Temperature Controllers

A temperature controller, as the name implies, is a device used to control and monitor temperature. The controller takes input from a temperature sensor, such as a thermocouple, and compares the temperature measurement to the desired set temperature which will then provide the output (such a relay, triac or solid state relay) to a heater or fan.

Types of Temperature Controller

PID Temperature Controller - an on/off process controller that uses a mathematical formula to calculate the difference between the desired temperature setpoint and current process temperature to ensure the process temperature remains as close to the setpoint as possible. PID controllers are effective at dealing with process disturbances that can have an impact on the quality of the product that is being measured.

On-Off Temperature Controller - On-off temperature controllers (also called signallers), are simple temperature control devices. The optimal temperature is pre-set and when it's exceeded the output switches off. When the temperature falls below the optimal pre-set, the output switches on.

Proportional Temperature Controller - Able to increase or throttle back power as required, in a ratio that matches the differential between the current process temperature and the desired temperature range, this proportional control usually takes place only within a defined range of temperatures at either side of the setpoint and is designed to eliminate the cycling associated with an on-off controller.

Peltier Module Controller - Peltier module controllers are temperature controllers designed for reversible cooling and heating control of thermoelectric assemblies, depending on the current direction. They offer a fast and compact temperature control solutions and are ideal for applications that need precise and accurate temperature control.


