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    20 Products

    Washdown Autotuning Temperature Controllers

    The faceplate on these controllers is sealed to meet NEMA 4X and IP66 for protection in washdown environments with splashing water, corrosive liquid, and dust. The rear case meets IP20, which prevents objects about the size of a finger from coming into contact with a live circuit.
    Because they have proportional-integral-derivative (PID) software, these controllers are ideal for turning heating equipment on and off in systems with rapid, unpredictable, and complex temperature changes. They help you achieve precise and stable temperature control with fuzzy logic that learns system behavior and automatically compensates for changes. Use the autotuning function to cycle and identify the ideal PID variables for your system to achieve the most precise control. These controllers read temperature with a highly sensitive thermocouple probe (sold separately) in critical process applications. All fit into instrument panels with DIN cutouts. Use the keypad to adjust the actuation point, reset point, and other settings.
    Controllers with Mechanical Relay Heating Output
    Image of Product. Front orientation. Temperature Controllers. Washdown Autotuning Temperature Controllers, For 1/32 DIN Panel Cutout Size.
    Image of Product. Front orientation. Temperature Controllers. Washdown Autotuning Temperature Controllers, For 1/16 DIN Panel Cutout Size.

    For 1/32 DIN Panel

    Cutout Size

    For 1/16 DIN

    Panel Cutout Size

    Image of Product. Front orientation. Temperature Controllers. Washdown Autotuning Temperature Controllers, For 1/8 DIN Panel Cutout Size.
    Image of Product. Front orientation. Temperature Controllers. Washdown Autotuning Temperature Controllers, For 1/4 DIN Panel Cutout Size.

    For 1/8 DIN

    Panel Cutout

    Size

    For 1/4 DIN Panel

    Cutout Size

    Mechanical relay outputs actuate circuits directly.
    SPDT—Single pole, double throw (SPDT) relays can be set to turn the circuit from off to on (normally open) or from on to off (normally closed).
    SPST-NO—Single pole, single throw (SPST) relays turn one circuit from off to on (normally open).
    Automatic Reset—Controllers with automatic reset switch off and on again automatically as the temperature fluctuates.
    Manual Reset—Controllers with automatic/manual reset give you the choice to have machines turn back on either automatically when the temperature fluctuates, or you can manually reset their switch. When set to manual they shut down your machine when it gets too hot to protect equipment and personnel. They won’t turn the machine back on until you reset their switch. They have a second output to actuate an alarm or another simple device.
    Mechanical Relay
    Total No.
    of Outputs
    Output Type
    Switch
    Designation
    Max. Switching Current
    @ Voltage
    For Probe Type
    Reset Type
    Input Voltage
    Range, V AC
    Enclosure Rating
    Each
    For 1/32 DIN Panel Cutout Size–For 7/8" Ht. × 1 3/4" Wd. Panel Cutout
    1Heating—1 Mechanical RelayHeating—SPST-NO
    		Heating— 3 amp @ 220V ACThermocoupleAutomatic100 to 240IP20, IP66, NEMA 4X
    		7981K810000000
     
    For 1/16 DIN Panel Cutout Size–For 1 3/4" Ht. × 1 3/4" Wd. Panel Cutout
    3Heating—1 Mechanical Relay
    Alarming—2 Mechanical Relays    		Heating—SPST-NO
    Alarm—SPST-NO    		Heating—3 amp @ 250V AC
    Alarming—1 amp @ 250V AC    		Thermocouple, RTDAutomatic, Manual100 to 240IP20, IP66, NEMA 4X
    		7981K16000000
     
    For 1/8 DIN Panel Cutout Size–For 3 3/4" Ht. × 1 3/4" Wd. Panel Cutout
    3Heating—1 Mechanical Relay
    Alarming—2 Mechanical Relays    		Heating—SPDT
    Alarm—SPST-NO    		Heating— 5 amp @ 250V AC
    Alarming— 1 amp @ 250V AC    		Thermocouple, RTDAutomatic, Manual100 to 240IP20, IP66, NEMA 4X
    		7981K51000000
     
