On / Off Temperature Controllers

On-off temperature controllers (also called signallers), are simple temperature control devices. An optimal temperature is preset and when it's exceeded the output switches off. When the temperature falls below the optimal preset, the output switches on. The output value has only an 'on' or 'off' option, with no middle state.

What are on-off temperature controllers used for?

On-off temperature controllers are used for monitoring purposes in heating environments. They prevent rapid increases in temperature that may cause damage to contactors and valves by cutting off the power. These controllers are often used where there isn't a need for precision temperature control. They are beneficial in applications where the system can't handle continuous interruptions. On-off controllers are found in temperature alarms and thermostats.

Types of on-off temperature controllers

A typical example of an on-off temperature controller is the thermostat in a heating system. If the temperature drops below the preset level, the heating system will switch on, and vice versa. Another example is that of a limit controller. It protects a system against overheating or overcooling by shutting down the power if the temperature exceeds a preset level.


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Description Price Input Type Output Type Number of Inputs Number of Outputs Supply Voltage Range Size Minimum Operating Temperature Maximum Operating Temperature Panel Depth IP Rating Mounting Type Priced to Clear Series
RS Stock No. 339-0097
Mfr. Part No.DTC410-01-MH
BrandTempatron
£124.56
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 376-3704
Mfr. Part No.TC4810-05-110/230VAC
BrandTempatron
£86.97
Each
Units
K Type Thermocouple Relay - 1 110 230 V ac - 48 x 48mm -10°C +50°C 89mm IP40 1/16 DIN - -
RS Stock No. 348-144
Mfr. Part No.FTST400K-110/240VAC
BrandTempatron
£86.97
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 344-546
Mfr. Part No.TC4810-01-110/240VAC
BrandTempatron
£86.97
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 344-552
Mfr. Part No.TC4810-02-110/240VAC
BrandTempatron
£85.32
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 339-0132
Mfr. Part No.DTC410-02-MH
BrandTempatron
£124.56
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 344-619
Mfr. Part No.TC4810-52-110/240VAC
BrandTempatron
£86.97
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 346-378
Mfr. Part No.FPRT100-110/240VAC
BrandTempatron
£86.97
Each
Units
RTD - - - 110 240 V ac -50 +100 °C 48 x 48mm -10°C +50°C 112mm - - - -
RS Stock No. 339-0075
Mfr. Part No.DTC410-01-ML
BrandTempatron
£124.56
Each
Units
Thermocouple - - - 10 32 V ac/dc -99 +999 °C 48 x 48mm -10°C +50°C 84.5mm - - - -
RS Stock No. 344-568
Mfr. Part No.TC4810-04-110/240VAC
BrandTempatron
£86.97
Each
Units
K Type Thermocouple - - - 110 240 V ac 0 +800 °C 48 x 48mm -10°C +50°C 89mm - 1/16 DIN - -
RS Stock No. 344-596
Mfr. Part No.TC4810-51-110/230VAC
BrandTempatron
£87.10
Each
Units
PT100 Relay - 1 110 230 V ac - 48 x 48mm -10°C +50°C 89mm IP40 1/16 DIN - -
RS Stock No. 344-625
Mfr. Part No.TC4830-52-110/230VAC
BrandTempatron
£92.52
Each
Units
- Relay - 1 110 → 230 V ac - 48 x 48mm - - 91mm IP40 1/16 DIN - -
RS Stock No. 339-0104
Mfr. Part No.DTC410-02-ML
BrandTempatron
£124.56
Each
Units
RTD - - - 10 32 V ac/dc -99 +400 °C 48 x 48mm -10°C +50°C 84.5mm - - - -
RS Stock No. 344-574
Mfr. Part No.TC4830-01-110/230VAC
BrandTempatron
£92.52
Each
Units
K Type Thermocouple Relay - 1 110 → 230 V ac - 48 x 48mm - - 91mm IP40 1/16 DIN - -
RS Stock No. 344-120
Mfr. Part No.TC4830-02-110/230VAC
BrandTempatron
£92.52
Each
Units
K Type Thermocouple Relay - 1 110 → 230 V ac - 48 x 48mm - - 91mm IP40 1/16 DIN - -
RS Stock No. 809-1032
Mfr. Part No.TC4830-03-110/230VAC
BrandTempatron
£39.38
Each
Units
K Type Thermocouple - - - 110 → 230 V ac - 48 x 48mm -10°C +50°C 89mm - 1/16 DIN - -
RS Stock No. 809-1017
Mfr. Part No.TC4810-53-110/230VAC
BrandTempatron
£96.07
Each
Units
PT100 - - - 110 → 230 V ac - 48 x 48mm -10°C +50°C 89mm - 1/16 DIN - -
RS Stock No. 809-1013
Mfr. Part No.TC4810-03-110/230VAC
BrandTempatron
£96.07
Each
Units
K Type Thermocouple - - - 110 → 230 V ac - 48 x 48mm -10°C +50°C 89mm - 1/16 DIN - -
RS Stock No. 809-1048
Mfr. Part No.FTST200K-110/240VAC
BrandTempatron
£89.66
Each
Units
K Type Thermocouple - - - 230 V ac - 48 x 48mm -10°C +50°C 112mm - - - -
RS Stock No. 809-1023
Mfr. Part No.TC4810-02-24VAC/DC
BrandTempatron
£100.98
Each
Units
Thermocouple - - - 24 V ac/dc - 48 x 48mm -10°C +50°C 89mm - 1/16 DIN - -