EXPLOSION-PROOF PRESSURE, VACUUM, 120 …DIFFERENTIAL PRESSURE AND TEMPERATURE SWITCHES 120 Series 120 Series 2 1 2 0 - B - 1 0 1 2 0 - B - 1 0 3 120-B As safety requirements become

RoHScompliantSIL2

Certified1 2 0 - B - 1 0

• Meetglobalrequirementswithworldwidecertificationsandapprovals

• CertifiedforuseinSIL2functionalsafetysystems.SIL3capable

• NACEMR0175compliantmodels

• Increaseflexibilitywithmultipleoutputs

• Easyinstallationviadualelectricalconduitopenings

• Simplifywiringthrougheasy-to-accessterminalblock

• Matchprocessrequirementswithanassortmentofavailablesensors

• Improvemeasurementaccuracywithultra-lowpressureranges

EXPLOSION-PROOF PRESSURE, VACUUM, DIFFERENTIAL PRESSURE AND TEMPERATURE SWITCHES

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1 2 0 - B - 1 0 w w w . u e o n l i n e . c o m 32 w w w . u e o n l i n e . c o m 1 2 0 - B - 1 0

120 Series

As safety requirements become more stringent, the determiningfactorinspecifyinganindustrialpressure,differentialpressureand/ortemperatureswitchrestsuponthatswitchprotectingequipment,processesandpersonnel.Meetinghazardous location requirementsthroughworldwideapprovalsandcertifications,UE’s120Seriesisthechoicewherepotentially explosive or highly corrosive atmospheresexist.

The 120 Series offers a variety of pressure, vacuum, differentialpressure and temperature ranges, as well as process connections,wettedmaterialsandsensortypes.Withacommonflexibleplatform,modelscanquicklybeadaptedatthefactoryforspecialrequirements,such as ranges, process connections and electrical ratings. Typicalindustriesusing120Seriesswitchesincludechemical,petrochemical,refineryandoil&gasproductionandtransmission.

overview features

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Ultra-low"wcmodelwithweldedstainlesssteeldiaphragm

DifferentialpressuremodelwithOptionM210,Indicatingmodule

Remotebulbandarmoredcapillarytemperaturemodel

Weldedstainlesssteeldiaphragmpressuremodel

• StandardproductapprovalsincludecULus,ATEX&IECEx

• OptionalapprovalsforRussia,Ukraine,China,India,Korea,BrazilandTaiwan

• SIL2CertifiedperIEC61508:2010

• ManymodelscomplianttoNACEMR0175

• Internaladjustmenthexscreworexternaladjustmentviacalibrateddial(s)withtamper-resistantcover

• Integralcoverlock

• SPDT,DPDTordualSPDToutput

• Optionalhermeticallysealedmicro-switch

• Widevarietyofsensormaterials

• OptionalHastelloy®andMonel®sensormaterialforcorrosivemedia

• Wideadjustabledeadbandmodels

• Heattracingtemperaturemodels


120 Series

specificationsSTORAGE TEMPERATURE -65to160°F(-54to71°C)

AMBIENT TEMPERATURE LIMITS -58to160°F(-50to71°C);models36-39,520-525,540-548,701-705,15834-15839: 0to160°F(-17to71°C);types820E,822E:-40to160°F(-40to71°C)setpoint typicallyshiftslessthan1%ofrangefora50°F(28°C)ambienttemperaturechange; lessthan2%fortypesE121&E122

SET POINT REPEATABILITY Temperaturemodels:TypeB,CandF:±1%offullscalerange TypeE:±2%offullscalerange

Pressuremodels126-164,S126B-S164B,171-174,270-274,358-376,520-535,540- 543,701-705,15622,15834,-15839:±1%offullscalerange;models450- 457,550-559:±1/2%offullscalerange;models36-39,183-194,483-494,544-548, 565-567,612-680,15875:±1-1/2%offullscalerangeSHOCK Setpointrepeatsafter15G,10millisecondduration

VIBRATION Setpointrepeatsafter2.5G,5-500Hz

ENCLOSURE Diecastaluminum,epoxypowdercoated;gasketed;coverlock;internalsetpointlock standardontypesJ,C,F;gasketedstainlesssteeltamper-resistantdialcoverontypesB, H,E;aluminumnameplate

ENCLOSURE CLASSIFICATION Certifiedtoenclosuretype4X.ClassI,Division1productmeetsenclosuretype7;Class II,Division1productmeetsenclosuretype9.CertifiedtoIP66requirements

SWITCH OUTPUT OneortwoSPDT;dualswitchmaybeseparatedupto100%ofrange;excepttype822E whereswitch#2canbesetupto25%ofrangespanbelowswitch#1setpoint;switches maybewired“normallyopen”or“normallyclosed”.

ELECTRICAL RATING* 15A125/250/480VACresistive(standard),2A@30VDC,1A@48VDC,0.5A@125 VDC;excepttypesJ120-15622,15834-15839,H121-15875:20A125/250/480VAC resistive,6A@30VDC,0.5A@125VDC,0.25A@250VDC;excepttypesB121-13272, B122-13322,E121-13273,E122-13321:22A480VACresistive,2A@30VDC,1A@48 VDC,0.4A@125VDC.

REFERENCE SCALES TypesB,E&H:externaldial.Scaledivisionsvarywithrange(seemodelcharts)

WEIGHT 3-8lbs.Varieswithtypeandmodel

ELECTRICAL CONNECTION TypeH,B,E;one3/4"NPTE/C;typeJ,C,F,820E,822E;two3/4"NPTE/C; terminalblockstandard

PRESSURE CONNECTION ModelsS126B-S164B,171-194,483-494,520-535:1/2"NPT(female);models565-567: 1-1⁄2"flushmountconnection;models540-548:1/8"NPT(female);allothers:1/4"NPT (female)

TEMPERATURE ASSEMBLY Bulb and capillary:6feet304stainlesssteel(standard)exceptforE121-13273and E122-13321:10feet;Fill:Non-toxicoilfilled

Immersion stem:Nickel-platedbrass(standard)exceptforB121-13272and

B122-13322:stainlesssteel.

TEMPERATURE DEADBAND TypeF120,820E,822E:typically1%;typeB-,C-,andE-121and122:typically2%of rangeunderlaboratoryconditions(70°F[21°C]ambientcirculatingbathatrateof 1/2°Fperminutechange)

PRESSURE DEADBAND Seeindividualmodelchartsonpages6-14.ConsultUEfordeadbandsonswitchoptions

DIFFERENTIAL PRESSURE DifferentialpressureindicationavailabletypesH121KandH122KwithoptionM210INDICATOR (OPTION M210) (checkmodelavailabilityunderoptions);accuracyapproximately1%mid50%ofrange, 3%atends;windowisplexiglassandgasketed;indicatormaybefieldadjustedfor approximately±1%accuracyatanysetpointwithinrange

TEMPERATURE INDICATION Temperatureindicationavailabletypes820Eand822E.Indicationaccuracyis±1%of adjustablerange

*NOTE:DCRatingsarebasedonexperience-ConsultUEforfurtherinformation.VDCratingsarenotlistedonnameplates.


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UNITED STATES AND CANADAClass I, Division 1 and 2, Groups B, C & DClass II, Division 1 and 2, Groups E, F & GClass IIIClass I, Zone 1, Group IIB + H2 T6Tamb: -50°C to 71°CEnclosure Type 4X per UL 50 (USA), IP66 per EN 60529 (Canada)UL Listed (USA), cUL Listed (Canada)Pressure: 1203; CSA C22.2No. 25 & 30 - File # E40857Temperature: 1203; CSA C22.2No. 25 & 30 - File # E43374

Canadian registration number (CRN) for Canadian provincescan be found at www.ueonline.com

EUROPEATEX Directive (2014/34/EU)II 2 G Ex db IIC T6 GbII 2 D Ex tb IIIC T85°C Db IP66 Tamb = -40°C to +75°CUL International DEMKO A/S (N.B.# 0539)Certificate # DEMKO 09 ATEX 0815573XEN 60079-0, 60079-1, 60079-31II 1 G Ex ia IIC T6 Ga (OPTIONAL – code M405)(not available types 820E, 822E)Tamb = -50°C < Tamb < +60°CUL International DEMKO A/S (N.B.# 0539)Certificate # DEMKO 11 ATEX 1105261XEN 60079-0, 60079-11

Pressure Equipment Directive (PED) (2014/68/EU)Compliant to PED UL 508, UL 61010Products rated lower than 7.5 psi are outside the scope of the PED

Low Voltage Directive (LVD) (2014/35/EU)UEC compliant to LVD EN 61058-1, EN 61010-1Products rated lower than 50 VAC and 75 VDC are outside of the scope of the LVDThe Low Voltage Directive does not apply to products for use in hazardous locations

RUSSIA(OPTIONAL – code M406)Certificate ТС RU-C-US.ГБ05.B.01185NANIO CCVE CertifiedType 120, 121 and 1220Ex ia IIC T6 Ga XTamb:-50°C to + 60°CГОСТ Р МЭК 60079-11-2010; ГОСТ Р МЭК 60079-0-2011; ГОСТ 31610.26-2012/IEC 60079-26-2006Type 120, 121 and 122,820 &8221Ex d IIC T6 Gb XTamb:-40°C to + 75°CГОСТ IEC 60079-1-2011; ГОСТ Р МЭК 60079-0-2011

UKRAINEGosnadzorohrantruda Permit (OPTIONAL-code M404)СВIДОЦТВО #720 by DVSTS VE (TCCExEE)1ExdIICT6XTamb = -56°C to +85°C (types 120, 121 & 122)Tamb = -40°C to +71°C (types 820 & 822)ГOCT 12.2.007.0, ГOCT 22782.0, ГOCT 22782.6

CHINACQST Certified (OPTIONAL – code M408)(120,121,122)Pressure: CNEx15.2540X(120,121,122,820,822)Temperature: CNEx15.2541XEx d IIC T6 GbEx tD A21 T+85°C IP66Tamb. = -40°C to +75°CGB3836.1,GB3836.2 & GB12476.

