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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Omschrijving Prijs 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-stocknr. 124-1052
FabrikantRS PRO
€ 77,33
Each
Aantal stuks
J Type Thermocouple Relay 1 1 24 V ac -30 → +400 °C 77 x 35mm 0°C +50°C 61mm IP20, IP65 Panel Mount - Screw
RS-stocknr. 497-9017
Fabrikantnummer701060/811-05
FabrikantJumo
€ 128,93
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RTD 1 Relay - 1 115 V ac - - 0°C +55°C - - Panel Mount eTRON -
RS-stocknr. 198-839
FabrikantnummerLR09604-100
FabrikantPyro Controle
€ 148,76
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Aantal stuks
Thermocouple Relay 1 1 90 → 260 V ac - 96 x 96mm -10°C +50°C 53mm IP50 Panel Mount STATOP -
RS-stocknr. 437-0909
Fabrikantnummer40T96-4-00-RR00-301 (EX 40T96-4-00-RR031
FabrikantGefran
€ 275,83
Each
Aantal stuks
- Relay - 1 100 → 240 V ac/dc Gefran 40 96 x 48mm - - 92mm IP65 - 40T96 -
RS-stocknr. 809-1017
FabrikantnummerTC4810-53-110/230VAC
FabrikantTempatron
€ 116,04
Each
Aantal stuks
PT100 - - - 110 → 230 V ac - 48 x 48mm -10°C +50°C 89mm - 1/16 DIN - -
RS-stocknr. 124-1048
FabrikantRS PRO
€ 59,05
Each
Aantal stuks
NTC Relay 1 2 24 V ac/dc -60 → +150 °C 77 x 35mm 0°C +50°C 61mm IP20, IP65 Panel Mount - Screw
RS-stocknr. 124-1055
FabrikantRS PRO
€ 63,94
Each
Aantal stuks
NTC Relay 1 2 24 V ac/dc -60 → +150 °C 77 x 35mm 0°C +50°C 61mm IP20, IP65 Panel Mount - Screw
RS-stocknr. 335-4653
Fabrikantnummer4T-96-4-00-0
FabrikantGefran
€ 193,03
Each
Aantal stuks
- - - - 11 → 27 V ac/dc - 96 x 48mm - - 105mm IP65 - 4T -
RS-stocknr. 124-1050
FabrikantRS PRO
€ 71,71
Each
Aantal stuks
NTC Relay 2 3 24 V ac/dc -60 → +150 °C 77 x 35mm 0°C +50°C 61mm IP20, IP65 Panel Mount - Screw
RS-stocknr. 437-0915
Fabrikantnummer40T96-4-24-RRR0-301 (EX 40T96-4-24-RRR31
FabrikantGefran
€ 307,91
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Aantal stuks
- Relay - 3 100 → 240 V ac/dc Gefran 40 108 x 48mm - - 105mm IP65 - 40T96 -
RS-stocknr. 328-1167
FabrikantnummerE5C2-R40K AC100-240 0-200
FabrikantOmron
€ 146,00
Each
Aantal stuks
K Type Thermocouple Relay - 1 100 → 240 V ac - 48 x 48mm -10°C +55°C 86.7mm IP00, IP40, IP66 - E5C2 -
RS-stocknr. 124-1046
FabrikantRS PRO
€ 54,84
Each
Aantal stuks
NTC Relay 1 1 24 V ac/dc -60 → +150 °C 77 x 35mm 0°C +50°C 61mm IP20, IP65 Panel Mount - Screw
RS-stocknr. 746-3114
FabrikantnummerE5C2-R20J AC100-240 0-300
FabrikantOmron
€ 142,70
Each
Aantal stuks
J Type Thermocouple - - - 100 → 240 V ac 0 → +300 °C 48 x 48mm - - 86.7mm - - E5C2 -
RS-stocknr. 344-120
FabrikantnummerTC4830-02-110/230VAC
FabrikantTempatron
€ 121,61
Each
Aantal stuks
K Type Thermocouple Relay - 1 110 → 230 V ac - 48 x 48mm - - 91mm IP40 1/16 DIN - -
RS-stocknr. 798-4104
Fabrikantnummer40T-72-4-01-RR-00-9
FabrikantGefran
€ 274,62
Each
Aantal stuks
Thermocouple Relay - 2 11 → 27 V dc, 18 → 27 V ac - 72 x 36mm 0°C +50°C 54mm IP65 - 40T72 -
RS-stocknr. 875-1264
FabrikantRS PRO
€ 64,62
Each
Aantal stuks
Thermocouple SSR 1 1 230 V ac 0 → +800 °C 35 x 77mm 0°C +50°C 62.5mm IP65, NEMA 4X 1/16 DIN RS PRO Screw
RS-stocknr. 875-1226
FabrikantRS PRO
€ 182,55
Each
Aantal stuks
Linear, RTD, Thermocouple Relay 1 2 24 V ac/dc - 72 x 72mm 0°C +50°C 87.5mm IP65, NEMA 4X 1/8 DIN RS PRO Screw
RS-stocknr. 875-1239
FabrikantRS PRO
€ 78,16
Each
Aantal stuks
J Type Thermocouple Relay 1 1 230 V ac 0 → +800 °C 72 x 72mm 0°C +50°C 95.5mm IP65, NEMA 4X 1/8 DIN RS PRO Screw
RS-stocknr. 124-1045
FabrikantRS PRO
€ 54,84
Each
Aantal stuks
NTC Relay 1 1 230 V ac -60 → +150 °C 77 x 35mm 0°C +50°C 61mm IP20, IP65 Panel Mount - Screw
RS-stocknr. 913-9927
FabrikantnummerWE00S1EN00
FabrikantCarel
€ 176,53
Each
Aantal stuks
Digital 1 Relay 1 1 230 V ac - 290 x 128mm - - - IP65 Wall Mount - Screw
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