McMaster-Carr logo
    Filter by
    Thermocouple Probe Type
    Probe Type
    For DIN Panel Cutout Size
    Measurement Unit
    Total Number of Outputs
    Mounting Location
    Number of Outputs
    Display Type
    Thermocouple Probe Connection
    Number of Actuation Points
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    84 Products

    Autotuning Temperature Controllers

    Ideal in systems with rapid, unpredictable, or complex temperature changes, these controllers turn heating equipment on and off using a proportional-integral-derivative (PID) control algorithm to make fine adjustments, giving you the most precise and stable temperature control. They work similarly to proportional controllers but gather more variables to calculate the most effective way to return to the target temperature and avoid overshooting. They also have fuzzy logic to learn your system's behavior and compensate as needed. Use the autotuning function to have the controller cycle and identify the ideal PID variables for your system. You can also manually select the PID variables. These controllers read temperature with a highly sensitive thermocouple or RTD probe (both not included) in critical process applications. Since they reset automatically, they switch off and on again as the temperature fluctuates. All fit into instrument panels with DIN cutouts. Use the keypad to adjust the actuation point, reset point, other settings.
    All meet American, Canadian, and European safety standards.
    Controllers with Mechanical Relay Heating Output
    Image of Product. Front orientation. Temperature Controllers. Autotuning Temperature Controllers, For 1/32 DIN Panel Cutout Size.
    Image of Product. Front orientation. Temperature Controllers. Autotuning Temperature Controllers, For 1/16 DIN Panel Cutout Size.
    Image of Product. Front orientation. Temperature Controllers. Autotuning Temperature Controllers, For 1/8 DIN Panel Cutout Size.

    For 1/32 DIN Panel

    Cutout Size

    For 1/16 DIN Panel

    Cutout Size

    For 1/8 DIN

    Panel Cutout

    Size

    Image of Product. Front orientation. Temperature Controllers. Autotuning Temperature Controllers, For 3/16 DIN Panel Cutout Size.
    Image of Product. Front orientation. Temperature Controllers. Autotuning Temperature Controllers, For 1/4 DIN Panel Cutout Size.

    For 3/16 DIN Panel

    Cutout Size

    For 1/4 DIN Panel

    Cutout Size

    Mechanical relay outputs actuate circuits directly. All are single pole, single throw (SPST) relays and turn one circuit from off to on (normally open).
    For Alarming—Alarm outputs can also be configured to actuate simple devices.
    IP20 Enclosure Rating and IP50 Enclosure Rating—IP20 rated controllers prevent objects about the size of a finger from coming into contact with a live circuit. IP50 rated controllers protect against dust.
    Mechanical Relay
    For Thermocouple
    Probe Type
    Total No.
    of Outputs
    Output Type
    Switch
    Designation
    Max. Switching Current
    @ Voltage
    For Probe Type
    Reset
    Type
    Input Voltage
    Range, V AC
    Ht.
    Wd.
    Dp.
    Enclosure
    Rating
    Each
    For 1/32 DIN Panel Cutout Size–For 7/8" Ht. × 1 3/4" Wd. Panel Cutout
    B, E, J, K, L, N, R, S, T1Heating—1 Mechanical RelaySPST-NO
    2 amp @ 240V ACThermocouple, RTDAutomatic90 to 25015/16"1 7/8"3 5/8"IP20, IP50
    0000000000000000
    B, E, J, K, L, N, R, S, T3Heating—1 Mechanical Relay
    Cooling/Alarming—1 Mechanical Relay
    Alarming—1 Mechanical Relay
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2501 7/8"15/16"3 13/16"IP20, IP50
    00000000000000
     
    For 1/16 DIN Panel Cutout Size–For 1 3/4" Ht. × 1 3/4" Wd. Panel Cutout
    B, E, J, K, L, N, R, S, T1Heating—1 Mechanical RelaySPST-NO
    2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2501 7/8"1 7/8"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, L, N, R, S, T2Heating—1 Mechanical Relay
    Cooling/Alarming—1 Mechanical Relay
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2501 7/8"1 7/8"2 3/8"IP20, IP50
    00000000000000
    B, E, J, K, L, N, R, S, T3Heating—1 Mechanical Relay
    Cooling/Alarming—1 Mechanical Relay
    Alarming—1 Mechanical Relay
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2501 7/8"1 7/8"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, N, R, S, T
    3Heating/Cooling—1 Mechanical Relay
    Alarming—2 Mechanical Relays
    SPST-NO5 amp @ 110V ACThermocouple, RTDAutomatic90 to 2641 7/8"1 7/8"4 3/16"00000000000000
    B, E, J, K, L, N, R, S, T4Heating—1 Mechanical Relay
    Cooling/Alarming—1 Mechanical Relay
    Alarming—2 Mechanical Relays
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2501 7/8"1 7/8"2 3/8"IP20, IP50
    000000000000000
     
