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 Series Termination Type
RS Stock No. 497-9001
Mfr. Part No.701060/811-31
BrandJumo
TWD4,958.00
Each
units
RTD 1 Relay - 1 12 → 24 V dc, 24 V ac - 76 x 36mm 0°C +55°C 56mm - Panel Mount eTRON -
New
RS Stock No. 201-1667
Mfr. Part No.00721353
BrandJumo
TWD4,369.00
Each
units
PT100, Thermocouple Analogue Relay 5 2 230 V - 90mm x 21.5mmmm - - - - - eTRON T100 -
RS Stock No. 467-131
Mfr. Part No.701061/822-32/000
BrandJumo
TWD9,509.00
Each
units
RTD 4 Relay - 3 12 24 V ac/dc - 76 x 36 mmmm 0°C +55°C - - Panel Mount eTRON M100 -
RS Stock No. 497-8979
Mfr. Part No.701050/811-31
BrandJumo
TWD4,404.00
Each
units
RTD 1 Relay - 1 12 → 24 V dc - 93.5 x 22.5mm 0°C +55°C 61.6mm IP20 DIN Rail eTRON -
RS Stock No. 497-9017
Mfr. Part No.701060/811-05
BrandJumo
TWD4,958.00
Each
units
RTD 1 Relay - 1 115 V ac - - 0°C +55°C - - Panel Mount eTRON -
RS Stock No. 500-1143
Mfr. Part No.701050/821-31
BrandJumo
TWD4,404.00
Each
units
Thermocouple 1 Relay - 1 12-24 V dc, 24 V ac 0 → 500 °C 90 x 22.5mm 0°C +500°C - - DIN Rail eTRON -
RS Stock No. 613-7798
Mfr. Part No.701540/831-02
BrandJumo
TWD5,156.00
Each
units
Current 1 Relay - 1 230 V ac - 76 x 36 mmmm 0°C +55°C - IP20, IP65 Panel Mount di eco -
RS Stock No. 613-7675
Mfr. Part No.701531/888-23
BrandJumo
TWD8,152.00
Each
units
Current, RTD, Thermocouple, Voltage 1 Logic, 2 Relay - 3 110 240 V ac -200 +850 °C 96 x 48mm 0°C +55°C 100mm - Panel Mount di 08 -
New
RS Stock No. 201-1668
Mfr. Part No.00721354
BrandJumo
TWD4,369.00
Each
units
PT100, Thermocouple Analogue Relay 5 2 230 V - 90mm x 21.5mmmm - - - - - eTRON T100 -
RS Stock No. 497-8985
Mfr. Part No.701050/811-05
BrandJumo
TWD4,771.00
Each
units
RTD 1 Relay - 1 115 V ac - 93.5 x 22.5mm 0°C +55°C 61.6mm IP20 DIN Rail eTRON -
New
RS Stock No. 201-1663
Mfr. Part No.00718287
BrandJumo
TWD4,939.00
Each
units
PT100, Thermocouple Analogue Relay 5 2 230 V - 90mm x 21.5mmmm - - - - - eTRON T100 -
RS Stock No. 500-1109
Mfr. Part No.701060/832-02
BrandJumo
TWD4,958.00
Each
units
Current 2 Relay - 2 230 V ac - - 0°C +55°C - - Panel Mount eTRON -
RS Stock No. 500-1036
Mfr. Part No.701050/821-02
BrandJumo
TWD4,404.00
Each
units
Thermocouple 1 Relay - 1 230 V ac 0 → 500 °C 90 x 22.5mm 0°C +500°C - - DIN Rail eTRON -
RS Stock No. 668-3036
Mfr. Part No.701530/888-22
BrandJumo
TWD7,784.00
Each
units
Current, RTD, Thermocouple, Voltage 1 Logic, 1 Relay - 2 20 → 53 V ac/dc -200 → +850 °C 48 x 24mm 0°C +55°C 100mm - Panel Mount di 32 -
RS Stock No. 613-7805
Mfr. Part No.701060/821-02
BrandJumo
TWD10,890.00
Each
units
Thermocouple 1 Relay - 1 230 V ac - - 0°C +55°C - - Panel Mount eTRON -
New
RS Stock No. 201-1669
Mfr. Part No.00721355
BrandJumo
TWD4,369.00
Each
units
PT100, Thermocouple Analogue Relay 5 2 230 V - 90mm x 21.5mmmm - - - - - eTRON T100 -
RS Stock No. 613-7782
Mfr. Part No.701540/821-02
BrandJumo
TWD3,750.00
Each
units
Thermocouple 1 Relay - 1 230 V ac - 76 x 36 mmmm 0°C +55°C - IP20, IP65 Panel Mount di eco -
New
RS Stock No. 201-1666
Mfr. Part No.00721352
BrandJumo
TWD4,369.00
Each
units
PT100, Thermocouple Analogue Relay 5 2 230 V - 90mm x 21.5mmmm - - - - - eTRON T100 -
RS Stock No. 500-1159
Mfr. Part No.701050/831-02
BrandJumo
TWD4,404.00
Each
units
Current 1 Relay - 1 230 V ac 0 → 100 °C 90 x 22.5 mmmm - - - - DIN Rail eTRON -
RS Stock No. 497-8991
Mfr. Part No.701050/811-02
BrandJumo
TWD4,404.00
Each
units
RTD 1 Relay - 1 230 V ac - 93.5 x 22.5mm 0°C +55°C 61.6mm IP20 DIN Rail eTRON -