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    22 Products

    Thermocouple and RTD Connection Heads

    Image of Product. Front orientation. Thermocouple and RTD Connection Heads. Screw-On Cap with Retaining Chain.
    Image of Product. Front orientation. Thermocouple and RTD Connection Heads. Hinged Cap.

    Screw-On Cap with

    Retaining Chain

    Hinged Cap

    Attach these heads to your thermocouple or RTD probe to protect wiring from dust and moisture. The removable cap makes it easy to access your wiring when you need. Install an optional terminal block inside the head to keep your wiring organized.
    Hazardous Locations—Hazardous location connection heads are rated for use in Class I, Divisions 1 and 2, Groups A, B, C, and D; Class II, Divisions 1 and 2, Groups E, F, and G; and Class III, Divisions 1 and 2 environments with flammable gases, combustible dust, and combustible fibers.
    Probe
    Connection
    Conduit
    Connection
    Pipe
    Size
    Thread
    Type
    Gender
    Pipe
    Size
    Thread
    Type
    Gender
    Includes
    Environment
    Hazardous Location Rating
    Enclosure
    Rating
    Each
    Aluminum
    1/2
    		NPT
    		Female3/4
    		NPT
    		FemaleScrew-On Cap with Retaining Chain———38705K85000000
    1/2
    		NPT
    		Female3/4
    		NPT
    		FemaleScrew-On Cap with Retaining ChainCorrosive, Dusty, Hazardous, Outdoor, Washdown, WetNEC Class I Divisions 1, 2 Groups A, B, C, D
    NEC Class II Divisions 1, 2 Groups E, F, G
    NEC Class III Divisions 1, 2
    		NEMA 4X
    		38705K94000000
     
    Cast Iron
    1/2
    		NPT
    		Female3/4
    		NPT
    		FemaleScrew-On Cap with Retaining Chain———38705K8400000
     
    Plastic
    1/2
    		NPT
    		Female3/4
    		NPT
    		FemaleScrew-On Cap with Retaining Chain———38705K2200000
    1/2
    		NPT
    		Female3/4
    		NPT
    		FemaleHinged Cap———38705K8600000
     
    Stainless Steel
    1/2
    		NPT
    		Female3/4
    		NPT
    		FemaleScrew-On Cap with Retaining Chain———38705K21000000
    1/2
    		NPT
    		Female3/4
    		NPT
    		FemaleScrew-On Cap with Retaining ChainDusty, Hazardous, Washdown, WetNEC Class I Divisions 1, 2 Groups A, B, C, D
    NEC Class II Divisions 1, 2 Groups E, F, G
    NEC Class III Divisions 1, 2
    NEC Zone 1 Groups IIC, IIB, IIA
    NEC Zone 21 Groups IIIC, IIIB, IIIA
    IEC Zone 1 Groups IIC, IIB, IIA
    IEC Zone 21 Groups IIIC, IIIB, IIIA
    AEx D IIC Gb
    AEx Tb IIIC Db
    Ex D IIC Gb
    Ex Tb IIIC Db
    ATEX II 2 GD Ex Db IIC Gb Ex Tb IIIC Db
    IECEx Ex Db IIC Gb
    IECEx Ex Tb IIIC Db    		IP66
    		38705K23000000
     

    Cut-to-Length RTD Probes for Liquids and Gas

    For a perfect fit in a thermowell, trim these probes with a pipe cutter. Stainless steel protects the sensing element from impact and liquids when they’re immersed. They are often installed in a bore to measure the temperature of molds, dies, and other equipment.
    Wire-Lead Connection
    Image of Product. Front orientation. Contains Annotated. RTDs. Cut-to-Length RTD Probes for Liquids and Gas.
    Probe
    Wire
    RTD Probe Resistance,
    ohm
    Temp. Range,
    ° F
    Lg.
    Dia.
    Accuracy
    Response
    Time, sec.
    Cuttable
    Lg.
    Sensing
    Tip Lg.
    Sensing Element
    Material
    Lead
    Lg.
    AWG
    No. of
    Wires
    Each
    304 Stainless Steel Probe
    100-55 to 40012"3/16"±0.12%28 1/2"3"Platinum6"24
    		338705K1230000000
    100-55 to 40012"1/4"±0.12%4.48 1/2"3"Platinum6"24
    		338705K111000000
    100-55 to 40024"3/16"±0.12%220 1/2"3"Platinum6"24
    		338705K112000000
    100-55 to 40024"1/4"±0.12%4.420 1/2"3"Platinum6"24
    		338705K44000000
    100-55 to 40048"1/4"±0.12%4.444 1/2"3"Platinum6"24
    		338705K34000000
    100-55 to 40072"1/4"±0.12%4.468 1/2"3"Platinum6"24
    		338705K113000000
    100-55 to 40096"1/4"±0.12%4.492 1/2"3"Platinum6"24
    		338705K114000000
    100-55 to 90012"3/16"±0.12%28 1/2"3"Platinum6"24
    		338705K122000000
    100-55 to 90012"1/4"±0.12%4.48 1/2"3"Platinum6"24
    		338705K115000000
    100-55 to 90024"3/16"±0.12%220 1/2"3"Platinum6"24
    		338705K116000000
    100-55 to 90024"1/4"±0.12%4.420 1/2"3"Platinum6"24
    		338705K37000000
    100-55 to 90048"1/4"±0.12%4.444 1/2"3"Platinum6"24
    		338705K38000000
     

    Dual-Output Cut-to-Length RTD Probes for Liquids and Gas

    Output temperature readings to two devices, or in applications where you want to output temperature readings to two different devices. For example, the output from one thermocouple might be fed to a data logger, while the output from the other thermocouple is used for process control.
    Wire-Lead Connection
    Image of Product. Front orientation. Contains Annotated. RTDs. Dual-Output Cut-to-Length RTD Probes for Liquids and Gas.
    Probe
    Wire
    RTD Probe Resistance,
    ohm
    Temp. Range,
    ° F
    Lg.
    Dia.
    Accuracy
    Response
    Time, sec.
    Cuttable
    Lg.
    Sensing
    Tip Lg.
    Sensing Element
    Material
    Lead
    Lg.
    AWG
    No. of
    Wires
    Each
    304 Stainless Steel Probe
    100-55 to 40012"1/4"±0.12%4.48 1/2"3"Platinum6"24
    		638705K1240000000
    100-55 to 40024"1/4"±0.12%4.420 1/2"3"Platinum6"24
    		638705K118000000
    100-55 to 90012"1/4"±0.12%4.48 1/2"3"Platinum6"24
    		638705K128000000
     
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