    For 1/8 DIN Panel Cutout Size–For 1 3/4" Ht. × 3 5/8" Wd. Panel Cutout
    B, E, J, K, L, N, R, S, T1Heating—1 Mechanical RelaySPST-NO
    2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2501 7/8"3 3/4"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, L, N, R, S, T3Heating—1 Mechanical Relay
    Cooling/Alarming—1 Mechanical Relay
    Alarming—1 Mechanical Relay
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2501 7/8"3 3/4"2 3/8"IP20, IP50
    00000000000000
     
    For 1/8 DIN Panel Cutout Size–For 3 5/8" Ht. × 1 3/4" Wd. Panel Cutout
    B, E, J, K, L, N, R, S, T1Heating—1 Mechanical RelaySPST-NO
    2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2503 3/4"1 7/8"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, L, N, R, S, T3Heating—1 Mechanical Relay
    Cooling/Alarming—1 Mechanical Relay
    Alarming—1 Mechanical Relay
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2503 3/4"1 7/8"2 3/8"IP20, IP50
    00000000000000
     
    For 3/16 DIN Panel Cutout Size–For 2 11/16" Ht. × 2 11/16" Wd. Panel Cutout
    B, E, J, K, L, N, R, S, T1Heating—1 Mechanical RelaySPST-NO
    2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2502 27/32"2 27/32"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, L, N, R, S, T3Heating—1 Mechanical Relay
    Cooling/Alarming—1 Mechanical Relay
    Alarming—1 Mechanical Relay
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2502 9/16"2 7/8"2 3/8"IP20, IP50
    00000000000000
     
    For 1/4 DIN Panel Cutout Size–For 3 5/8" Ht. × 3 5/8" Wd. Panel Cutout
    B, E, J, K, L, N, R, S, T1Heating—1 Mechanical RelaySPST-NO
    2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2503 3/4"3 3/4"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, L, N, R, S, T3Heating—1 Mechanical Relay
    Cooling/Alarming—1 Mechanical Relay
    Alarming—1 Mechanical Relay
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2503 3/4"3 3/4"2 3/8"IP20, IP50
    00000000000000
    B, E, J, K, L, N, R, S, T4Heating—1 Mechanical Relay
    Cooling/Alarming—1 Mechanical Relay
    Alarming—2 Mechanical Relays
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2503 3/4"3 3/4"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, N, R, S, T
    4Heating/Cooling—2 Mechanical Relays
    Alarming—2 Mechanical Relays
    SPST-NO5 amp @ 110V ACThermocouple, RTDAutomatic90 to 2643 3/4"3 3/4"3 1/2"00000000000000
     
    Accessories for Temperature Controllers
    Controllers with Solid State Relay Heating Output
    Image of Product. Front orientation. Temperature Controllers. Autotuning Temperature Controllers, For 1/32 DIN Panel Cutout Size.
    Image of Product. Front orientation. Temperature Controllers. Autotuning Temperature Controllers, For 1/16 DIN Panel Cutout Size.
    Image of Product. Front orientation. Temperature Controllers. Autotuning Temperature Controllers, For 1/8 DIN Panel Cutout Size.

    For 1/32 DIN Panel

    Cutout Size

    For 1/16 DIN Panel

    Cutout Size

    For 1/8 DIN

    Panel Cutout

    Size

    Image of Product. Front orientation. Temperature Controllers. Autotuning Temperature Controllers, For 3/16 DIN Panel Cutout Size.
    Image of Product. Front orientation. Temperature Controllers. Autotuning Temperature Controllers, For 1/4 DIN Panel Cutout Size.