UEdeclarationsandthird-partyissuedcertificationsareavailablefordownloadatwww.ueonline.com/certs


120 Series

INTERNATIONAL CERTIFICATION*(INCLUDES AUSTRALIA)IECEx Certified Ex d IIC T6 GbEx tb IIIC T85°C Db IP66Tamb. = -40°C to +75°CIEC 60079-0, 60079-1, 60079-31Certificate # IECEx UL 03.0001XEx ia IIC T6 GaIEC 60079-0, 60079-11Certificate # IECEx UL 14.0075X* See http://www.iecex.com/countries.htm for a list of partici-pating members.

INDIAEx d IIC T6 GbPESO: CCEs Identification# P314108/1EN 60079-0, 60079-1, 60079-31Ex ia IIC T6 Ga (OPTIONAL – code M405)PESO: CCEs Identification# P305465/1EN 60079-0, 60079-11

KOREAKOSHA, Article 34 of Industrial Safety and Health Law (OPTIONAL – code M395)Ex d IIC T6-40°C < Tamb < +75°CPressure: Certification# 10-AV4BO-0710 for J120, H121, H122, H122PDifferential Pressure: Certification# 10-AV4BO-0711 for J120K, H121K, H122KTemperature: Certification# 10-AV4BO-0712 for (B.E) (121, 122)/C120/F120Temperature Certification # 10-AV4BO-712 for 820E/822E

BRAZILINMETRO(OPTIONAL – code M391)Ex d IIC T6 GbEx tb IIIC T85°C Db IP66-40°C ≤ Ta ≤ +75°C UL-BR 15.0179XABNT NBR IEC 60079-0ABNT NBR IEC 60079-1ABNT NBR IEC 60079-31Ex ia IIC T6 Ga-50°C ≤ Ta ≤ +60°C UL-BR 15.0169XABNT NBR IEC 60079-0ABNT NBR IEC 60079-11ABNT NBR IEC 60079-26

TaiwanITRITemperature Switch - ML041200701BZ4Pressure Switch – ML041200701AE7,ML041200701BY3, ML041200701C40,ML041200701D31

agency approvals cont.


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pressure model chart

BunaNdiaphragmandO-Ringwithepoxycoatedaluminum,1/2”NPT(female)pressureconnection,large0.72"orificeforclean-outpurposes(otherwettedmaterialsavailableseepg.18)

520 300Vacto0 -746,7to0 0.2to8 0,5to19,9 100 6,9 100 6,9521 10Vacto10 -24,9to24,9 0.1to0.6 0,2to1,5 100 6,9 100 6,9522 50Vacto50 -124,5to124,5 0.1to3 0,2to7,5 100 6,9 100 6,9523 0.5to5 1,2to12,4 0.1to0.3 0,2to0,7 100 6,9 100 6,9524 2.5to50 6,2to124,5 0.1to0.8 0,2to2,0 100 6,9 100 6,9525 10to250 24,9to622,3 0.1to6 0,2to14,9 100 6,9 100 6,9

Welded316Lstainlesssteeldiaphragmand1/2”NPT(female)pressureconnection,large0.72"orificeforclean-outpurposes

530 300Vacto0 -746,7to0 0.2to15 0,5to37,3 50 3,4 100 6,9531 10Vacto10 -24,9to24,9 0.1to0.6 0,2to1,5 50 3,4 100 6,9532 50Vacto50 -124,5to124,5 0.1to3 0,2to7,5 50 3,4 100 6,9533 0.5to5 1,2to12,4 0.1to0.3 0,2to0,7 50 3,4 100 6,9534 2.5to50 6,2to124,5 0.1to0.8 0,2to2,0 50 3,4 100 6,9535 10to250 24,9to622,3 0.1to10 0,2to24,9 50 3,4 100 6,9

psi bar(unlessnoted) psi mbar(unlessnoted) psi bar psi bar

1.5”sanitarywelded316Lstainlesssteeldiaphragmandpressureconnection.MateswithTri-Clamp®fittingsystems,(notUEsupplied)

565 5to30 0,3to2,1 1to5 68,9mbarto0,3bar 1000 68,9 1500 103,4566 10to100 0,7to6,9 1to12 68,9mbarto0,8bar 1000 68,9 1500 103,4567 15to300 1,0to20,7 3to22 0,2to1,5 1000 68,9 1500 103,4

Welded316Lstainlesssteeldiaphragmand1/2”NPT(female)pressureconnection,large0.72”orificeforclean-outpurposes.NACEMR0175compliantwithM401option

171 1to20 68,9mbarto1,4bar 0.1to1 6,9to68,9 500 34,5 1000 68,9172 2to50 0,1to3,4 0.1to1.5 6,9to103,4 500 34,5 1000 68,9173 4to100 0,3to6,9 0.1to2.5 6,9to172,4 500 34,5 1000 68,9174 8to200 0,6to13,8 0.1to3.5 6,9to241,3 500 34,5 1000 68,9

• Type J120, single switch with internal adjustment, dual conduits

Application Note:Theuseofmetallicdiaphragmswherehigherpressureshockorheavycyclingisexpectedshouldbeavoided.Models171-174shouldnotbeusedwheresystemorstart-upvacuummightexceed26"HgVac*Over Range Pressure: Themaximumpressurethatmaybeappliedcontinuouslywithoutcausingdamageandmaintainingsetpointrepeatability.**Proof Pressure:Themaximumpressuretowhichapressuresensormaybeoccasionallysubjected,whichcausesnopermanentdamage.Theunitmayrequirecalibration(e.g.start-up,testing)

Model Adjustable Set Point Range Deadband Over Range Proof Lowendofrangeonfall; Pressure* Pressure** Highendofrangeonrise

“wc mbar “wc mbar psi bar psi bar


120 Series

• Type J120, single switch with internal adjustment, dual conduits (cont.)


psi bar psi bar psi bar psi bar (unlessnoted) (unlessnoted) (unlessnoted) (unlessnoted) (unlessnoted)

316Lstainlesssteeldiaphragm(optionalHastelloy®C276orMonel®400);Viton®GLTO-Ring(optionalKalrez®,EthylenePropyleneorAflas®);316stainlesssteel1/2”NPT(female)pressureconnection(optionalHastelloy®C276orMonel®400),0.72”orificeforclean-outpurposes.Models188and189havea316Lstainlesssteel1/2"NPT(female)pressureconnection.NACEMR0175compli-antwithM401option

183 1to20 0,1to1,4 0.3to2.5 20,7to172,4mbar 500 34,5 1000 68,9184 2to50 0,1to3,4 0.3to3 20,7to206,8mbar 500 34,5 1000 68,9185 4to100 0,3to6,9 0.5to6 34,5to413,7mbar 500 34,5 1000 68,9186 8to200 0,6to13,8 1to11 0,1to0,8 500 34,5 1000 68,9188 50to1000 3,4to68,9 25to125 1,7to8,6 2000 137,9 7000 482,6189 250to3500 17,2to241,3 50to300 3,4to20,7 4000 275,8 7000 482,6

316Lstainlesssteeldiaphragm(optionalHastelloy®C276orMonel®400);Viton®GLTO-Ring(optionalKalrez®,EthylenePropyleneorAflas®);316stainlesssteel1/2”NPT(female)pressureconnection(optionalHastelloy®C276orMonel®400),0.06"orificetodampenpul-sations.Models488and489havea316Lstainlesssteel1/2"NPT(female)pressureconnection.NACEMR0175compliantwithM401option

483 1to20 0,1to1,4 0.3to2.5 20,7to172,4mbar 500 34,5 1000 68,9484 2to50 0,1to3,4 0.3to3 20,7to206,8mbar 500 34,5 1000 68,9485 4to100 0,3to6,9 0.5to6 34,5to413,7mbar 500 34,5 1000 68,9486 8to200 0,6to13,8 1to11 0,1to0,8 500 34,5 1000 68,9488 50to1000 3,4to68,9 25to125 1,7to8,6 2000 137,9 7000 482,6489 250to3500 17,2to241,3 50to300 3,4to20,7 4000 275,8 7000 482,6