    For 1/4 DIN Panel Cutout Size–For 3 3/4" Ht. × 3 3/4" Wd. Panel Cutout
    3Heating—1 Mechanical Relay
    Alarming—2 Mechanical Relays    		Heating—SPDT
    Alarm—SPST-NO    		Heating—3 amp @ 250V AC
    Alarming—1 amp @ 250V AC    		Thermocouple, RTDAutomatic, Manual100 to 240IP20, IP66, NEMA 4X
    		7981K61000000
     
    Accessories for Temperature Controllers
    DIN-Rail/Surface-Mount Adapters for 1/16 DIN Controllers
    Image of Product. Front orientation. DIN Rail Mounting Adapters. Washdown Autotuning Temperature Controllers, Mounting Fasteners Not Included.

    Mounting Fasteners

    Not Included

    DIN-Rail/Surface-Mount Adapters for 1/16 DIN Controllers—DIN-rail/surface-mount adapters mount 1/16 DIN controllers to a DIN rail or surface.
    Mounting
    Fasteners
    Included
    Screw
    Size
    No. of
    Holes
    Each
    NoNo. 6
    		238615K113000000
    DIN Cutout Adapters for 1/16 DIN Controllers
    Image of Product. Front orientation. DIN Rail Mounting Adapters. Washdown Autotuning Temperature Controllers, Mounting Fasteners Included.

    Mounting Fasteners

    Included

    DIN Cutout Adapters for 1/16 DIN Controllers—DIN cutout adapters convert larger cutouts to fit 1/16 DIN controllers.
    Mounting
    For DIN Panel
    Cutout Size
    Fasteners
    Included
    Screw
    Size
    No. of
    Holes
    Each
    1/16, 1/4YesNo. 8
    		438615K111000000
    1/16, 1/8YesNo. 8
    		438615K11200000
    Controllers with Solid State Relay Heating Output
    Image of Product. Front orientation. Temperature Controllers. Washdown Autotuning Temperature Controllers, For 1/32 DIN Panel Cutout Size.
    Image of Product. Front orientation. Temperature Controllers. Washdown Autotuning Temperature Controllers, For 1/16 DIN Panel Cutout Size.

    For 1/32 DIN Panel

    Cutout Size

    For 1/16 DIN

    Panel Cutout Size

    Image of Product. Front orientation. Temperature Controllers. Washdown Autotuning Temperature Controllers, For 1/8 DIN Panel Cutout Size.
    Image of Product. Front orientation. Temperature Controllers. Washdown Autotuning Temperature Controllers, For 1/4 DIN Panel Cutout Size.

    For 1/8 DIN

    Panel Cutout

    Size

    For 1/4 DIN Panel

    Cutout Size

    Solid state relay outputs send a pulse signal to directly control an external solid state relay (not included). They last longer than mechanical and analog signal relays. Use them for more precise and rapid control switching than mechanical relays.
    SPST-NO—Single pole, single throw (SPST) relays turn one circuit from off to on (normally open).
    Automatic Reset—Controllers with automatic reset switch off and on again automatically as the temperature fluctuates.
    Manual Reset—Controllers with automatic/manual reset give you the choice to have machines turn back on either automatically when the temperature fluctuates, or you can manually reset their switch. When set to manual they shut down your machine when it gets too hot to protect equipment and personnel. They won’t turn the machine back on until you reset their switch. They have a second output to actuate an alarm or another simple device.
    Mechanical Relay
    Total No.
    of Outputs
    Output Type
    Switch
    Designation
    Max. Switching Current
    @ Voltage
    For Probe Type
    Reset Type
    Input Voltage
    Range, V AC
    Enclosure Rating
    Each
    For 1/32 DIN Panel Cutout Size–For 7/8" Ht. × 1 3/4" Wd. Panel Cutout
    1Heating—1 15V DC Solid State Relay——ThermocoupleAutomatic100 to 240IP20, IP66, NEMA 4X
    		7981K820000000
     