    For 3/16 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 have a longer service life than mechanical and signal relays. Use them for more precise and rapid control switching than mechanical relays.
    For Alarming—Alarm outputs can also be configured to actuate simple devices.
    IP20 Enclosure Rating and IP50 Enclosure Rating—IP20 rated controllers prevent objects about the size of a finger from coming into contact with a live circuit. IP50 rated controllers protect against dust.
    Mechanical Relay
    For Thermocouple
    Probe Type
    Total No.
    of Outputs
    Output Type
    Switch
    Designation
    Max. Switching Current
    @ Voltage
    For Probe Type
    Reset
    Type
    Input Voltage
    Range, V AC
    Ht.
    Wd.
    Dp.
    Enclosure
    Rating
    Each
    For 1/32 DIN Panel Cutout Size–For 7/8" Ht. × 1 3/4" Wd. Panel Cutout
    B, E, J, K, L, N, R, S, T1Heating—1 14V DC Solid State RelayThermocouple, RTDAutomatic90 to 25015/16"1 7/8"3 5/8"IP20, IP50
    0000000000000000
    B, E, J, K, L, N, R, S, T3Heating—1 14V DC Solid State Relay
    Cooling/Alarming—1 Mechanical Relay
    Alarming—1 Mechanical Relay
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2501 7/8"15/16"3 13/16"IP20, IP50
    00000000000000
     
    For 1/16 DIN Panel Cutout Size–For 1 3/4" Ht. × 1 3/4" Wd. Panel Cutout
    B, E, J, K, L, N, R, S, T1Heating—1 14V DC Solid State RelayThermocouple, RTDAutomatic90 to 2501 7/8"1 7/8"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, L, N, R, S, T2Heating—1 5V DC Solid State Relay
    Cooling—1 5V DC Solid State Relay
    Thermocouple, RTDAutomatic90 to 2501 7/8"1 7/8"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, L, N, R, S, T2Heating—1 14V DC Solid State Relay
    Cooling/Alarming—1 Mechanical Relay
    SPST-NO
    2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2501 7/8"1 7/8"2 3/8"IP20, IP50
    00000000000000
    B, E, J, K, L, N, R, S, T3Heating—1 14V DC Solid State Relay
    Cooling/Alarming—1 Mechanical Relay
    Alarming—1 Mechanical Relay
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2501 7/8"1 7/8"2 3/8"IP20, IP50
    00000000000000
     
    For 1/8 DIN Panel Cutout Size–For 1 3/4" Ht. × 3 5/8" Wd. Panel Cutout
    B, E, J, K, L, N, R, S, T1Heating—1 14V DC Solid State RelayThermocouple, RTDAutomatic90 to 2501 7/8"3 3/4"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, L, N, R, S, T3Heating—1 14V DC Solid State Relay
    Cooling/Alarming—1 Mechanical Relay
    Alarming—1 Mechanical Relay
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2501 7/8"3 3/4"2 3/8"IP20, IP50
    00000000000000
     
    For 1/8 DIN Panel Cutout Size–For 3 5/8" Ht. × 1 3/4" Wd. Panel Cutout
    B, E, J, K, L, N, R, S, T1Heating—1 14V DC Solid State RelayThermocouple, RTDAutomatic90 to 2503 3/4"1 7/8"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, L, N, R, S, T3Heating—1 14V DC Solid State Relay
    Cooling/Alarming—1 Mechanical Relay
    Alarming—1 Mechanical Relay
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2503 3/4"1 7/8"2 3/8"IP20, IP50
    00000000000000
     
    For 3/16 DIN Panel Cutout Size–For 2 11/16" Ht. × 2 11/16" Wd. Panel Cutout
    B, E, J, K, L, N, R, S, T1Heating—1 14V DC Solid State RelayThermocouple, RTDAutomatic90 to 2502 27/32"2 27/32"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, L, N, R, S, T3Heating—1 14V DC Solid State Relay
    Cooling/Alarming—1 Mechanical Relay
    Alarming—1 Mechanical Relay
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2502 9/16"2 7/8"2 3/8"IP20, IP50
    00000000000000
     
    For 1/4 DIN Panel Cutout Size–For 3 5/8" Ht. × 3 5/8" Wd. Panel Cutout
    B, E, J, K, L, N, R, S, T1Heating—1 14V DC Solid State RelayThermocouple, RTDAutomatic90 to 2503 3/4"3 3/4"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, L, N, R, S, T2Heating—1 5V DC Solid State Relay
    Cooling—1 5V DC Solid State Relay
    Thermocouple, RTDAutomatic90 to 2503 3/4"3 3/4"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, L, N, R, S, T3Heating—1 14V DC Solid State Relay
    Cooling/Alarming—1 Mechanical Relay
    Alarming—1 Mechanical Relay
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2503 3/4"3 3/4"2 3/8"IP20, IP50
    00000000000000
    B, E, J, K, L, N, R, S, T4Heating—1 14V DC Solid State Relay
    Cooling/Alarming—1 Mechanical Relay
    Alarming—2 Mechanical Relays
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2503 3/4"3 3/4"2 3/8"IP20, IP50
    00000000000000
     
    Accessories for Temperature Controllers
    Controllers with Analog Signal Heating Output
    Image of Product. Front orientation. Temperature Controllers. Autotuning Temperature Controllers, For 1/32 DIN Panel Cutout Size.
    Image of Product. Front orientation. Temperature Controllers. Autotuning Temperature Controllers, For 1/16 DIN Panel Cutout Size.
    Image of Product. Front orientation. Temperature Controllers. Autotuning Temperature Controllers, For 1/8 DIN Panel Cutout Size.