Welded316Lstainlesssteelbellowsand1/2”NPT(female)pressureconnection

S126B 30to3”HgVac -1to-0,1 0.2to0.6"Hg 6,8to20,3mbar 80"wc 199,1mbar 5 0,3S134B 30”HgVacto20psi -1to1,4 0.2to0.6"Hg 6,8to20,3mbar 20 1,4 25 1,7S137B 15to80”wc 37,3to199,1mbar 2to6"wc 5,0to14,9mbar 80"wc 199,1mbar 5 0,3S144B 0.5to20 34,5mbarto1,4bar 0.1to0.3 6,9to20,7mbar 20 1,4 25 1,7S152B 1to50 0,1to3,4 0.1to0.5 6,9to34,5mbar 50 3,4 75 5,2S156B 2to100 0,1to6,9 0.2to0.6 13,8to41,4mbar 100 6,9 125 8,6


Viton®, Kalzez®, and Teflon® are registered trademarks of E.I. duPont de Nemours and CompanyMonel® is a registered trademark of the Special Metals Corporation Tri-Clover and Tri-Clamp® is a registered trademark of Alfa LavalHastelloy® is a registered trademark of Haynes International, IncAflas® is a registered trademark of Asahi Glass


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psi bar psi bar psi bar psi bar (unlessnoted) (unlessnoted) (unlessnoted) (unlessnoted) (unlessnoted)

Brassbellowswithnickel-platedbrass1/4”NPT(female)pressureconnection;models126&134havezinc-platedsteelspringwhichisexposedtomedia

126 30to3”HgVac -1to-0,1 0.2to0.6”Hg 6,8to20,3mbar 80"wc 199,1mbar 5 0,3134 30”HgVacto20psi -1to1,4 0.2to0.6”Hg 6,8to20,3mbar 20 1,4 25 1,7137 15to80”wc 37,3to199,1mbar 2to6”wc 5,0to14,9mbar 80"wc 199,1mbar 5 0,3144 0.5to20 34,5mbarto1,4bar 0.1to0.3 6,9to20,7mbar 20 1,4 25 1,7152 1to50 0,1to3,4 0.1to0.5 6,9to34,5mbar 50 3,4 75 5,2156 2to100 0,1to6,9 0.2to0.6 13,8to41,4mbar 100 6,9 125 8,6164 4to200 0,3to13,8 0.2to1 13,8to68,9mbar 200 13,8 200 13,8

Welded316Lstainlesssteelbellowsand1/4”NPT(female)pressureconnection

356 15to100 1,0to6,9 0.7to1.8 48,3to124,1mbar 100 6,9 800 55,2358 15to200 1,0to13,8 1to6 0,1to0,4 200 13,8 800 55,2361 20to300 1,4to20,7 1to7 0,1to0,5 300 20,7 800 55,2376 25to500 1,7to34,5 1.5to8 0,1to0,6 500 34,5 800 55,2

Phosphorbronzebellowswithnickel-platedbrass1/4”NPT(female)pressureconnection

270 4to200 0,3to13,8 1to4 0,1to0,3 200 13,8 250 17,2274 6to300 0,4to20,7 1to5 0,1to0,3 300 20,7 350 24,1


*Over Range Pressure: Themaximumpressurethatmaybeappliedcontinuouslywithoutcausingdamageandmaintainingsetpointrepeatability. **Proof Pressure:Themaximumpressuretowhichapressuresensormaybeoccasionallysubjected,whichcausesnopermanentdamage.Theunitmayrequirecalibration(e.g.start-up,testing)Deadband note:Models190-194,490-494areexpressedasthelower75%andtop25%oftherangespanbecauseoftheoperatingcharacteristicsofthediaphragmsensorandswitch.


Model Adjustable Set Point Range Deadband Over Range Proof Lowendofrangeonfall; Pressure* Pressure**

Highendofrangeonrise Lower75%rangespan Top25%rangespan

psi bar psi bar psi bar psi bar psi bar

Welded316stainlesssteeldiaphragmand1/2”NPT(female)pressureconnection,large0.72”orificeforclean-outpurposes.NACEMR0175compli-antwithM401option(exceptmodel194)

190 5to30 0,3to2,1 1to3 0,1to0,2 6max 0,4 1500 103,4 2500 172,4191 10to100 0,7to6,9 1to8 0,1to0,6 15max 1,0 1500 103,4 2500 172,4192 15to300 1,0to20,7 3to18 0,2to1,2 25max 1,7 1500 103,4 2500 172,4193 20to500 1,4to34,5 4to30 0,3to2,1 45max 3,1 1500 103,4 2500 172,4194 80to1700 5,5to117,2 5to120 0,3to8,3 150max 10,3 2000 137,9 2500 172,4

Welded316stainlesssteeldiaphragmand1/2”NPT(female)pressureconnection,0.06”orificetodampenpulsations.NACEMR0175compliantwithM401option(exceptmodel494)

490 5to30 0,3to2,1 1to3 0,1to0,2 6max 0,4 1500 103,4 2500 172,4491 10to100 0,7to6,9 1to8 0,1to0,6 15max 1,0 1500 103,4 2500 172,4492 15to300 1,0to20,7 3to18 0,2to1,2 25max 1,7 1500 103,4 2500 172,4493 20to500 1,4to34,5 4to30 0,3to2,1 45max 3,1 1500 103,4 2500 172,4494 80to1700 5,5to117,2 5to120 0,3to8,3 150max 10,3 2000 137,9 2500 172,4


120 Series


psi bar psi bar psi bar psi bar

(unlessnoted) (unlessnoted) (unlessnoted) (unlessnoted) (unlessnoted)

303stainlesssteelpistonwithBunaNO-Ringand303stainlesssteel1/4”NPT(female)pressureconnection(notrecommendedforgasservicesincedryingoftheO-Ringsealcanallowbleedingofmediumintotheatmosphere)

612 125to3000 8,6to206,8 40to250 2,8to17,2 6000 413,7 10000 689,5616 700to5000 48,3to344,7 40to375 2,8to25,9 6000 413,7 10000 689,5

316stainlesssteelbellowsand1/4”NPT(female)pressureconnection(notrecommendedforrapidorhighcyclingpressurechanges)

680 100to1700 6,9to117,2 9to40 0,6to2,8 1700 117,2 2500 172,4

BunaNdiaphragmandO-Ringwithnickel-platedbrass1/4”NPT(female)pressureconnection;OptionalVitondiaphragmandO-Ringavail-able

701 1.5to30 103,4mbarto2,1bar 1to2 68,9mbarto0,1bar 500 34,5 1000 68.9

702 3to100 0,2to6,9 1to5 68,9to0,3bar 500 34,5 1000 68,9

703 9to300 0,6to20,7 1to7 68,9to0,5bar 500 34,5 1000 68,9704 15to500 1,0to34,5 2to11 0,1to0,8 1500 103,4 2500 172,4705 30to1000 2,1to68,9 3to22 0,2to1,5 1500 103,4 2500 172,4

BunaNdiaphragmandO-Ringwith1/4”NPT(female)stainlesssteelconnectionandcap

450 30”HgVacto3”HgVac -1to-0,1 0.1to0.3”Hg 3,4to10,2mbar 80"wc 199,1mbar 225 15,5452 30”HgVacto20psi -1,0to1,4 0.1to0.4”Hg 3,4to13,5mbar 20 1,4 225 15,5

BunaNdiaphragmandO-Ringwith1/4”NPT(female)aluminumconnectionandcap

451 2to80”wc 5to199,1mbar 0.8to2”wc 2to5mbar 80”wc 199,1mbar 225 15,5453 0.5to20 34,5mbarto1,4bar 0.05to0.1 3,4to6,9mbar 20 1,4 225 15,5454 0.8to30 55,2mbarto2,1bar 0.05to0.2 3,4to13,8mbar 30 2,1 225 15,5

Teflon®diaphragmandVitonO-Ringwith1/4”NPT(female)316stainlesssteelpressureconnectionandcap

550 30"HgVacto3"HgVac -1to-0,1 0.1to0.4"Hg 3,4to13,5mbar 80"wc 199,1mbar 225 15,5551 2to80”wc 5to199,1mbar 1to4"wc 2,5to10mbar 80"wc 199,1mbar 225 15,5552 30"HgVacto20psi -1,0to1,4 0.2to0.5"Hg 6,8to16,9mbar 20 1,4 225 15,5553 0.5to20 34,5mbarto1,4bar 0.1to0.2 6,9to13,8mbar 20 1,4 225 15,5554 0.8to30 55,2mbarto2,1bar 0.1to0.3 6,9to20,7mbar 30 2,1 225 15,5555 2to100 0,1to6,9 0.2to0.4 13,8to27,6mbar 100 6,9 225 15,5

