator style only.Typical ApplicationsThe Z/T235 Series may be used in any presence/positionsensing application normally addressed with conventionallimit switches. Models with positive-break NC contacts areapproved for use in safety systems. For safety applicationsthe switch must be mounted such that the actuating elementof the machine displaces the switch actuator far enough toexceed the positive-break point. (See contact functiondiagrams: symbol *).Optional SafetyController.See Page 327.228®is a trademark of SCHMERSAL
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GK-1 CATALOG-HANDBOOK • NINTH EDI
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TZGPICTORIAL PRODUCT INDEXSDGAZ335S
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ALPHANUMERIC PRODUCT INDEXProductSe
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AZ17 TECHNICAL DATAMECHANICAL SPECI
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SERIES AZ17ziIndividually-Coded Mov
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AZ17zi TECHNICAL DATAMECHANICAL SPE
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SERIES AZ15/16DescriptionThe Series
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AZ15/16 TECHNICAL DATAMECHANICAL SP
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AZ15/16 ACTUATOR KEY SPECIFICATIONS
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SERIES AZ16ziIndividually-Coded Mov
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AZ16zi TECHNICAL DATAHousingActuato
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SERIES AZ 200Pulse-Echo BasedNon-Co
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SERIES TZGDescriptionThe Series TZG
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TZG TECHNICAL DATAMECHANICAL SPECIF
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SERIES SDGDescription®The Series S
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SDG TECHNICAL DATAMECHANICAL SPECIF
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SERIES AZ335Tamper-Resistant Movabl
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AZ335 INDIVIDUALLY-CODED ACTUATOR K
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SERIES SHGVCable-less Keyed Mechani
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SERIES AZ415DescriptionThe AZ415 Se
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AZ415 TECHNICAL DATAACTUATOR KEY DI
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42SaferbyDesign
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SERIES AZM170DescriptionThe AZM170
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AZM170 TECHNICAL DATAMECHANICAL SPE
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48AZM170 TECHNICAL DATADIMENSIONS10
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AZM161Solenoid-Latching Safety Inte
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AZM161 TECHNICAL DATAMECHANICAL SPE
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SERIES AZM 200New!Pulse-Echo BasedN
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SERIES MZM 100Non-Contact Magnetic-
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SERIES TZF/TZMDescriptionThe TZF/TZ
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SERIES TZF/TZM TECHNICAL DATAMECHAN
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SERIES TKF/TKMDescription®The TKF/
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SERIES TKF/TKM TECHNICAL DATAMECHAN
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SERIES TZKDescriptionThe TZK Series
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SERIES TZK TECHNICAL DATAMECHANICAL
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SERIES AZM415DescriptionThe AZM415
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AZM415 TECHNICAL DATAWIRING SCHEMAT
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AZS 2305Fail-To-Safe TimerSafety Ca
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FWS 1205Fail-To-Safe Standstill Mon
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FWS 2505Fail-To-Safe Standstill Mon
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80SaferbyDesign
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SERIES STSSafety Guard Door-Handle
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SERIES STSTO ORDER COMPLETE STS DOO
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SERIES STS ACCESSORIESLockout Acces
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SERIES B25Safety Door Handle System
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SERIES TG-1Door Handle For Use With
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SERIES ZSD3-Position Hand-Held Enab
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SERIES GFSSafety Foot Switch®Featu
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GFS SERIES TECHNICAL DATAMECHANICAL
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SERIES SEPK(G)New!2-Hand Control Co
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Series TFA/TFIGuard Alignment AidNe
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ZS71Emergency Cable-Pull Switch (Me
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ZS71 TECHNICAL DATAMECHANICAL SPECI
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ZS73 Heavy-Duty Emergency Cable-Pul
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ZS75 Heavy-Duty Emergency Cable-Pul
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Series ZS441 Heavy-Duty Emergency C
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ZS441 TECHNICAL DATAMECHANICAL SPEC
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ZS75S BidirectionalHeavy-Duty Bidir
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ZS75S BIDIRECTIONAL TECHNICAL DATAR
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ZS80 Emergency Cable-Pull Switch (M
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S900Cable-Pull Switch Wire Tensione
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128SaferbyDesign
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SERIES BNS250Coded-Magnet SensorsFe
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SERIES BNS33 & BNS33SCoded-Magnet S
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BNS33 TECHNICAL DATAMECHANICAL SPEC
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SERIES BNS33SStainless Steel Coded-
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SERIES BNS36Coded-Magnet SensorsNew
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SERIES BNS30 & BNS300Coded-Magnet S
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SERIES BNS333Coded-Magnet Sensors w
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SERIES BNS16Coded-Magnet SensorsFea
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SERIES BZ16Dual-Channel Non-Contact
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SERIES BNS-B20New!Coded-Magnet Sens
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SERIES CSS 180New!Pulse-Echo BasedN
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SERIES CSS 34Pulse-Echo Based Compa
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158SaferbyDesign
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AES 1102/AES 1112BNS Compatible Con
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AES 1135/AES 1165BNS Compatible Saf
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AES 1235/AES 1265BNS Compatible Saf
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AES 2135BNS Compatible Safety Contr
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SERIES SRB 211 ANBNS Compatible Saf
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AES 2285/SRB 207 AN BNS Compatible
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Page 189 and 190: SERIES AZ 200Pulse-Echo BasedNon-Co
Page 191 and 192: SERIES AZ 200 TECHNICAL DATAMECHANI
Page 193 and 194: SERIES AZ 200 WIRING EXAMPLESWIRING
Page 195 and 196: SERIES AZM 200New!Pulse-Echo BasedN