    For 1/16 DIN Panel Cutout Size–For 1 3/4" Ht. × 1 3/4" Wd. Panel Cutout
    3Heating—1 12V DC Solid State Relay
    Alarming—2 Mechanical Relays    		SPST-NO
    		1 amp @ 250V ACThermocouple, RTDAutomatic, Manual100 to 240IP20, IP66, NEMA 4X
    		7981K18000000
     
    For 1/8 DIN Panel Cutout Size–For 3 3/4" Ht. × 1 3/4" Wd. Panel Cutout
    3Heating—1 12V DC Solid State Relay
    Alarming—2 Mechanical Relays    		SPST-NO
    		1 amp @ 250V ACThermocouple, RTDAutomatic, Manual100 to 240IP20, IP66, NEMA 4X
    		7981K54000000
     
    For 1/4 DIN Panel Cutout Size–For 3 3/4" Ht. × 3 3/4" Wd. Panel Cutout
    3Heating—1 12V DC Solid State Relay
    Alarming—2 Mechanical Relays    		SPST-NO
    		1 amp @ 250V ACThermocouple, RTDAutomatic, Manual100 to 240IP20, IP66, NEMA 4X
    		7981K64000000
     
    Accessories for Temperature Controllers
    DIN-Rail/Surface-Mount Adapters for 1/16 DIN Controllers
    Image of Product. Front orientation. DIN Rail Mounting Adapters. Washdown Autotuning Temperature Controllers, Mounting Fasteners Not Included.

    Mounting Fasteners

    Not Included

    DIN-Rail/Surface-Mount Adapters for 1/16 DIN Controllers—DIN-rail/surface-mount adapters mount 1/16 DIN controllers to a DIN rail or surface.
    Mounting
    Fasteners
    Included
    Screw
    Size
    No. of
    Holes
    Each
    NoNo. 6
    		238615K113000000
    DIN Cutout Adapters for 1/16 DIN Controllers
    Image of Product. Front orientation. DIN Rail Mounting Adapters. Washdown Autotuning Temperature Controllers, Mounting Fasteners Included.

    Mounting Fasteners

    Included

    DIN Cutout Adapters for 1/16 DIN Controllers—DIN cutout adapters convert larger cutouts to fit 1/16 DIN controllers.
    Mounting
    For DIN Panel
    Cutout Size
    Fasteners
    Included
    Screw
    Size
    No. of
    Holes
    Each
    1/16, 1/4YesNo. 8
    		438615K111000000
    1/16, 1/8YesNo. 8
    		438615K11200000
    Controllers with Analog Signal Heating Output
    Image of Product. Front orientation. Temperature Controllers. Washdown Autotuning Temperature Controllers, For 1/16 DIN Panel Cutout Size.
    Image of Product. Front orientation. Temperature Controllers. Washdown Autotuning Temperature Controllers, For 1/8 DIN Panel Cutout Size.
    Image of Product. Front orientation. Temperature Controllers. Washdown Autotuning Temperature Controllers, For 1/4 DIN Panel Cutout Size.

    For 1/16 DIN

    Panel Cutout Size

    For 1/8 DIN

    Panel Cutout

    Size

    For 1/4 DIN Panel

    Cutout Size

    Analog signal outputs send 4-20 mA current to actuate equipment on a current loop. They are typically used with SRC (silicon controlled rectifier) power controllers (not included) for some of the highest precision control.
    SPST-NO—Single pole, single throw (SPST) relays turn one circuit from off to on (normally open).
    Automatic Reset—Controllers with automatic reset switch off and on again automatically as the temperature fluctuates.
    Manual Reset—Controllers with automatic/manual reset give you the choice to have machines turn back on either automatically when the temperature fluctuates, or you can manually reset their switch. When set to manual they shut down your machine when it gets too hot to protect equipment and personnel. They won’t turn the machine back on until you reset their switch. They have a second output to actuate an alarm or another simple device.
    Mechanical Relay
    Total No.
    of Outputs
    Output Type
    Switch
    Designation
    Max. Switching Current
    @ Voltage
    For Probe Type
    Reset Type
    Input Voltage
    Range, V AC
    Enclosure Rating
    Each
    For 1/16 DIN Panel Cutout Size–For 1 3/4" Ht. × 1 3/4" Wd. Panel Cutout
    3Heating—1 4 mA to 20 mA Analog Signal
    Alarming—2 Mechanical Relays    		SPST-NO
    		1 amp @ 250V ACThermocouple, RTDAutomatic, Manual100 to 240IP20, IP66, NEMA 4X
    		7981K170000000
     