*Over Range Pressure: Themaximumpressurethatmaybeappliedcontinuouslywithoutcausingdamageandmaintainingsetpointrepeatability.**Proof Pressure:Themaximumpressuretowhichapressuresensormaybeoccasionallysubjected,whichcausesnopermanentdamage.Theunitmayrequirecalibration(e.g.start-up,testing)




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Model Adjustable Set Point Range Adjustable Deadband Over Range Proof Lowendofrangeonfall; Pressure* Pressure** Highendofrangeonrise

psi bar psi bar psi bar psi bar

(unlessnoted)(unlessnoted) (unlessnoted) (unlessnoted) (unlessnoted)

Viton®diaphragmandO-ringwith1/4"NPT(female)316stainlesssteelpressureconnection

15622 20to200 1,4to13,8 12to26 0,8to1,8 500 34,5 1000 68,9

Lowend MidRange HighEnd

psi bar psi bar psi bar psi bar psi bar psi bar

BunaNdiaphragmandO-Ringwithnickel-platedbrass1/4"NPT(female)pressureconnection

15834 3to30 0,2to2,1 1.5to4 0,1to0,3 2to4.5 0,1to0,3 2.5to5 0,2to0,3 500 34,5 1000 68,915835 5to100 0,3to6,9 3to6 0,2to0,4 4to7.5 0,3to0,5 5to9 0,3to0,6 500 34,5 1000 68,915836 9to300 0,6to20,7 4to11 0,3to0,8 5to13 0,3to0,9 5to16 0,3to1,1 500 34,5 1000 68,915837 15to500 1to34,5 8to25 0,6to1,7 9to28 0,6to1,9 10to31 0,7to2,1 1500 103,4 2500 172,415838 30to1000 2,1to68,9 9to30 0,6to2,1 10to35 0,7to2,4 30to90 2,1to6,2 1500 103,4 2500 172,415839 100to1700 6,9to117,2 25to60 1,7to4,1 40to80 2,8to5,5 50to100 3,4to6,9 2000 137,9 2500 172,4

• Type J120, single switch with internal adjustment, dual conduits with adjustable deadband micro-switch†


*Over Range Pressure:Themaximumpressurethatmaybeappliedcontinuouslywithoutcausingdamageandmaintainingsetpointrepeatability.**Proof Pressure:Themaximumpressuretowhichapressuresensormaybeoccasionallysubjected,whichcausesnopermanentdamage.Theunitmayrequirecalibration(e.g.start-up,testing)

†Switch options listed on page 17-18 not available with these models

††Not available on type H122

• H121, single switch with external adjustment via reference dial, single conduit with adjustable deadband micro-switch

Model Adjustable Set Point Range Adjustable Deadband Proof Dial Lowendofrangeonfall; Pressure** Divisions Highendofrangeonrise

Lowend MidRange HighEnd

psi bar psi bar psi bar psi bar psi bar psi

303stainlesssteelpistonwithBunaNO-Ringand303stainlesssteel1/4"NPT(female)pressureconnection,includesadjustabledeadbandmicro-switch(notrecommendedforgasservicesincedryingoftheO-Ringsealcanallowbleedingofmediumintotheatmosphere)

15875†† 500to600034,5to413,7150to40010,3to27,6250to50017,2to34,5450to75031,0to51,710,000689,5100


120 Series

Model Adjustable Set Point Range Deadband Proof Dial Divisions Lowendofrangeonfall; Pressure** Highendofrangeonrise psi bar psi bar psi bar psi (unlessnoted) (unlessnoted) (unlessnoted) (unlessnoted) (unlessnoted)Welded316Lstainlesssteelbellowsand1/2”NPT(female)pressureconnection

S126B 30”HgVacto0psi -1to0 0.2to0.9”Hg 6,8to30,5mbar 5 0,3 0.5"HgS134B 30”HgVacto20psi -1to1,4 0.2to1.2”Hg 6,8to40,6mbar 25 1,7 1"Hg&0.5psiS137B† 2to80”wc 5to199,1mbar 2to10”wc 5to24,9mbar 5 0,3 2"wcS144B 0to20 0to1,4 0.1to0.5 6,9to34,5mbar 25 1,7 0.5S146B 0to30 0to2,1 0.1to0.6 6,9to41,4mbar 40 2,8 0.5S156B 0to100 0to6,9 0.2to0.8 13,8to55,2mbar 125 8,6 2S164B 0to200 0to13,8 0.3to2 20,7to137,9mbar 200 13,8 5

Brassbellowswithnickel-platedbrass1/4”NPT(female)pressureconnection;models126&134haveazinc-platedsteelspringwhichisexposedtomedia

126 30”HgVacto0psi -1to0 0.2to0.9”Hg 6,8to30,5mbar 5 0,3 0.5"Hg134 30”HgVacto20psi -1to1,4 0.2to1.2”Hg 6,8to40,6mbar 25 1,7 1”Hg&0.5psi137† 2to80”wc 5to199,1mbar 2to10”wc 5to24,9mbar 5 0,3 2”wc144 0to20 0to1,4 0.1to0.5 6,9to34,5mbar 25 1,7 0.5146 0to30 0to2,1 0.1to0.6 6,9to41,4mbar 40 2,8 0.5156 0to100 0to6,9 0.2to0.8 13,8to55,2mbar 125 8,6 2164 0to200 0to13,8 0.3to2 20,7to137,9mbar 200 13,8 5

316Lstainlesssteelbellowsand1/4”NPT(female)pressureconnection

358 0to200 0to13,8 1.5to8 0,1to0,6 250 17,2 5361 0to300 0to20,7 2to9 0,1to0,6 350 24,1 10376 0to500 0to34,5 3to12 0,2to0,8 575 39,6 10

303stainlesssteelpistonwithBunaNO-Ringand303stainlesssteel1/4”NPT(female)pressureconnection(notrecommendedforgasservicesincedryingoftheO-Ringsealcanallowbleedingofmediumintotheatmosphere)

612 200to3000 13,8to206,8 40to250 2,8to17,2 10,000 689,5 50614 500to6000 34,5to413,7 50to600 3,4to27,6 10,000 689,5 100

pressure model chart• Type H121, single switch with external adjustment via reference dial, single conduit

• Type H122, dual switch with external adjustment via reference dial, single conduit

**Proof Pressure:Themaximumpressuretowhichapressuresensormaybeoccasionallysubjected,whichcausesnopermanentdamage.Theunitmayrequirecalibration(e.g.start-up,testing)

†Not available on type H122


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Phosphorbronzebellowswithnickel-platedbrass1/4”NPT(female)pressureconnection

270 0to200 0to13,8 1.5to8 0,1to0,6 250 17,2 5274 0to300 0to20,7 2to10 0,1to0,7 350 24,1 10

BunaNdiaphragmandO-Ringwithstainlesssteel1/4”NPT(female)pressureconnectionandcap

450 30”HgVacto0psi -1to0 0.1to0.4”Hg 3,4to13,5mbar 225 15,5 0.5”Hg452 30”HgVacto20psi -1to1,4 0.1to1”Hg 3,4to33,9mbar 225 15,5 1”Hg&0.5psi

BunaNdiaphragmandO-Ringwithaluminum1/4”NPT(female)pressureconnectionandcap

453 0to20 0to1,4 0.05to0.2 3,4to13,8mbar 225 15,5 0.5454 0to30 0to2,1 0.05to0.3 3,4to20,7mbar 225 15,5 0.5

Teflon®diaphragmandVitonO-Ringwith316stainlesssteel1/4”NPT(female)pressureconnectionandcap

550 30”HgVacto0psi -1to0 0.1to0.6”Hg 3,4to20,3mbar 225 15,5 0.5”Hg552 30”HgVacto20psi -1to1,4 0.2to1”Hg 6,8to33,9mbar 225 15,5 1”Hg&0.5psi553 0to20 0to1,4 0.05to0.3 3,4to20,7mbar 225 15,5 0.5554 0to30 0to2,1 0.1to0.4 6,9to27,6mbar 225 15,5 0.5555 0to100 0to6,9 0.25to0.75 17,2to51,7mbar 225 15,5 2

BunaNdiaphragmandO-Ringwithnickel-platedbrass1/4”NPT(female)pressureconnection;OptionalVitondiaphragmandO-Ringavailable(models701-703)

701† 3to30 0,2to2,1 1to3 0,1to0,2 1000 68,9 0.5702 10to100 0,7to6,9 1to5 0,1to0,3 1000 68,9 2703 30to300 2,1to20,7 2to7 0,1to0,5 1000 68,9 10704 50to500 3,4to34,5 3to12 0,2to0,8 2500 172,4 10705 200to1000 13,8to68,9 5to25 0,3to1,7 2500 172,4 25


†Not available on type H122

• Type H121, single switch with external adjustment via reference dial, single conduit