    For 1/32 DIN Panel

    Cutout Size

    For 1/16 DIN Panel

    Cutout Size

    For 1/8 DIN

    Panel Cutout

    Size

    Image of Product. Front orientation. Temperature Controllers. Autotuning Temperature Controllers, For 3/16 DIN Panel Cutout Size.
    Image of Product. Front orientation. Temperature Controllers. Autotuning Temperature Controllers, For 1/4 DIN Panel Cutout Size.

    For 3/16 DIN Panel

    Cutout Size

    For 1/4 DIN Panel

    Cutout Size

    Analog signal outputs are typically used with SRC (silicon controlled rectifier) power controllers (not included) for some of the highest precision control.
    For Alarming—Alarm outputs can also be configured to actuate simple devices.
    IP20 Enclosure Rating and IP50 Enclosure Rating—IP20 rated controllers prevent objects about the size of a finger from coming into contact with a live circuit. IP50 rated controllers protect against dust.
    Mechanical Relay
    For Thermocouple
    Probe Type
    Total No.
    of Outputs
    Output Type
    Switch
    Designation
    Max. Switching Current
    @ Voltage
    For Probe Type
    Reset
    Type
    Input Voltage
    Range, V AC
    Ht.
    Wd.
    Dp.
    Enclosure
    Rating
    Each
    For 1/32 DIN Panel Cutout Size–For 7/8" Ht. × 1 3/4" Wd. Panel Cutout
    B, E, J, K, L, N, R, S, T1Heating—1 4 mA to 20 mA Analog SignalThermocouple, RTDAutomatic90 to 25015/16"1 7/8"3 5/8"IP20, IP50
    0000000000000000
    B, E, J, K, L, N, R, S, T3Heating—1 4 mA to 20 mA Analog Signal
    Cooling/Alarming—1 Mechanical Relay
    Alarming—1 Mechanical Relay
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2501 7/8"15/16"3 13/16"IP20, IP50
    00000000000000
     
    For 1/16 DIN Panel Cutout Size–For 1 3/4" Ht. × 1 3/4" Wd. Panel Cutout
    B, E, J, K, L, N, R, S, T1Heating—1 4 mA to 20 mA Analog SignalThermocouple, RTDAutomatic90 to 2501 7/8"1 7/8"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, L, N, R, S, T2Heating—1 4 mA to 20 mA Analog Signal
    Cooling—1 4 mA to 20 mA Analog Signal
    Thermocouple, RTDAutomatic90 to 2501 7/8"1 7/8"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, L, N, R, S, T2Heating—1 4 mA to 20 mA Analog Signal
    Cooling/Alarming—1 Mechanical Relay
    SPST-NO
    2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2501 7/8"1 7/8"2 3/8"IP20, IP50
    00000000000000
     
    For 1/8 DIN Panel Cutout Size–For 1 3/4" Ht. × 3 5/8" Wd. Panel Cutout
    B, E, J, K, L, N, R, S, T1Heating—1 4 mA to 20 mA Analog SignalThermocouple, RTDAutomatic90 to 2501 7/8"3 3/4"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, L, N, R, S, T3Heating—1 4 mA to 20 mA Analog Signal
    Cooling/Alarming—1 Mechanical Relay
    Alarming—1 Mechanical Relay
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2501 7/8"3 3/4"2 3/8"IP20, IP50
    00000000000000
     
    For 1/8 DIN Panel Cutout Size–For 3 5/8" Ht. × 1 3/4" Wd. Panel Cutout
    B, E, J, K, L, N, R, S, T1Heating—1 4 mA to 20 mA Analog SignalThermocouple, RTDAutomatic90 to 2503 3/4"1 7/8"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, L, N, R, S, T3Heating—1 4 mA to 20 mA Analog Signal
    Cooling/Alarming—1 Mechanical Relay
    Alarming—1 Mechanical Relay
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2503 3/4"1 7/8"2 3/8"IP20, IP50
    00000000000000
     