    For 1/8 DIN Panel Cutout Size–For 3 3/4" Ht. × 1 3/4" Wd. Panel Cutout
    3Heating—1 4 mA to 20 mA Analog Signal
    Alarming—2 Mechanical Relays    		SPST-NO
    		1 amp @ 250V ACThermocouple, RTDAutomatic, Manual100 to 240IP20, IP66, NEMA 4X
    		7981K53000000
     
    For 1/4 DIN Panel Cutout Size–For 3 3/4" Ht. × 3 3/4" Wd. Panel Cutout
    3Heating—1 4 mA to 20 mA Analog Signal
    Alarming—2 Mechanical Relays    		SPST-NO
    		1 amp @ 250V ACThermocouple, RTDAutomatic, Manual100 to 240IP20, IP66, NEMA 4X
    		7981K63000000
     
    Accessories for Temperature Controllers
    DIN-Rail/Surface-Mount Adapters for 1/16 DIN Controllers
    Image of Product. Front orientation. DIN Rail Mounting Adapters. Washdown Autotuning Temperature Controllers, Mounting Fasteners Not Included.

    Mounting Fasteners

    Not Included

    DIN-Rail/Surface-Mount Adapters for 1/16 DIN Controllers—DIN-rail/surface-mount adapters mount 1/16 DIN controllers to a DIN rail or surface.
    Mounting
    Fasteners
    Included
    Screw
    Size
    No. of
    Holes
    Each
    NoNo. 6
    		238615K113000000
    DIN Cutout Adapters for 1/16 DIN Controllers
    Image of Product. Front orientation. DIN Rail Mounting Adapters. Washdown Autotuning Temperature Controllers, Mounting Fasteners Included.

    Mounting Fasteners

    Included

    DIN Cutout Adapters for 1/16 DIN Controllers—DIN cutout adapters convert larger cutouts to fit 1/16 DIN controllers.
    Mounting
    For DIN Panel
    Cutout Size
    Fasteners
    Included
    Screw
    Size
    No. of
    Holes
    Each
    1/16, 1/4YesNo. 8
    		438615K111000000
    1/16, 1/8YesNo. 8
    		438615K11200000

    Hazardous Location Threaded Temperature Switches

    Image of Product. Front orientation. Temperature Switches. Hazardous Location Threaded Temperature Switches.
    Often used in hazardous locations, such as chemical plants, refineries, and grain elevators, these switches have a housing that’s UL listed for environments with flammable gases, combustible dust, and ignitable fibers. It is UL listed for use in Class I, Divisions 1 and 2, Groups B, C, and D; Class II, Divisions 1 and 2, Groups E, F, and G; and Class III, Divisions 1 and 2 hazardous locations. The housing also meets NEMA 4X for use in washdown environments with splashing water, corrosive liquid, and dust. Install the threaded probe directly into tanks, pipelines, and other process components to turn heating equipment on or off at a specified temperature. Set actuation points with the adjustment dial.
    1 Actuation Point—Switches with one actuation point have one SPDT (single pole, double throw) relay. The relay can be set to turn one circuit from off to on (normally open) or from on to off (normally closed).
    2 Actuation Points—Switches with two actuation points have two SPDT (single pole, double throw) relays. Each relay can be set to turn one circuit from off to on (normally open) or from on to off (normally closed).
    Probe
    SPDT
    Temp. Range,
    ° F
    Temp.
    Accuracy
    No. of Actuation
    Points
    Actuation
    Tolerance
    No. of Circuits
    Controlled
    Max. Switching Current @ Voltage
    (Electrical Phase)
    Dia.
    Lg.
    Max. Pressure,
    psi
    Ht.
    Wd.
    Dp.
    Enclosure Rating
    Hazardous Location Rating
    Certification
    Each
    Threaded Brass Probe—1/2 NPT Male
     