• Type H122, dual switch with external adjustment via reference dial, single conduit

Model Adjustable Set Point Range Deadband Proof Dial Divisions Lowendofrangeonfall; Pressure** Highendofrangeonrise

psi bar psi bar psi bar psi (unlessnoted) (unlessnoted) (unlessnoted) (unlessnoted)



120 Series

differential pressure model chart

Model Adjustable Set Point Range Deadband Working Proof Lowendofrangeonfall; Pressure*** Pressure** Highendofrangeonrise

psid bar psi bar psi bar psi bar (unlessnoted) (unlessnoted) (unlessnoted) (unlessnoted) (unlessnoted)

Welded316Lstainlesssteelbellowsand1/2”NPT(female)pressureconnections

S147B 3to30 0,2to2,1 0.3to1.5 20,7to103,4mbar 30”HgVacto100 -1to6,9 300 20,7S157B 10to100 0,7to6,9 0.5to2 34,5to137,9mbar 30”HgVacto180 -1to12,4 300 20,7

Weldedbrassbellowswithnickel-platedbrass1/4”NPT(female)pressureconnections

147 3to30 0,2to2,1 0.3to1.5 20,7to103,4mbar 30”HgVacto100 -1to6,9 180 12,4157 10to100 0,7to6,9 0.5to2 34,5to137,9mbar 30”HgVacto150 -1to10,3 180 12,4


367 10to100 0,7to6,9 4to10 0,3to0,7 0to350 0to24,1 500 34,5

BunaNdiaphragmandO-Ringwith316stainlesssteel1/4”NPT(female)pressureconnections

36 3to30 0,2to2,1 1to5 0,1to0,3 0to350 0to24,1 1000 68,937 10to100 0,7to6,9 2to8 0,1to0,6 0to500 0to34,5 1000 68,938 30to300 2,1to20,7 2to15 0,1to1,0 0to1000 0to68,9 2500 172,439 50to500 3,4to34,5 3to20 0,2to1,4 0to1000 0to68,9 2500 172,4

BunaNdiaphragmandO-Ringwithaluminum1/4”NPT(female)pressureconnections

455 5to80”wcd 12,4to199,1mbar 1to4”wc 2,5to10mbar 30”HgVacto225 -1to15,5 225 15,5456 2to20 0,1to1,4 0.1to0.3 6,9to20,7mbar 30”HgVacto225 -1to15,5 225 15,5457 3to30 0,2to2,1 0.1to0.4 6,9to27,6mbar 30”HgVacto225 -1to15,5 225 15,5

Teflon®andBunaNdiaphragms,BunaNO-Ringwithaluminum1/4”NPT(female)pressureconnections

559 10to100 0,7to6,9 0.2to1 13,8to68,9mbar 30”HgVacto225 -1to15,5 225 15,5

BunaNdiaphragmandsealingdiaphragmswithaluminum1/8”NPT(female)pressureconnections

540 0.2to7“wcd 0,5to17,4mbar 0.05to0,6“wc 0,1to1,5mbar 30”Hgto200 -1to13,8 400 27,6541 1to20“wcd 2,5to49,8mbar 0.1to1.0“wc 0.2to2,5mbar 30”Hgto200 -1to13,8 400 27,6542 5to50“wcd 12,4to124,5mbar 0.2to2.5“wc 0,5to6,2mbar 30”Hgto200 -1to13,8 400 27,6543 10to200“wcd 24,9to497,8mbar 0.5to8“wc 1,2to19,9mbar 30”Hgto200 -1to13,8 400 27,6544 2to20 0,1to1,4 0.1to1.3 6,9to89,6mbar 30”Hgto1200 -1to82,7 2500 172,4545 5to50 0,3to3,4 0.2to2.2 13,8mbarto0,1bar 30”Hgto1200 -1to82,7 2500 172,4546 10to125 0,7to8,6 0.4to5.0 27,6mbarto0,3bar 30”Hgto1200 -1to82,7 2500 172,4547 50to250 3,4to17,2 0.8to10 0,1to0,7 30”Hgto1200 -1to82,7 2500 172,4548 100to500 6,9to34,5 2.0to15 0,1to1,0 30”Hgto1200 -1to82,7 2500 172,4

**Proof Pressure:Themaximumpressuretowhichapressuresensormaybeoccasionallysubjected,whichcausesnopermanentdamage.Theunitmayrequirecalibration(e.g.start-up,testing)***Working Pressure Range: Thepressurerangewithinwhichtwoopposingsensorscanbesafelyoperatedandstillmaintainsetpointadjustability.

• Type J120K, single switch with internal adjustment, dual conduits


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Model Adjustable Set Point Range Deadband Working Proof Dial Lowendofrangeonfall; Pressure*** Pressure** Divisions Highendofrangeonrise

psid bar psi mbar psi bar psi bar psi (unlessnoted)


S147B 3to30 0,2to2,1 0.3to2 20,7to137,9 30”HgVacto100 -1to6,9 300 20,7 0.5S157B 10to100 0,7to6,9 0.5to3 34,5to206,8 30”HgVacto180 -1to12,4 300 20,7 2

Brassbellowswithnickel-platedbrass1/4”NPT(female)pressureconnections

147 3to30 0,2to2,1 0.3to2 20,7to137,9 30”HgVacto100 -1to6,9 180 12,4 0.5157 10to100 0,7to6,9 0.5to3 34,5to206,8 30”HgVacto150 -1to10,3 180 12,4 2

BunaNdiaphragm,O-Ringwithaluminum1/4”NPT(female)pressureconnections

456 2to20 0,1to1,4 0.1to0.3 6,9to20,7 30”HgVacto225 -1to15,5 225 15,5 0.5457 3to30 0,2to2,1 0.1to0.4 6,9to27,6 30”HgVacto225 -1to15,5 225 15,5 0.5

Teflon®andBunaNdiaphragms,BunaNO-Ringwithaluminum1/4”NPT(female)pressureconnections

559 10to100 0,7to6,9 0.2to1 13,8to68,9 30”HgVacto225 -1to15,5 225 15,5 2


***Working Pressure Range: Thepressurerangewithinwhichtwoopposingsensorscanbesafelyoperatedandstillmaintainsetpointadjustability.

• Type H121K, single switch with external adjustment dial via reference dial, single conduit

• Type H122K, dual switch with external adjustment dial via reference dial, single conduit

differential pressure model chart

DifferentialPressureIndicatingOptionM210


120 Series

Model Adjustable Set Max. Temp. Scale Div. Stem or Bulb Size*/Finish** Point Range

°F °C °F °C °F °C ODxLength

TypeB121,singleswitch,immersionstem,externaladjustmentviareferencedial.TypeB122,dualswitch,immersionstem,externaladjustmentviareferencedial.TypeC120,singleswitch,immersionstem,internaladjustment

120 0to225 -17.8to107.2 275 135 5† 5† 9/16"x1-7⁄8"belowthread,1/2"NPT nickel-platedbrass121 200to425 93.3to218.3 475 246.1 5† 5† 9/16"x1-7⁄8"belowthread,1/2"NPT nickel-platedbrass13272(B121) 15to140 -9.4to60 160 71.1 2† 2† 9/16"x2-11⁄16"longstainlesssteel13322(B122)(HeatTracing)

TypeE121,singleswitch,bulbandcapillary,externaladjustmentviareferencedial.TypeE122,dualswitch,bulbandcapillary,externaladjustmentviareferencedial

2BSA -120to100 -84.4to37.8 150 65.6 5 5 3/8x2-5/8"2BSB 30to250 -1.1to121.1 300 148.9 5 5 3/8x2-5/8"3BS 100to400 37.8to204.4 450 232.2 5 5 3/8x2-1⁄8"4BS 25to100 -3.9to37.8 150 65.6 2 1 3/8x6-3⁄4"5BS -20to80 -28.9to26.7 130 54.4 2 2 3/8x5"8BS 350to640 176.7to337.8 690 365.6 5 5 3/8x3-1⁄4"13273(E121) 25to325 -3.9to162.8 360 182.2 5 5 1/4"x9-1⁄2"13321(E122)(HeatTracing)

TypeF120,singleswitch,bulbandcapillary,internaladjustment

2BS -125to350 -87.2to176.7 400 204.4 N/A 3/8x2-5/8"3BS -125to500 -87.2to260 550 287.8 N/A 3/8x2-1⁄8"4BS -40to120 -40to48.9 170 76.7 N/A 3/8x6-3⁄4"5BS -40to180 -40to82.2 230 110 N/A 3/8x5"6BS 0to250 -17.8to121.1 300 148.9 N/A 3/8x4-1⁄2"7BS 0to400 -17.8to204.4 450 232.2 N/A 3/8x3"8BS 50to650 10to343.3 700 371.1 N/A 3/8x3-1⁄4"

†TypesB121,B122only.

*Optional immersion stemlengthsandcapillarylengthsareavailable–consultUE.Standardcapillarylengthis6FTexceptHTFPmodelswhichare10FT.