    For 3/16 DIN Panel Cutout Size–For 2 11/16" Ht. × 2 11/16" Wd. Panel Cutout
    B, E, J, K, L, N, R, S, T1Heating—1 4 mA to 20 mA Analog SignalThermocouple, RTDAutomatic90 to 2502 27/32"2 27/32"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, L, N, R, S, T3Heating—1 4 mA to 20 mA Analog Signal
    Cooling/Alarming—1 Mechanical Relay
    Alarming—1 Mechanical Relay
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2502 9/16"2 7/8"2 3/8"IP20, IP50
    00000000000000
     
    For 1/4 DIN Panel Cutout Size–For 3 5/8" Ht. × 3 5/8" Wd. Panel Cutout
    B, E, J, K, L, N, R, S, T1Heating—1 4 mA to 20 mA Analog SignalThermocouple, RTDAutomatic90 to 2503 3/4"3 3/4"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, L, N, R, S, T2Heating—1 4 mA to 20 mA Analog Signal
    Cooling—1 4 mA to 20 mA Analog Signal
    Thermocouple, RTDAutomatic90 to 2503 3/4"3 3/4"2 3/8"IP20, IP50
    000000000000000
    B, E, J, K, N, R, S, T
    3Heating/Cooling—1 4 mA to 20 mA Analog Signal
    Alarming—2 Mechanical Relays
    SPST-NO
    5 amp @ 110V ACThermocouple, RTDAutomatic90 to 2643 3/4"3 3/4"3 1/2"00000000000000
     
    Accessories for Temperature Controllers

    DIN-Rail-Mount Autotuning Temperature Controllers

    Image of ProductInUse. Front orientation. Temperature Controllers. DIN-Rail-Mount Autotuning Temperature Controllers.
    Mount these temperature controllers directly onto DIN rail for controlling systems with rapid, unpredictable, or complex temperature changes. They turn heating equipment on and off using a proportional-integral-derivative (PID) control algorithm to make fine adjustments, giving you the most precise and stable temperature control. All work similarly to proportional controllers but gather more variables to calculate the most effective way to return to the target temperature and avoid overshooting. They also have fuzzy logic to learn your system's behavior and compensate as needed. Use the autotuning function to have the controller cycle and identify the ideal PID variables for your system. These controllers read temperature with a highly sensitive thermocouple or RTD probe (both not included) in critical process applications. Since they reset automatically, they switch off and on again as the temperature fluctuates. Use the keypad to adjust the actuation point, reset point, and other settings.
    All meet American, Canadian, and European safety standards.
    Controllers with Mechanical Relay Heating Output
    Mechanical relay outputs actuate circuits directly. All are single pole, single throw (SPST) relays and turn one circuit from off to on (normally open).
    For Alarming and For Cooling—Those with cooling/alarm outputs can also be used to turn cooling equipment on or off at a specified temperature.
    For Alarming—Alarm outputs can be configured to actuate alarms or other simple devices.
    Mechanical Relay
    For Thermocouple
    Probe Type
    Total No.
    of Outputs
    Output Type
    Switch
    Designation
    Max. Switching Current
    @ Voltage
    For Probe Type
    Reset
    Type
    Input Voltage
    Range, V AC
    Ht.
    Wd.
    Dp.
    Enclosure
    Rating
    Each
    B, E, J, K, L, N, R, S, T1Heating—1 Mechanical RelaySPST-NO
    2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2503 25/32"7/8"3 1/8"NEMA 1
    00000000000000
    B, E, J, K, L, N, R, S, T3Heating—1 Mechanical Relay
    Cooling/Alarming—1 Mechanical Relay
    Alarming—1 Mechanical Relay
    SPST-NO2 amp @ 240V ACThermocouple, RTDAutomatic90 to 2503 25/32"7/8"3 1/8"NEMA 1
    0000000000000
     
    Controllers with Solid State Relay Heating Output
    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.
    For Thermocouple
    Probe Type
    Total No.
    of Outputs
    Output Type
    For Probe Type
    Reset
    Type
    Input Voltage
    Range, V AC
    Ht.
    Wd.
    Dp.
    Enclosure
    Rating
    Each
    B, E, J, K, L, N, R, S, T1Heating—1 14V DC Solid State RelayThermocouple, RTDAutomatic90 to 2503 25/32"7/8"3 1/8"NEMA 1
    00000000000000
     