    Adjustable Actuation Point
    0 to 225±2° F1-1% to 1%115 amp @ 125V AC (Single)
    15 amp @ 250V AC (Single)
    15 amp @ 480V AC (Single)    		9/16"1 7/8"1,89710"5 1/8"5 3/16"IP66, NEMA 4X, NEMA 7, NEMA 9
    		ATEX II 2 D Ex Tb IIIC T85° C Db
    ATEX II 2 G Ex Db IIC T6 Gb
    IEC Zone 1 Groups IIC, IIB, IIA
    IEC Zone 21 Groups IIIC, IIIB, IIIA
    IECEx Ex D IIC T6 Gb
    IECEx Ex Tb IIIC T85° C Db
    NEC Class I Divisions 1, 2 Groups B, C, D
    NEC Class II Divisions 1, 2 Groups E, F, G
    NEC Class III Divisions 1, 2
    NEC Zone 1 Groups IIB, IIA    		UL Listed, C-UL Listed, CE Marked
    		5032K670000000
    0 to 225±2° F2-1% to 1%215 amp @ 125V AC (Single)
    15 amp @ 250V AC (Single)
    15 amp @ 480V AC (Single)    		9/16"1 7/8"1,78410"5 1/8"5 3/16"IP66, NEMA 4X, NEMA 7, NEMA 9
    		ATEX II 2 D Ex Tb IIIC T85° C Db
    ATEX II 2 G Ex Db IIC T6 Gb
    IEC Zone 1 Groups IIC, IIB, IIA
    IEC Zone 21 Groups IIIC, IIIB, IIIA
    IECEx Ex D IIC T6 Gb
    IECEx Ex Tb IIIC T85° C Db
    NEC Class I Divisions 1, 2 Groups B, C, D
    NEC Class II Divisions 1, 2 Groups E, F, G
    NEC Class III Divisions 1, 2
    NEC Zone 1 Groups IIB, IIA    		UL Listed, C-UL Listed, CE Marked
    		5032K8700000000
     

    Hazardous Location Wall-Mount Temperature Switches

    Image of Product. With Threaded Probe. Front orientation. Temperature Switches. Hazardous Location Wall-Mount Temperature Switches, SPDT—1 Circuit Controlled.
    Image of Product. With Unthreaded Probe. Front orientation. Temperature Switches. Hazardous Location Wall-Mount Temperature Switches, SPDT—2 Circuits Controlled.

    With Threaded

    Probe

    With

    Unthreaded

    Probe

    Turn heating equipment on or off in environments with flammable gases, combustible dust, and ignitable fibers, such as chemical plants, refineries, and grain elevators. The switch housing is UL listed for use in Class I, Divisions 1 and 2, Groups B, C, and D; Class II, Divisions 1 and 2, Groups E, F, and G; and Class III, Divisions 1 and 2 hazardous locations. It also meets NEMA 4X for use in washdown environments with splashing water, corrosive liquid, and dust. Switches have a probe on a cable for remote temperature readings. Set actuation points with the adjustment dial.
    1 Actuation Point—Switches with one actuation point have one SPDT (single pole, double throw) relay. The relay can be set to turn one circuit from off to on (normally open) or from on to off (normally closed). The probe has 1/2 NPT male threads for installation directly into tanks, pipelines, and other process components. It comes with a bushing that adapts the thread size to 3/4 NPT male.
    2 Actuation Points—Switches with two actuation points have two SPDT (single pole, double throw) relays. Each relay can be set to turn one circuit from off to on (normally open) or from on to off (normally closed).
    Probe
    Temp. Range
    Temp.
    Accuracy
    No. of Actuation
    Points
    Max. Switching Current @ Voltage
    (Electrical Phase)
    Dia.
    Lg.
    Ht.
    Wd.
    Dp.
    Enclosure Rating
    Hazardous Location Rating
    Includes
    Each
    SPDT—1 Circuit Controlled
     