**Optional stainlesssteelimmersionstem,andstainless steelarmored or Teflon covered capillary available–consultUE.

temperature model chart• Type B121, single switch, immersion stem, external adjustment via reference dial, single conduit

• Type B122, dual switch, immersion stem, external adjustment via reference dial, single conduit

• Type C120, single switch, immersion stem, internal adjustment , dual conduits

• Type E121, single switch, bulb and capillary, external adjustment via reference dial, single conduit

• Type E122, dual switch, bulb and capillary, external adjustment via reference dial, single conduit

• Type F120, single switch, bulb and capillary, internal adjustment, dual conduits


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indicating temperature control model chart

Explosionproofindicatingtemperatureswitch,availablewithsingleordualsetpoints

• Type 820E, single switch, external adjustment and temperature indication, dual conduits

• Type 822E, dual switch, external adjustment and temperature indication, dual conduits

Model Adjustable Set Point Range Max. Temp. Scale Div. Bulb Size

°F °C °F °C °F °C ODxLength

2BS -125to350 -87.2to176.7 400 204.4 10 5 3/8x2-5/8”

3BS -125to500 -87.2to260 550 287.8 10 5 3/8x2-1/8”

4BS -40to120 -40to48.9 170 76.7 5 2 3/8x6-3/4”

5BS -40to180 -40to82.2 230 110 5 2 3/8x5”

6BS 0to250 -17.8to121.1 300 148.9 5 2 3/8x4-1/2”

7BS 0to400 -17.8to204.4 450 232.2 10 5 3/8x3”

8BS 50to650 10to343.3 700 371.1 10 10 3/8x3-1/4”

Standard capillary length is 6ft. optional lengths and capillary protection available – consult UE.


120 Series

TYPE DESCRIPTION Pressure TypeJ120-OneSPDT;epoxycoatedenclosure;internaladjustmentwithnoreferencescale,dualconduits

TypeH121-OneSPDT;epoxycoatedenclosure;externaladjustmentwith reference dial,singleconduit

TypeH122-TwoSPDT;epoxycoatedenclosure;externaladjustmentwith reference dial,singleconduit

DifferentialPressure TypeJ120K-OneSPDT;epoxycoatedenclosure;internaladjustmentwithno reference scale,dualconduits

TypeH121K-OneSPDT;epoxycoatedenclosure;externaladjustmentwith reference dial,singleconduit

TypeH122K-TwoSPDT;epoxycoatedenclosure;externaladjustmentwith reference dial,singleconduit

Temperature TypeB121-Immersionstem;oneSPDT;epoxycoatedenclosure;externaladjustmentwith reference dial,singleconduit

TypeB122-Immersionstem;twoSPDT;epoxycoatedenclosure;externaladjustmentwith reference dial,singleconduit

TypeC120-Immersionstem;oneSPDT;epoxycoatedenclosure;internaladjustmentwithno reference scale,dualconduits

TypeE121-Bulbandcapillary;oneSPDT;epoxycoatedenclosure;externaladjustmentwith reference dial,singleconduit

TypeE122-Bulbandcapillary;twoSPDT;epoxycoatedenclosure;externaladjustmentwith reference dial,singleconduit

TypeF120-Bulbandcapillary;oneSPDT;epoxycoatedenclosure;internaladjustmentwithno reference dial,dualconduits

Type820E-Bulbandcapillary;oneSPDT;externaladjustmentandtemperatureindication,dualconduits

Type822E-Bulbandcapillary;twoSPDT;externaladjustmentandtemperatureindication,dualconduits

SWITCH OPTIONS 1, 2, 3

0140 Goldcontacts,1A125VACresistive,NOTAVAILABLETYPE820E&822E

0500 Closedeadband.5A125/250VACresistive.3A,28VDC;1A,48VDC;0.5A,125VDCresistive.NOTAVAILABLETYPES

820E,822EANDMODELS520-535,540-548

1010 DPDTswitch10A125/250VACresistive.0.5A,125VDC;0.25A,250VDCresistive.Deadbandandminimumsetpointwill

increase.NOTAVAILABLETEMPERATUREVERSIONS;TYPESH122,H122K;ORMODELS36-39,367AND540-548;OR

J120MODELS171-194,483-494,520-535,565-567,680.

1070 10A,125VACandVDCresistive.Deadbandandminimumsetpointwillincrease.NOTAVAILABLETYPES820E,822E,H122K,

B122,ANDJ120KMODELS36-39,367AND540-548;ORJ120MODELS171-194,483-494,520-535,565-567,680.

1180 Hermeticallysealedwithgoldflashcontacts.SPDT.11A125/250VACresistive.5A,30VDC;1A,48VDC;0.5A,125VDCresis-

tive.Deadbandandminimumsetpointwillincrease.NOTAVAILABLETYPESB122,E122,H122,H121K,H122K,820AND822E.

1190 Hermeticallysealedwithgoldflashcontacts.DPDT.11A,125/250VACresistive.5A,30VDC;1A,48VDC;0.5A,125VDCresis-

tive.Productssetonrisingpressureortemperatureduetoinherentseparationofcircuitsonfallingpressureortemperature.Specify

option1195ifsettingonfallisrequired.Deadbandandminimumsetpointwillincrease.NOTAVAILABLETYPES820E,822E,

B122,E122,H122,H121K,H122K.

1 AllswitcheshavelimitedDCcapabilities.VDCratingsarenotlistedonnameplates.Consultfactoryfordetails.

2Deadbandschangewhenswitchoptionsareadded.Consultfactoryfordetails.

3Notavailableformodels15622,15834-15839,15875,13272,13273,13321and13322.

how to orderBUILDING A PART NUMBER

Selecta Type SelectaModel SelectanOption

Refertothe“Type”sectionbelow.

Determinetypenumberbasedonswitchoutput,enclosure,adjustmentandreference.

Fillinthetypeportionofyourpartnumberwiththecorrespondingnumber.

Refertothe“ModelCharts”

Determinemodelbasedonadjustablerange,deadbandandproofpressure.

Fillinthemodelportionofyourpartnum-berwiththecorrespondingnumber.

Refertothe“Options”section

Determineoptionnumberbasedonswitchoutput,optionalmaterialsorotherproductenhancements.

Fillintheoptionportionofyourpartnumberwiththecorrespondingnumber.

Leave“option”portionblankifnooptionsareneeded.FORMULTIPLEOPTIONS:CallUnitedElectricControls.


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1195 Hermeticallysealedwithgoldflashcontacts.DPDT.11A125/250VACresistive.5A,30VDC;1A,48VDC;0.5A,

125VDCresistive.Productssetonfallingpressureortemperatureduetoinherentseparationofcircuitsonrising

pressureortemperature.Specifyoption1190ifsettingonriseisrequired.Deadbandandminimumsetpointwill

increase.NOTAVAILABLETYPES820E,822E,B122,E122,H122,H121K,H122K.

1519* Adjustabledeadband.15A,125/250/480VACresistive.0.5A,125VDC;0.25A,250VDCresistive.Adjustable

wheelchangesrisesettingonly.Ifadjustmentfallsettingisrequireduseprimaryadjustment.Deadbandandmini

mumsetpointwillincrease.NOTAVAILABLETYPES820E,822E,B121,E121,E122,H121,H122,H121K,H122K,

ORMODELS171-194,483-494,520-535,565-567,612-616.

1535 Highambient.15A,125/250/480VACresistive.0.5A,125VDC;0.25A,250VDCresistive.Temperaturesupto

250°F(120°C).NOTAVAILABLETYPES820E,822E,MODELS520-535.

1537 Vaporsealedswitch.15A,125/250VACresistive.NOTAVAILABLETYPES820E,822E,ORMODELS

520-535.

1539 Fungusresistantcase.15A,125/250VACresistive.0.5A,125VDC;0.25A,250VDCresistive.NOTAVAILABLE

TYPES820E,822E,ORMODELS520-535.

2000 20A,125/250/480VACresistive.0.5A,125VDC;0.25A,250VDCresistive.NOTAVAILABLEMODELS

520-535,540-548.

3000 30A,125/250/277VACresistive.NOTAVAILABLETYPES820E,822E,B121,B122,E122,H121,H122,H121K,

H122K,J120KORMODELS171-194,483-494,520-535,540-548,565-567.

SENSOR OPTIONS

M504 316Lstainlesssteelstem.AVAILABLETEMPERATUREMODELS120AND121ONLY

M540 Viton®wettedpartswithstandardpressureconnection.Deadbandsandlowendofrangemayincrease.AVAILABLE

MODELS36-39,450-454,540-548.Models455-457(Viton®sealingdiaphragmsandO-ringswithTeflon®main

diaphragm).Models612-616(O-Ringonly).AVAILABLETYPEJ120MODELS701-705andTYPESH121andH122

MODELS701-703withstainlesssteelpressureconnection.