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Description Price Output Type Supply Voltage Size Number of Inputs Number of Outputs Minimum Operating Temperature Maximum Operating Temperature Temperature Range Control Type Communication Module Available Display Type IP Rating Range Display Colour
RS Stock No. 511-7440
Mfr. Part No.IR33S0LR00
BrandCarel
$224.67
Each
units
- 12 → 24 V ac/dc 76.2 x 34.2mm - - -10°C +50°C - - - - - -50 → +90 °C -
RS Stock No. 783-4715
Mfr. Part No.IR33V9HR20
BrandCarel
$322.88
Each
units
Relay 12 → 24 V ac/dc, 24 V ac/dc, 115 → 230 V ac 76.2 x 34.2mm - 1 -10°C +60°C -199 → +800 (PT100) °C, -199 → +800 (PT1000) °C, -100 → +800 (Type J/K Thermocouple) °C - Yes Single Line IP65 Carel IR33 -
RS Stock No. 745-7949
Mfr. Part No.IR33V7LR20
BrandCarel
$237.09
Each
units
Relay 12 → 24 V ac 76.2 x 34.2mm - 1 - - -50 → +150 (PTC/PT1000) °C, -40 → +150 (NTC-HT) °C - Yes - - Carel IR33 -
RS Stock No. 877-1463
Mfr. Part No.IC+ 902 230V 8A + NTC
BrandEliwell
$186.63
Each
units
Relay 230 V 74 x 32mm 1 1 -5°C +55°C - - - - IP65 - -
RS Stock No. 877-1454
Mfr. Part No.IC+ 902 12V 8A + NTC
BrandEliwell
$174.05
Each
units
Relay 12 V 74 x 32mm 1 1 -50°C +110°C - - - - IP65 - -
RS Stock No. 905-5734
Mfr. Part No.PXU10030
BrandRed Lion
$255.02
Each
units
Relay 100 240 V ac 48 x 95.8mm - 1 0°C +50°C - PID Function Only Yes LCD IP65 - Orange/Green
RS Stock No. 905-5737
Mfr. Part No.PXU20020
BrandRed Lion
$232.17
Each
units
SSR 100 → 240 V ac 48 x 48mm - 1 0°C +50°C - PID Function Only Yes LCD IP65 - Orange/Green
RS Stock No. 745-7964
Mfr. Part No.IR33V9MR20
BrandCarel
$346.62
Each
units
Relay 24 V ac/dc 76.2 x 34.2mm - 1 - - -199 → +800 (PT100/1000) °C, -50 → +150 (PTC) °C, -40 → +150 (NTC-HT) °C - Yes - - Carel IR33 -
RS Stock No. 124-1076
BrandRS PRO
$109.38
Each
units
- 24 V ac/dc 77 x 35mm 1 - 0°C +50°C - - - - IP20, IP65 -60 → +150 °C -
RS Stock No. 783-4709
Mfr. Part No.IR33W7HR20
BrandCarel
$268.59
Each
units
Relay 12 → 24 V ac/dc, 24 V ac/dc, 115 → 230 V ac 76.2 x 34.2mm - 2 -10°C +60°C -50 → +150 (PTC 1000) °C, -50 → +150 (PTC) °C, -50 → +90 (NTC) °C, -40 → +150 (NTC-HT) °C - Yes Single Line IP65 Carel IR33 -
RS Stock No. 790-3616
Mfr. Part No.3504/CC/VH/X/XX/1/1/XXX/G/D4/LO/R4
BrandEurotherm
$2,199.28
Each
units
Analogue, Changeover Relay, Logic, Relay 100 → 230 V ac 96 x 96mm - 6 0°C +50°C -210 → +1200 (Type J Thermocouple) °C, -200 → +1300 (Type N Thermocouple) °C, -200 → +1372 (Type K Thermocouple) °C, -200 → +400 (Type T Thermocouple) °C, -200 → +850 (Type PT100) °C, -200 → +900 (Type L Thermocouple) °C, -50 → +1700 (Type R Thermocouple) °C, -50 → +1768 (Type S Thermocouple) °C, 0 → +1369 (Type Platinel II Thermocouple) °C, 0 → +1820 (Type B Thermocouple) °C - Yes Standard LCD with Backlight IP65 Eurotherm 3504 Green
RS Stock No. 124-1075
BrandRS PRO
$99.52
Each
units
- 230 V ac 77 x 35mm 1 - 0°C +50°C - - - - IP20, IP65 -60 → +150 °C -
RS Stock No. 121-4226
Mfr. Part No.IR33B9MR20
BrandCarel
$281.51
Each
units
Analogue, Relay 24 V ac/dc 76.2 x 34.2mm 2 (Analogue), 2 (Digital) 2 -10°C +50°C -199 → +800 (PT100) °C, -199 → +800 (PT1000) °C, -100 → +800 (Type J/K Thermocouple) °C - Yes LED IP10, IP65 Carel IR33 -
RS Stock No. 511-7478
Mfr. Part No.IR33C0LR00
BrandCarel
$249.43
Each
units
- 12 → 24 V ac 76.2 x 34.2mm - - -10°C +50°C - - - - - -50 → +90 °C -
RS Stock No. 438-8455
Mfr. Part No.CONV0/10A0
BrandCarel
$120.19
Each
units
- - - - - - - - - - - - - -
RS Stock No. 124-1058
BrandRS PRO
$165.03
Each
units
Relay 230 V ac 77 x 35mm 1 2 0°C +50°C - - - - IP20, IP65 -200 → +600 (PT100) °C, -99.9 → +300 (PT100) °C -
RS Stock No. 124-1060
BrandRS PRO
$142.83
Each
units
Relay 24 V ac 77 x 35mm 1 1 0°C +50°C - - - - IP20, IP65 0 → +1300 (K Type Thermocouple) °C, 0 → +1700 (R Type Thermocouple) °C, 0 → +1700 (S Type Thermocouple) °C, 0 → +400 (T Type Thermocouple) °C, 0 → +600 (J Type Thermocouple) °C -
RS Stock No. 511-7456
Mfr. Part No.IR33Y0LR00
BrandCarel
$215.61
Each
units
- 12 → 24 V ac 76.2 x 34.2mm - - -10°C +50°C - - - - - -50 → +90 °C -
RS Stock No. 106-6230
Mfr. Part No.E5EC-QX2ABM-000
BrandOmron
$418.67
Each
units
Voltage 100 → 240 V ac 48 x 96mm 3 1 -10°C +55°C -200 → +1300 (Type K Thermocouple) °C, -200 → +1300 (Type N Thermocouple) °C, -200 → +600 (Type E Thermocouple) °C, -200 → +850 (Pt100) °C, -199.9 → +400 (Type T Thermocouple) °C, -199.9 → +400 (Type U Thermocouple) °C, -199.9 → +500 (JPt100) °C, -100 → +850 (Type J Thermocouple) °C, -100 → +850 (Type L Thermocouple) °C, 0 → +1300 (Type PLII Thermocouple) °C, 0 → +1700 (Type R Thermocouple) °C, 0 → +1700 (Type S Thermocouple) °C, 0 → +2300 (Type W Thermocouple) °C, +100 → +1800 (Type B Thermocouple) °C - - 11-Segment Digital Display IP00, IP20, IP66 Omron E5EC White
RS Stock No. 106-5983
Mfr. Part No.E5EC-RX2DBM-000
BrandOmron
$473.22
Each
units
Relay 24 V ac/dc 48 x 96mm 3 1 -10°C +55°C -200 → +1300 (Type K Thermocouple) °C, -200 → +1300 (Type N Thermocouple) °C, -200 → +600 (Type E Thermocouple) °C, -200 → +850 (Pt100) °C, -199.9 → +400 (Type T Thermocouple) °C, -199.9 → +400 (Type U Thermocouple) °C, -199.9 → +500 (JPt100) °C, -100 → +850 (Type J Thermocouple) °C, -100 → +850 (Type L Thermocouple) °C, 0 → +1300 (Type PLII Thermocouple) °C, 0 → +1700 (Type R Thermocouple) °C, 0 → +1700 (Type S Thermocouple) °C, 0 → +2300 (Type W Thermocouple) °C, +100 → +1800 (Type B Thermocouple) °C - - 11-Segment Digital Display IP00, IP20, IP66 Omron E5EC White