    Controllers with Analog Signal Heating Output
    Analog signal outputs are typically used with SRC (silicon controlled rectifier) power controllers (not included) for some of the highest precision control.
    For Thermocouple
    Probe Type
    Total No.
    of Outputs
    Output Type
    For Probe Type
    Reset
    Type
    Input Voltage
    Range, V AC
    Ht.
    Wd.
    Dp.
    Enclosure
    Rating
    Each
    B, E, J, K, L, N, R, S, T1Heating—1 4 mA to 20 mA Analog SignalThermocouple, RTDAutomatic90 to 2503 25/32"7/8"3 1/8"NEMA 1
    00000000000000
     

    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
    00000000000000
     
    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
    0000000000000
     
    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
    0000000000000
     
    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
    0000000000000
     
    Accessories for Temperature Controllers
    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 RelayThermocoupleAutomatic100 to 240IP20, IP66, NEMA 4X
    00000000000000
     
    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
    0000000000000
     
    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
    0000000000000
     
    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
    0000000000000
     
    Accessories for Temperature Controllers
    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
    00000000000000
     
    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
    0000000000000
     
    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
    0000000000000
     
    Accessories for Temperature Controllers

    High-Limit Temperature Controllers

    To protect equipment and personnel, these controllers shut down your machine when it gets too hot. Reset them manually to turn your machine on again. They're often used as a fail-safe system and for triggering alarms.
    Set the actuation point and adjust other settings with the keypad. To read the temperature, these controllers use a highly sensitive thermocouple probe (sold separately). They have one or two mechanical relays that actuate circuits directly. Mount them into instrumentation panels with DIN cutouts.
    Controllers with Mechanical Relay Heating Output
    Image of Product. Front orientation. Temperature Controllers. High-Limit Temperature Controllers, For 1/16 DIN Panel Cutout Size.
    Image of Product. Front orientation. Temperature Controllers. High-Limit Temperature Controllers, For 1/4 DIN Panel Cutout Size.

    For 1/16 DIN Panel

    Cutout Size

    For 1/4 DIN Panel

    Cutout Size

    SPDT—Controllers that are SPDT (single pole, double throw) can turn one circuit from off to on (normally open) or on to off (normally closed).
    SPST-NO—Controllers that are SPST-NO (single pole, single throw) can turn one circuit from off to on (normally open).
    Remote Reset—Remote-reset controllers are best for hard-to-reach locations. To operate, you’ll need to wire the remote reset input terminals, and the sensor must be below the set temperature.
    Mechanical Relay
    For Thermocouple Probe Type
    Total No.
    of Outputs
    Output Type
    Switch
    Designation
    Max. Switching Current
    @ Voltage
    For Probe
    Type
    Reset
    Type
    Input Voltage
    Range, V AC
    Ht.
    Wd.
    Dp.
    Enclosure
    Rating
    Features
    Each
    For 1/16 DIN Panel Cutout Size–For 1 3/4" Ht. × 1 3/4" Wd. Panel Cutout
    B, C, E, J, K, L, N, PL-II, R, S, T1Heating—1 Mechanical RelaySPDT
    2 amp @ 240V ACThermocoupleManual90 to 2641 7/8"1 7/8"3 3/4"IP20, IP30
    Indicator Icons, Remote Reset00000000000000
    B, C, E, J, K, L, N, PL-II, R, S, T2Heating—1 Mechanical Relay
    Heating—1 Mechanical Relay
    SPDT
    SPST-NO
    2 amp @ 240V ACThermocoupleManual90 to 2641 7/8"1 7/8"3 3/4"IP20, IP30
    0000000000000
     
    For 1/4 DIN Panel Cutout Size–For 3 5/8" Ht. × 3 5/8" Wd. Panel Cutout
    B, C, E, J, K, L, N, PL-II, R, S, T2Heating—1 Mechanical Relay
    Heating—1 Mechanical Relay
    SPDT2 amp @ 240V ACThermocoupleManual90 to 2503 3/4"3 3/4"2 9/16"IP20, IP30
    Remote Reset0000000000000
     
    Accessories for Temperature Controllers

    Bench-Top Autotuning Temperature Controllers

    Built into an enclosure, these temperature controllers are protected when sitting on your workbench. Ideal in systems with rapid, unpredictable, or complex temperature changes, they turn heating equipment on and off using a proportional-integral-derivative (PID) control algorithm to make fine adjustments, giving you the most precise and stable temperature control. All work similarly to proportional controllers but gather more variables to calculate the most effective way to return to the target temperature and avoid overshooting it. They also have fuzzy logic to learn your system's behavior and compensate as needed. Use the autotuning function to have the controller cycle and identify the ideal PID variables for your system. These controllers read temperature with a highly sensitive thermocouple probe in critical process applications. Since they reset automatically, they switch off and on again as the temperature fluctuates. Use the keypad to adjust the actuation point, reset point, and other settings.
    The controllers have mechanical relay outputs that actuate circuits directly. All are single pole, single throw (SPST-NO) relays and turn one circuit from off to on (normally open).
    Controllers with 1 Control Zone
    Image of Product. Front orientation. Temperature Controllers. Bench-Top Autotuning Temperature Controllers, Controllers with 1 Control Zone.
    Image of Specification. Front orientation. NEMA 5-20. Bench-Top Autotuning Temperature Controllers, Controllers with 1 Control Zone.