M913 1/4"NPT(female)stainlesssteelpressureconnection.AVAILABLEONMODELSS126B-S146B,S152B,S156B,

S164B,188AND189ONLY

M914 1/2"NPT(female)stainlesssteelpressureconnection.AVAILABLEONMODELS356,358,361,376,612AND616

ONLY

6361-762 1/2"NPTmaletoG1/2malestainlesssteelpressurefittingadaptorkit

6361-761 1/4"NPTmaletoG1/2malestainlesssteelpressurefittingadaptorkit

OPTIONAL SENSOR MATERIAL FOR "WC RANGES. AVAILABLE MODELS 520-525

XC001 Aluminumpressureconnection,Viton®diaphragm,Viton®O-Ring

XC002 Aluminumpressureconnection,Kapton®diaphragm,BunaNO-Ring

XC003 Aluminumpressureconnection,Kapton®diaphragm,Viton®O-Ring

XC004 316LStainlesssteelpressureconnection,316LStainlesssteeldiaphragm,Viton®O-Ring

(Overrangepressureislimitedto100psi)

XC005 316LStainlesssteelpressureconnection,Viton®diaphragm,Viton®O-Ring

XC007 316LStainlesssteelpressureconnection,Teflon®diaphragm,Viton®O-Ring

OPTIONAL SENSOR MATERIAL FOR CORROSIVE MEDIA. AVAILABLE MODELS 183-189, 483-489

XD002 Hastelloy®C276diaphragmNACEMR0175compliantwithM401option

XD003 Monel®400diaphragmNACEMR0175compliantwithM401option*Please note: Inordertoaccommodatefreemovementofadjustablewheel,lefthandelectricalconduitispermanentlysealed.** AllswitcheshavelimitedDCcapabilitiesandarebasedonexperience.VDCratingsarenotlistedonnameplates.Consultfactoryfordetails.


120 Series

OPTIONAL SENSOR MATERIAL FOR CORROSIVE MEDIA (CONT.)

XP112 Hastelloy®C276pressureconnectionNACEMR0175compliantwithM401option

XP113 Monel®400pressureconnectionNACEMR0175compliantwithM401option

XR211 Kalrez®O-Ring

XR213 EthylenepropyleneO-Ring

XR214 Aflas®O-Ring

OTHER OPTIONS

M201 Factorysetoneswitch

M202 Factorysettwoswitches.NOTAVAILABLESINGLESWITCHVERSIONS

M210 Differentialpressureindication.AVAILABLEONH121K,H122K,MODELS147,157,S147B,S157BONLY

M277 RangeindicatedonnameplateinkPaorMPa.NOTAVAILABLEONTEMPERATUREVERSIONS

M278 RangeindicatedonnameplateinKg/cm2.NOTAVAILABLEONTEMPERATUREVERSIONS

M320 Tamperresistantcoverforindicationportionofcontrol,internaladjustment.AVAILABLETYPES820EAND822EONLY

M391 Flameproof,intrinsicsafetyforINMETROcompliance.

M395 FlameproofcomplianceExdperKoreaOccupationalSafetyandHealthAgency(KOSHA)

M400 SIL2Certification.Consultfactoryforavailableswitch/sensoroptions.

M401 NACEMR0175wettedmaterialcompliance.AVAILABLEMODELS171-174,183-186,188-189,190-193,483-486,

488-489,490-493.Consultfactoryfordetailsonrepeatability,deadband,andoverpressurelimits.

M404 FlameproofcomplianceforUkraineperGosnadzorohrantrudapermits.

M405 IntrinsicsafetycomplianceforEuropeanUnionperATEXstandards.NOTAVAILABLETYPES820EAND822E

M406 FlameproofandintrinsicsafetycomplianceforRussiaperEACpermit.IntrinsicsafetyNOTAVAILABLE

TYPES820E&822E

M408 FlameproofcomplianceforChinaperCQSTstandards

M444 PaperIDtag

M446 StainlesssteelIDtag&wireattachment;limitedto2linesof25characterseachmax.

M449 Surfaceandpipemountinghardwareoptionformodels520to535&540to548.Forallothermodelsusethe

mountinghardwarekit#6361-704

M550 OxygenservicecleanedinaccordancewithASTMG93,VerificationTypeI,Tests1through3.NOTAVAILABLEon

H122,orMODELS455-457,559,704and705

6361-704 Surfaceandpipemountinghardwarekitforallmodels.Requiredforsurfacemountingmodels520-535&540-548if

notpreviouslyorderedwithoptionM449.

NOTE:Optionsavailableonmodels13272,13273,13321,13322,15622,15834-15839and15875areM201,M202,M444,M446and

variouscertificationrelateddocumentationonly.


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options for temperature models

UNION CONNECTORS Option Replacement Number Description BrassW027 SD6213-27 1⁄2”NPTw/3⁄4”bushingW045 SD6213-45 3⁄4”NPTW051 SD6213-51 1⁄2”NPT 304StainlessSteelW028 SD6213-28 1⁄2”NPTw/3⁄4”bushingW046 SD6213-46 3⁄4”NPTW050 SD6213-50 1⁄2”NPTTHERMOWELLS For all bulb & capillary switches, except Models 13273 and 13321 Brass W075 SD6225-75 3⁄4”NPTbushingadapter,4”BTW191 SD6225-191 1⁄2”NPT,4”BTW118 SD6225-118 3⁄4”NPTbushingadapter,7”BTW192 SD6225-192 1⁄2”NPT,7”BT 316StainlessSteelW076 SD6225-76 3⁄4”NPT,4.5”BT W193 SD6225-193 1⁄2”NPT,4.5”BT W119 SD6225-119 3⁄4”NPT,7.5”BT W177 SD6225-177 1⁄2”NPT,7.5”BT For all immersion stem switches, except Models 13272 and 13322 W139 SD6225-139 3⁄4”NPTX1-23/32”BT,BRASS W140 SD6225-140 3⁄4”NPTX1-23/32”BT,316ST/ST

W000 IMMERSION STEM AND THERMOWELLS Note:OptionW000isaspecialImmersionStemconstructionthathasnoexternalthread.Thisoptionfitsinsideaspecialthermowellandissecuredwithaset-screw.

Option Description

W000 Immersionstemonly,BRASSW097 Immersionstemandthermowell.IncludesW000stemand1⁄2”NPTx1-23⁄32"BTBRASSthermowellW099 Immersionstemandthermowell.IncludesW000stemand1⁄2”NPTx1-23⁄32"BT316ST/STthermowell

OPTIONAL LENGTHS Optionalimmersionstemlengthsto15"maybeavailableinbrass,withorwithout316ST/STthermowell.ConsultUEforavail-ability.

Optionalcapillarylengthto*50'maybeavailableincopperor304ST/ST.ConsultUEforavailability.ArmororTeflon®capil-laryprotectionmaybeavailabletolengthslessthanorequaltocapillarylength.ConsultUEforavailability.

*ConsultUEregardingrepeatabilityandambienteffectsoncapillarylengthsover30'.


120 Series

Alldimensionsstatedininches(millimeters)

Dimension AModels Inches mm NPT

Pressure

126-164 7.25 184.2 1/4

S126B-S164B 7.63 193.8 1/2

171-174 8.72 221.5 1/2

183-186,483-486 8.41 213.6 1/2

188-189,488-489 7.47 189.7 1/2

190-194,490-494 7.44 189.0 1/2

270-274 8.13 206.5 1/4

356-361,376 8.09 205.5 1/4

450,452 8.81 223.8 1/4

451,453,454 8.06 204.7 1/4

520-525 9.25 235.0 1/2

530-535 8.84 224.5 1/2

550,552 8.81 223.8 1/4

551,553-555 8.34 211.8 1/4

565-567 7.53 191.3 1-1/2”Sanitary

612,616 7.88 200.2 1/4

680 8.13 206.5 1/4

701-705,15622 7.44 189.0 1/4

Differential Pressure

36-39,147-157,367 7.59 192.8 1/4

S147B-S157B 7.59 192.8 1/2

455-457,559 8.44 214.4 1/4

540-543 9.34 237.2 1/8

544-548 9.41 239.0 1/8

Temperature

120-121 9.13 231.9 ImmersionStem

2BS-8BS 8.47 215.1 Bulb&capillary

dimensional drawings(Dimensionaldrawingsforallmodelsmaybefoundatwww.ueonline.com)

Internal Set Point Adjustment, dual conduits

Types J120, J120K, C120, F120


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External Set Point Adjustment, single conduit

Types B121, B122, E121, E122, H121, H122, H121K, H122K

Dimension A

Models Inches mm NPT

Pressure

126-164 8.09 205.5 1/4

S126B-S164B 8.50 215.9 1/2

270-274 7.88 200.2 1/4

358-376 7.81 198.4 1/4

450,452 9.69 246.1 1/4

453,454 8.94 227.1 1/4

550,552 9.75 247.7 1/4

553-555 9.31 236.5 1/4

612,614 8.75 222.3 1/4

701-705 8.31 211.1 1/4

Differential Pressure

147-157 8.44 214.4 1/4

S147B-S157B 8.44 214.4 1/2

456-457,559 9.31 236.5 1/4

Temperature

120,121 10.00 254.0 ImmersionStem

2BS-8BS 9.31 236.5 Bulb&capillary

13272,13322 10.00 254.0ImmersionStem(Heattracing)

