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. 348-1783
Fabrikantnummer40T96-4-00-RR00-000 (EX 40T96-4-00-RR000
FabrikantGefran
€ 290,07
Each
Aantal stuks
- Relay - 2 11 → 27 V ac/dc - 108 x 48mm - - 105mm IP65 - 40T96 -
RS-stocknr. 877-1466
FabrikantnummerIC+ 902 230V 15A + NTC
FabrikantEliwell
€ 85,52
Each
Aantal stuks
NTC, PTC Relay 1 1 230 V - 74 x 32mm -5°C +55°C 59mm IP65 Panel Mount ICPlus Screw
RS-stocknr. 117-6658
FabrikantnummerEMPLUS 600 PT100/TCJ-K 230Vac
FabrikantEliwell
€ 92,14
Each
Aantal stuks
Analogue - 1 - 230 V ac -150 → +650 (PT100) °C, -40 → +750 (TCJ-K) °C 74 x 32mm -5°C +55°C 59mm - Panel Mount EMPLUS 600 Lead Wire
RS-stocknr. 762-2146
FabrikantnummerID+971-230V+NTC
FabrikantEliwell
€ 239,67
Each
Aantal stuks
NTC, PTC, RTD Digital 2 1 230 V -55 → +140 °C 74 x 32mm -5°C +55°C 60mm IP65 - IDPlus -
RS-stocknr. 511-7440
FabrikantnummerIR33S0LR00
FabrikantCarel
€ 113,97
Each
Aantal stuks
NTC - - - 12 → 24 V ac/dc -50 → +90 °C 76.2 x 34.2mm -10°C +50°C 94mm - - IR33 -
RS-stocknr. 339-0132
FabrikantnummerDTC410-02-MH
FabrikantTempatron
€ 158,42
Each
Aantal stuks
RTD - - - 90 → 260 V ac -99 → +400 °C 48 x 48mm -10°C +50°C 84.5mm - - - -
RS-stocknr. 613-7805
Fabrikantnummer701060/821-02
FabrikantJumo
€ 292,90
Each
Aantal stuks
Thermocouple 1 Relay - 1 230 V ac - - 0°C +55°C - - Panel Mount eTRON -
RS-stocknr. 500-1137
Fabrikantnummer701050/831-31
FabrikantJumo
€ 116,28
Each
Aantal stuks
Voltage 1 Relay - 1 12 → 24 V c.c. / 24 V c.a -50 → +180 °C 90 x 22.5mm 0°C +55°C - - DIN Rail eTRON -
RS-stocknr. 339-0097
FabrikantnummerDTC410-01-MH
FabrikantTempatron
€ 158,42
Each
Aantal stuks
Thermocouple - - - 90 → 260 V ac -99 → +999 °C 48 x 48mm -10°C +50°C 84.5mm - - - -
RS-stocknr. 124-1075
FabrikantRS PRO
€ 53,41
Each
Aantal stuks
NTC - 1 - 230 V ac -60 → +150 °C 77 x 35mm 0°C +50°C 61mm IP20, IP65 Panel Mount - Screw
RS-stocknr. 809-1045
FabrikantnummerMINITHERM6-MCU-110V
FabrikantTempatron
€ 32,70
Each
Aantal stuks
NTC - - - 230 V ac - 70 x 45mm -20°C +65°C 22mm - - - -
RS-stocknr. 745-7942
FabrikantnummerPJEZS0A000
FabrikantCarel
€ 99,20
Each
Aantal stuks
NTC - - - 230 V ac -50 → +90 °C 36 x 81mm - - 61mm - - PJ Easy -
RS-stocknr. 376-3704
FabrikantnummerTC4810-05-110/230VAC
FabrikantTempatron
€ 114,72
Each
Aantal stuks
K Type Thermocouple Relay - 1 110 → 230 V ac - 48 x 48mm -10°C +50°C 89mm IP40 1/16 DIN - -
RS-stocknr. 124-1076
FabrikantRS PRO
€ 53,41
Each
Aantal stuks
NTC - 1 - 24 V ac/dc -60 → +150 °C 77 x 35mm 0°C +50°C 61mm IP20, IP65 Panel Mount - Screw
RS-stocknr. 809-0975
FabrikantnummerIREVC7HN00
FabrikantCarel
€ 178,82
Each
Aantal stuks
NTC - - - 230 V ac - 76.2 x 34.7mm - - 79.5mm - - IR33+ -
RS-stocknr. 344-574
FabrikantnummerTC4830-01-110/230VAC
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. 613-7798
Fabrikantnummer701540/831-02
FabrikantJumo
€ 108,43
Each
Aantal stuks
Current 1 Relay - 1 230 V ac - 76 x 36 mmmm 0°C +55°C - IP20, IP65 Panel Mount di eco -
RS-stocknr. 500-1165
Fabrikantnummer701060/832-31
FabrikantJumo
€ 128,93
Each
Aantal stuks
Current 2 Relay - 2 12 → 24 V dc, 24 V ac - 76 x 36mm 0°C +55°C 56mm - Panel Mount eTRON -
RS-stocknr. 762-2149
FabrikantnummerID+974-12V+NTC
FabrikantEliwell
€ 155,14
Each
Aantal stuks
NTC, PTC, RTD Digital 2 1 12 V -55 → +140 °C 74 x 32mm -5°C +55°C 60mm IP65 - IDPlus -
RS-stocknr. 344-568
FabrikantnummerTC4810-04-110/240VAC
FabrikantTempatron
€ 120,88
Each
Aantal stuks
K Type Thermocouple - - - 110 → 240 V ac 0 → +800 °C 48 x 48mm -10°C +50°C 89mm - 1/16 DIN - -
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