    NEMA

    5-20

    Image of Specification. Front orientation. NEMA 6-20. Bench-Top Autotuning Temperature Controllers.

    NEMA

    6-20

    Mechanical Relay
    For Thermocouple
    Probe Type
    Total No.
    of Outputs
    Output Type
    Switch
    Designation
    Max. Switching Current
    @ Voltage
    Reset
    Type
    Input Voltage,
    V AC
    NEMA
    Type
    Cord Lg.,
    ft.
    Ht.
    Wd.
    Dp.
    Enclosure
    Rating
    Each
    J
    1Heating—1 Mechanical RelaySPST-NO
    16 amp @ 120V ACAutomatic1205-20
    55"5"11"IP50
    00000000000000
    J
    1Heating—1 Mechanical RelaySPST-NO
    16 amp @ 240V ACAutomatic2406-20
    55"5"11"IP50
    0000000000000
    K
    1Heating—1 Mechanical RelaySPST-NO
    16 amp @ 120V ACAutomatic1205-20
    55"5"11"IP50
    00000000000000
    K
    1Heating—1 Mechanical RelaySPST-NO
    16 amp @ 240V ACAutomatic2406-20
    55"5"11"IP50
    00000000000000
    Controllers with 1 Control Zone and High-Limit Control
    Image of Product. Front orientation. Temperature Controllers. Bench-Top Autotuning Temperature Controllers, Controllers with 1 Control Zone and High-Limit Control.
    Controllers with high-limit control let you attach a second thermocouple probe to take the temperature of your heating equipment. If your equipment reaches the high limit, these controllers shut down your heating equipment and won't let it turn back on until you manually reset it, improving the safety of your system.
    Mechanical Relay
    For Thermocouple
    Probe Type
    Total No.
    of Outputs
    Output Type
    Switch
    Designation
    Max. Switching Current
    @ Voltage
    Reset Type
    Input Voltage,
    V AC
    NEMA
    Type
    Cord Lg.,
    ft.
    Ht.
    Wd.
    Dp.
    Enclosure
    Rating
    Each
    J—Heating
    K—High-Limit Control
    1Heating—1 Mechanical RelaySPST-NO
    16 amp @ 120V ACAutomatic, Manual1205-20
    55"8 1/2"11"IP50
    00000000000000000
    K—Heating
    K—High-Limit Control
    1Heating—1 Mechanical RelaySPST-NO
    16 amp @ 120V ACAutomatic, Manual1205-20
    55"8 1/2"11"IP50
    0000000000000000
    Controllers with 2 Control Zones
    Image of Product. Front orientation. Temperature Controllers. Bench-Top Autotuning Temperature Controllers, Controllers with 2 Control Zones.
    Controllers with two control zones let you independently turn heating equipment on and off in two separate areas, each with their own thermocouple input and heating control output.
    Mechanical Relay
    For Thermocouple
    Probe Type
    Total No.
    of Outputs
    Output Type
    Switch
    Designation
    Max. Switching Current
    @ Voltage
    Reset
    Type
    Input Voltage,
    V AC
    NEMA
    Type
    Cord Lg.,
    ft.
    Ht.
    Wd.
    Dp.
    Enclosure
    Rating
    Each
    J
    2Heating—2 Mechanical RelaysSPST-NO
    8 amp @ 120V ACAutomatic1205-20
    55"8 1/2"11"IP50
    00000000000000000
    K
    2Heating—2 Mechanical RelaysSPST-NO
    8 amp @ 120V ACAutomatic1205-20
    55"8 1/2"11"IP50
    0000000000000000