    Threaded Stainless Steel Probe—1/2 NPT Male
    30° F to 250° F±5° F115 amp @ 125V AC (Single)
    15 amp @ 250V AC (Single)
    15 amp @ 480V AC (Single)    		3/8"2 5/8"9 5/16"5 1/8"5 3/16"IP66, NEMA 4X, NEMA 7, NEMA 9
    		ATEX II 2 D Ex Tb IIIC T85° C Db
    ATEX II 2 G Ex Db IIC T6 Gb
    IEC Zone 1 Groups IIC, IIB, IIA
    IEC Zone 21 Groups IIIC, IIIB, IIIA
    IECEx Ex D IIC T6 Gb
    IECEx Ex Tb IIIC T85° C Db
    NEC Class I Divisions 1, 2 Groups B, C, D
    NEC Class II Divisions 1, 2 Groups E, F, G
    NEC Class III Divisions 1, 2
    NEC Zone 1 Groups IIB, IIA    		1/2 × 3/4 NPT Adapter Bushing5032K66000000000
     
    SPDT—2 Circuits Controlled
     
    Unthreaded Stainless Steel Probe
    30° F to 250° F±5° F215 amp @ 125V AC (Single)
    15 amp @ 250V AC (Single)
    15 amp @ 480V AC (Single)    		3/8"2 5/8"9 5/16"5 1/8"5 3/16"IP66, NEMA 4X, NEMA 7, NEMA 9
    		ATEX II 2 D Ex Tb IIIC T85° C Db
    ATEX II 2 G Ex Db IIC T6 Gb
    IEC Zone 1 Groups IIC, IIB, IIA
    IEC Zone 21 Groups IIIC, IIIB, IIIA
    IECEx Ex D IIC T6 Gb
    IECEx Ex Tb IIIC T85° C Db
    NEC Class I Divisions 1, 2 Groups B, C, D
    NEC Class II Divisions 1, 2 Groups E, F, G
    NEC Class III Divisions 1, 2
    NEC Zone 1 Groups IIB, IIA    		—5032K8600000000
     
    Switch Mounts
    Packing Seals and Fittings—Use packing seals and fittings to seal the probe into threaded tanks and pipes.
    Each
    Packing Seals and Fittings3626K31000000

    On/Off Temperature Controllers for Plug-in Heaters

    Image of Product. Front orientation. Temperature Controllers. On/Off Temperature Controllers for Plug-in Heaters, IP66, NEMA 4X—Wall Mount.

    IP66, NEMA 4X—Wall Mount

    Switch heaters on or off when your process reaches a certain temperature. Both these controllers and your heater will be powered by the same wall outlet. Place the probe into your process, plug the controller into an outlet, and plug your heater into the socket on the back of the controller’s plug. These simple temperature controllers deliver either full power or no power. They’re best used in systems where temperatures change slowly and you don’t need precise control.
    IP66 Enclosure Rating and NEMA 4X Enclosure Rating—IP66 and NEMA 4X rated controllers seal out dirt, corrosive liquids, and water from high-pressure washdowns.
    Mechanical Relay
    Probe
    Temperature Control
    Range
    Output Type
    Switch
    Designation
    Max. Switching Current
    @ Voltage
    Reset
    Type
    Dia.
    Lg.
    Cable Lg.,
    ft.
    Input Voltage,
    V AC
    Ht.
    Wd.
    Dp.
    Each
    IP66, NEMA 4X—Wall Mount
    -40° F to 212° F
    -40° C to 100° C    		Heating—1 Mechanical RelaySPDT-NO12 amp @ 120V ACAutomatic1/4"2"61206 5/8"2 13/16"2 13/16"6461N120000000
     
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