13273,13321 9.31 236.5Bulb&capillary(Heattracing)


120 Series


External Set Point Adjustment & Temperature Indication

Type 820Esingle switch

Type 822Edual switch

Dimension A

Models Inches mm

2BS 2-5/8 66.7

3BS 2-1/8 54,0

4BS 6-3/4 171,5

5BS 5 127,0

6BS 4-1/2 114,3

7BS 3 76,2

8BS 3-1/4 82,6


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Pressure Sensors (see drawings and charts on page 21 & 22 for complete dimensions)

dimensional drawings

SENSORS

Models 126-164

Models 183-186, 483-486 Models 188-194, 488-494 J120 Models 270-376, 680

Models S126B-S164B Models 171-174


120 Series

H121/H122 Models 270-376

Models 612-616, 701-705, 15622

Models 450-454, 550-555

Models 530-535

Models 520-525

Models 565-567

Pressure Sensors (see drawings and charts on page 21 & 22 for complete dimensions)


SENSORS


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Differential Pressure Sensors (see drawings and charts on page 21 & 22 for complete dimensions)

Models 455-457, 559

Models 544-548Models 540-543Models 147-157

J120K Models 36-39

J120K Models 367

Models S147B-S157B


SENSORS

Models 2BS-8BS, 13273, 13321

Models 120-121, 13272*, 13322*

Temperature Sensors (See drawings and charts on pages 21-23 for complete dimensions, as well as Temperature Model Chart on pages 15-16 for immersion stem and bulb dimensions. The standard capillary length is 6 feet except for models 13273 & 13321 which is 10 feet)

*Please Note: These models do not include the 1/2 NPT


120 Series

alternative products from ue

One Series Safety Transmitter for Division 1 (Zone 1)

• ImproveUptimewith safety diagnostics• Capableofswitchingthefinalelementdirectly• MeetregulatoryrequirementswithSIL2IEC61508certification• SimplifycomplexsafetysystemswithSFF=98.8• Reducemigrationcostswithbackwardandforwardcompatability

Vanguard Gas Detector –ToxicandCombustibleGasDetector

• WirelessHARTCommunication• 5+yearbatterylife*• Fieldinterchangeabletoxicandcombustiblegassensors• InteroperablewithexistingWirelessHARTnetworksandasset

managementsystems(AMS)• Easycalibrationandoperation• HeavydutydesignwithClass1,Div1&2hazardouslocationapprovals

*Affectedbypollingfrequency

Stainless Steel 12 Series

• Compact,cylindrical316stainlesssteeldesign• Hermeticallysealedmicro-switch• ExplosionProof• Snap-actingbellevillespringmechanismformaximumvibrationresistanceandsetpointstability

• Pressureranges1to12,500psi;DPworkingpressureranges0to2500psid;temperatureranges-130to650°F

• DualsealcompliancetoANSI/ISA12.27.01

One Series for Division 1 & 2 (Zone 0, 1, 2)

• Easyandsecureprogrammingvialocalkeypadorread-onlyremoteHART®7communications

• Money-savingdrop-inreplacementformechanicalswitchesusingthe2-wireswitch-onlyversion

• AchievehighreliabilitythroughIAW™self-diagnosticsandseparatealarmcontact

• GainAssetManagementdatathroughHART7reporting• Acomplete,flexiblesolution–4-20mAfortrendingplus2relays

forlocalswitching-allaccessibleviaHART®7CommunicationsProtocol

Temperature Sensors

RuggedRTD’sandThermocouplesforprocessandenergyapplications,availablewithNema4Xandexplosion-proofheadstomatchheat-trace,turbine,combustion,andstack-emissionapplications

HART®isaregisteredtrademarkoftheHARTCommunicationFoundation.

DUAL SEALCERTIFIED

DUAL SEALCERTIFIED

CP05113500

180DexterAvenueWatertown,MA02472USATelephone:617926-1000Fax:617926-2568www.ueonline.com

RECOMMENDED PRACTICES AND WARNINGS

UnitedElectricControlsCompany recommendscareful considerationof the following factors when specifying and installing UE pressureand temperature units. Before installing a unit, the Installationand Maintenance instructions provided with unit must be read andunderstood.

• Toavoiddamagingunit,proofpressureandmaximumtemperaturelimits stated in literature and on nameplates must never beexceeded,evenbysurgesinthesystem.Operationoftheunituptomaximumpressureor temperature isacceptableona limitedbasis(e.g., start-up, testing)but continuousoperationmustbe restrictedto thedesignatedadjustable range. Excessive cyclingatmaximumpressureortemperaturelimitscouldreducesensorlife.

• A back-up unit is necessary for applications where damage toa primary unit could endanger life, limbor property. A high orlowlimitswitchisnecessaryforapplicationswhereadangerousrunawayconditioncouldresult.

• The adjustable range must be selected so that incorrect,inadvertentormalicioussettingatanyrangepointcannotresultinanunsafesystemcondition.

• Install unit where shock, vibration and ambient temperaturefluctuations will not damage unit or affect operation. Whenapplicable, orient unit so that moisture does not enter theenclosure via the electrical connection. When appropriate, thisentrypointshouldbesealedtopreventmoistureentry.

• Unitmustnotbealteredormodifiedaftershipment.ConsultUEifmodificationisnecessary.

• Monitoroperationtoobservewarningsignsofpossibledamageto unit, such as drift in set point or faulty display. Check unitimmediately.

• Preventative maintenance and periodic testing is necessary forcritical applications where damage could endanger property orpersonnel.

• Electrical ratings stated in literature and on nameplate mustnotbeexceeded.Overloadonaswitchcancausedamage,evenon the first cycle. Wire unit according to local and nationalelectrical codes, using wire size recommended in installationsheet.

• Donotmountunitinambienttemp.exceedingpublishedlimits.

LIMITED WARRANTYSeller warrants that the product hereby purchased is, upon delivery,free from defects in material and workmanship and that any suchproduct which is found to be defective in such workmanship ormaterial will be repaired or replaced by Seller (Ex-works, Factory,Watertown, Massachusetts. INCOTERMS); provided, however, that thiswarranty applies only to equipment found to be so defective withina period of 24 months from the date of manufacture by the Seller.Seller shall not be obligated under this warranty for alleged defectswhich examination discloses are due to tampering, misuse, neglect,improper storage, and in any case where products are disassembledbyanyoneother thanauthorizedSeller’s representatives.EXCEPTFORTHE LIMITED WARRANTY OF REPAIR AND REPLACEMENT STATEDABOVE, SELLER DISCLAIMS ALL WARRANTIES WHATSOEVER WITHRESPECT TO THE PRODUCT, INCLUDINGALL IMPLIEDWARRANTIESOFMERCHANTABILITYORFITNESSFORANYPARTICULARPURPOSE.

LIMITATION OF SELLER’S LIABILITYSELLER’SLIABILITYTOBUYERFORANYLOSSORCLAIM,INCLUDINGLIABILITY INCURRED IN CONNECTION WITH (I) BREACH OF ANYWARRANTYWHATSOEVER,EXPRESSEDORIMPLIED,(II)ABREACHOFCONTRACT,(III)ANEGLIGENTACTORACTS(ORNEGLIGENTFAILURETOACT)COMMITTEDBYSELLER,OR(IV)ANACTFORWHICHSTRICTLIABILITYWILLBEINPUTTEDTOSELLER,ISLIMITEDTOTHE“LIMITEDWARRANTY” OF REPAIR AND/OR REPLACEMENT AS SO STATED INOUR WARRANTY OF PRODUCT. IN NO EVENT SHALL THE SELLERBELIABLEFORANYSPECIAL,INDIRECT,CONSEQUENTIALOROTHERDAMAGESOFALIKEGENERALNATURE,INCLUDING,WITHOUTLIMI-TATION,LOSSOFPROFITSORPRODUCTION,ORLOSSOREXPENSESOFANYNATUREINCURREDBYTHEBUYERORANYTHIRDPARTY.

UE specifications subject to change without notice.

FORALISTOFOURINTERNATIONALANDDOMESTICREGIONALSALESOFFICESPLEASEVISITOUR

WEBPAGEWWW.UEONLINE.COM

Besuretovisitwww.ueonline.comforthelatestinformation.

Documents

EXPLOSION-PROOF PRESSURE, VACUUM, 120 …DIFFERENTIAL PRESSURE AND TEMPERATURE SWITCHES 120 Series 120 Series 2 1 2 0 - B - 1 0 1 2 0 - B - 1 0 3 120-B As safety requirements become