    Proportional Temperature Controllers

    Image of Product. Front orientation. Temperature Controllers. Proportional Temperature Controllers.
    Cycle heaters on and off intermittently to maintain a set temperature in your system. These proportional controllers keep your heater on when your system is below the set temperature, and they turn it off in short cycles when your system nears the set temperature. The short cycles make them more precise and allow less temperature fluctuation than on/off controllers. Use them on electric heaters only—they don't work with valves or solenoids.
    Turn the dial on these controllers to choose your set temperature. They use a highly sensitive thermocouple probe (not included) to read temperature. Their mechanical relay actuates circuits directly. All are SPDT (single pole, double throw) and can turn one circuit from off to on (normally open) or on to off (normally closed). Install these controllers into instrument panels with DIN cutouts.
    All controllers meet American, Canadian, and European safety standards.
    Controllers with Mechanical Relay Heating Output
    Mechanical Relay
    Temp. Control
    Range, ° F
    For Thermocouple
    Probe Type
    Total No.
    of Outputs
    Output Type
    Switch
    Designation
    Max. Switching Current
    @ Voltage
    For Probe
    Type
    Reset
    Type
    Input Voltage
    Range, V AC
    Ht.
    Wd.
    Dp.
    Features
    Each
    For 1/16 DIN Panel Cutout Size–For 1 3/4" Ht. × 1 3/4" Wd. Panel Cutout
    35 to 390K
    1Heating—1 Mechanical RelaySPDT
    3 amp @ 250V ACThermocoupleAutomatic100 to 2402 1/4"1 7/8"3 3/4"LED Status Indicator00000000000000
    35 to 750K
    1Heating—1 Mechanical RelaySPDT
    3 amp @ 250V ACThermocoupleAutomatic100 to 2402 1/4"1 7/8"3 3/4"LED Status Indicator0000000000000
    35 to 2,190K
    1Heating—1 Mechanical RelaySPDT
    3 amp @ 250V ACThermocoupleAutomatic100 to 2402 1/4"1 7/8"3 3/4"LED Status Indicator0000000000000
    50 to 850J
    1Heating—1 Mechanical RelaySPDT
    5 amp @ 240V ACThermocoupleAutomatic200 to 2401 7/8"1 7/8"3 3/4"LED Status Indicator0000000000000
     
    Accessories for Temperature Controllers

    On/Off Temperature Controllers

    The simplest temperature controllers—they turn devices fully on or off, with no middle state, at a given temperature. They’re best as alarms and for systems where temperature changes slowly, but they shouldn’t be used when precise temperature control is necessary. All automatically reset as the temperature fluctuates. To read the temperature, they use a highly sensitive thermocouple probe (not included). And their mechanical relay actuates circuits directly. Controllers are SPDT (single pole, double throw) and can turn one circuit from off to on (normally open) or on to off (normally closed). Mount them into cutouts in instrument panels.
    All meet American, Canadian, and European safety standards.
    Dial Adjustment
    Image of Product. Front orientation. Temperature Controllers. On/Off Temperature Controllers, Dial Adjustment.
    Controllers with a dial let you change the temperature actuation point with a turn. They fit into panels with 1/16 DIN cutouts.
    Mechanical Relay
    100V AC to 240V AC
    Input Voltage
    Temperature Control
    Range
    For Thermocouple
    Probe Type
    Total No.
    of Outputs
    Output Type
    Switch
    Designation
    Max. Switching Current
    @ Voltage
    Reset
    Type
    Enclosure
    Rating
    Each
    For 1/16 DIN Panel Cutout Size–For 1 3/4" Ht. × 1 3/4" Wd. Panel Cutout
    32° F to 1,110° F
    0° C to 600° C
    K
    1Heating—1 Mechanical RelaySPDT
    3 amp @ 250V ACAutomaticIP40
    00000000000000
    32° F to 2,190° F
    0° C to 1,200° C
    K
    1Heating—1 Mechanical RelaySPDT
    3 amp @ 250V ACAutomaticIP40
    0000000000000
     
    Accessories for Temperature Controllers
    Keypad Adjustment
    Image of Product. Front orientation. Temperature Controllers. On/Off Temperature Controllers, Keypad Adjustment.
    Controllers with a keypad let you quickly adjust the temperature actuation point, reset point, and other settings.
    IP64 Enclosure Rating—IP64 rated controllers protect against dust and splashing water.
    Mechanical Relay
    120V AC Input
    Voltage
    240V AC Input
    Voltage
    Temperature Control
    Range
    For Thermocouple
    Probe Type
    Total No.
    of Outputs
    Output Type
    Switch
    Designation
    Max. Switching Current
    @ Voltage
    Reset
    Type
    Enclosure
    Rating
    Each
    Each
    For 1 1/8" Ht. × 2 13/16" Wd. Panel Cutout
    32° F to 990° FJ, K, S
    1Heating—1 Mechanical RelaySPDT
    16 amp @ 240V ACAutomaticIP64
    0000000000000000000000000000
     
    back to top