Page 197 and 198: SERIES AZM 200 TECHNICAL DATAMECHAN
Page 199 and 200: SERIES AZM 200 WIRING EXAMPLESWIRIN
Page 201 and 202: SERIES MZM 100Non-Contact Magnetic-
Page 203 and 204: SERIES MZM 100 DIAGNOSTICSFunction
Page 205 and 206: SERIES CSS 180New!Pulse-Echo BasedN
Page 207 and 208: SERIES CSS 180 TECHNICAL DATASWITCH
Page 209 and 210: SERIES CSS 180 WIRING EXAMPLE 2Seri
Page 211 and 212: SERIES CSS 34Pulse-Echo Based Compa
Page 213 and 214: SERIES CSS 34 TECHNICAL DATASWITCHI
Page 215 and 216: SERIES CSS 34 WIRING EXAMPLE 2Wirin
Page 217 and 218: COMPATIBLE PULSE-ECHO SAFETY CONTRO
Page 221 and 222: SERIES TESFDescriptionThe TESF Seri
Page 223 and 224: SERIES TESF TECHNICAL DATADIMENSION
Page 225 and 226: Series TESZHinged Safety Interlock
Page 227 and 228: Series ES95 SBHinged Safety Interlo
Page 229 and 230: Series TVS335Hinged Safety Interloc
Page 231 and 232: Series T.C 235/236Hinged Safety Int
Page 233 and 234: T.C 235 TECHNICAL DATAContact funct
Page 235 and 236: T.C 236 TECHNICAL DATAContact funct
Page 237: 226SaferbyDesign
Page 241 and 242: Z/T235 TECHNICAL DATAContact functi
Page 247 and 248: SERIES Z/T236Safety-Rated, Positive
Page 255 and 256: SERIES Z/T335Heavy-Duty Safety-Rate
Page 261 and 262: SERIES Z/T336Heavy-Duty Safety-Rate
Page 267 and 268: SERIES Z332Heavy-Duty Safety-Rated,
Page 269 and 270: Z332 TECHNICAL DATAContact function
Page 271 and 272: SERIES C50Compact, Safety-Rated,Pos
Page 277 and 278: Introduction - Optoelectronic safet
Page 279 and 280: Design and operating principleOptoe
Page 281 and 282: ApplicationSafety distanceEN 999Saf
Page 283 and 284: Modes of operation and functionsMas
Page 287 and 288: OSSD FAILCOSSD FAILCSafety light cu
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OSSD FAILCOSSD FAILCSafety light cu
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Safety light curtains and safety li
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OSSD FAILCOSSD FAILCSafety light cu
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Safety light grid (retro-reflector)
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Safety light curtains and safety li
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CCSafety light curtains and safety
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Safety light grids with integrated
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==Accessories for safety light curt
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294SaferbyDesign
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Safety monitoring modules for optoe
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Safety monitoring modules for optoe
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300SaferbyDesign
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Safety light barriersSLB 2002030,8
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Safety light barriersSLB 200-C• T
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Safety light barriersSLB 400-C• T
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Safety light barriers accessories S
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SERIES SMS 3Safety Pressure MatsFea
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SERIES SMS 3 COMPATIBLE SAFETY CONT
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OPTIONAL JUNCTION BOX FOR MULTIPLE
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316SaferbyDesign
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SERIES SEOptical Safety Edges/Bumpe
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SERIES SE TECHNICAL DATAAluminum Mo
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SERIES SE TECHNICAL DATATransmitter
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SERIES SE TECHNICAL DATASE 304CElec
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326SaferbyDesign
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ModelSRB 201 ZHSRB 301 HC/ROperatin
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SERIES SRB 201 ZH &SRB 301 HC/RTwo-
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SERIES SRB 202 MSLMuting Safety Con
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SERIES SRB 206 &SRB 206 SQGeneral P
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SERIES SRB 211 ANGeneral Purpose Sa
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SERIES SRB 211 STGeneral Purpose Sa
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SERIES SRB 301 LC &General Purpose
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SERIES SRB 301 MCGeneral Purpose Sa
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SERIES SRB 301 STSERIES SRB 301 ST
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SERIES SRB 202 C &SRB 400 CDifferen
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SERIES SRB 401 LCGeneral Purpose Sa
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SERIES SRB 402 EM &SRB 401 EM-115VS
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SERIES PROTECT-IE-02 &PROTECT-IE-11
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358SaferbyDesign
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360
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I. Man-Machine SafeguardingPrincipl
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364FIGURE 2Conventional versus Posi
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7What is meant by a “positive lin
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10What are “self-checking,” “
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15Why are safety interlock switches
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II. Control Reliability19What is me
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22What are “redundant” logic ci
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III. Risk Assessment26What is “ri
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29Which of these risk category safe
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IV. Safety Standards,Marking and th
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38To what type machines does the Eu
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42Why should safety controllers be
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VI. Applications and Solutions46Wha
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Frequently Asked QuestionsSelection
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I. Selection & Application Characte
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5What light curtain resolutions are
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10What is “muting”?“Muting”
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14What questions might I ask to bet
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17How do I calculate the correct
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19After doing the “safety distanc
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24Must light curtains only be used
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IV. Standards & Certifications30Doe
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Blanking (Fixed Blanking):“Fixed
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OSSD:“OSSD” is the abbreviation
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SELECTED MACHINE SAFEGUARDINGTERMIN
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Point-of-Operation: the area(s) of
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Safety Enable: (See “Authorized O
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prEN1760-1 Safety of Machinery - Pr
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418SaferbyDesign
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TypeDesignation420123NEMA, UL, CSA
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GENERAL TERMS & CONDITIONS OF SALEO
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424NOTES
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