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庫存編號 339-0104
製造零件編號DTC410-02-ML
BrandTempatron
HK$1,298.00
單位
RTD - - - 10 → 32 V ac/dc -99 → +400 °C 48 x 48mm -10°C +50°C 84.5mm - - - -
RS庫存編號 344-619
製造零件編號TC4810-52-110/240VAC
BrandTempatron
HK$790.02
單位
PT100 - - - 110 → 240 V ac 0 → +100 °C 48 x 48mm -10°C +50°C 89mm - 1/16 DIN - -
RS庫存編號 348-144
製造零件編號FTST400K-110/240VAC
BrandTempatron
HK$947.20
單位
Thermocouple - - - 110 → 240 V ac 0 → +400 °C 48 x 48mm -10°C +50°C 112mm - - - -
RS庫存編號 344-546
製造零件編號TC4810-01-110/240VAC
BrandTempatron
HK$825.55
單位
K Type Thermocouple - - - 110 → 240 V ac 0 → +200 °C 48 x 48mm -10°C +50°C 89mm - 1/16 DIN - -
RS庫存編號 339-0097
製造零件編號DTC410-01-MH
BrandTempatron
HK$1,298.00
單位
Thermocouple - - - 90 → 260 V ac -99 → +999 °C 48 x 48mm -10°C +50°C 84.5mm - - - -
RS庫存編號 809-1041
製造零件編號FTST1200K-110/240VAC
BrandTempatron
HK$874.36
單位
K Type Thermocouple - - - 230 V ac - 48 x 48mm -10°C +50°C 112mm - - - -
RS庫存編號 339-0075
製造零件編號DTC410-01-ML
BrandTempatron
HK$1,298.00
單位
Thermocouple - - - 10 → 32 V ac/dc -99 → +999 °C 48 x 48mm -10°C +50°C 84.5mm - - - -
RS庫存編號 809-1045
製造零件編號MINITHERM6-MCU-110V
BrandTempatron
HK$250.94
單位
NTC - - - 230 V ac - 70 x 45mm -20°C +65°C 22mm - - - -
RS庫存編號 809-1054
製造零件編號MINITHERM6-MCU-230V
BrandTempatron
HK$332.68
單位
NTC - - - 230 V ac - 70 x 45mm -20°C +65°C 22mm - - - -
RS庫存編號 344-603
製造零件編號TC4830-51-110/230VAC
BrandTempatron
HK$1,090.81
單位
PT100 Relay - 1 110 → 230 V ac - 48 x 48mm - - 91mm IP40 1/16 DIN - -
RS庫存編號 344-552
製造零件編號TC4810-02-110/240VAC
BrandTempatron
HK$750.50
單位
K Type Thermocouple - - - 110 → 240 V ac 0 → +400 °C 48 x 48mm -10°C +50°C 89mm - 1/16 DIN - -
RS庫存編號 344-568
製造零件編號TC4810-04-110/240VAC
BrandTempatron
HK$1,024.15
單位
K Type Thermocouple - - - 110 → 240 V ac 0 → +800 °C 48 x 48mm -10°C +50°C 89mm - 1/16 DIN - -
RS庫存編號 344-580
製造零件編號TC4830-04-110/230VAC
BrandTempatron
HK$979.00
單位
K Type Thermocouple Relay - 1 110 → 230 V ac - 48 x 48mm - - 91mm IP40 1/16 DIN - -
RS庫存編號 809-1013
製造零件編號TC4810-03-110/230VAC
BrandTempatron
HK$1,101.93
單位
K Type Thermocouple - - - 110 → 230 V ac - 48 x 48mm -10°C +50°C 89mm - 1/16 DIN - -
RS庫存編號 339-0132
製造零件編號DTC410-02-MH
BrandTempatron
HK$1,439.02
單位
RTD - - - 90 → 260 V ac -99 → +400 °C 48 x 48mm -10°C +50°C 84.5mm - - - -
RS庫存編號 809-1039
製造零件編號TC4830-54-110/230VAC
BrandTempatron
HK$977.80
單位
PT100 - - - 110 → 230 V ac - 48 x 48mm -10°C +50°C 89mm - 1/16 DIN - -
RS庫存編號 376-3704
製造零件編號TC4810-05-110/230VAC
BrandTempatron
HK$1,024.15
單位
K Type Thermocouple Relay - 1 110 → 230 V ac - 48 x 48mm -10°C +50°C 89mm IP40 1/16 DIN - -
RS庫存編號 344-574
製造零件編號TC4830-01-110/230VAC
BrandTempatron
HK$881.10
單位
K Type Thermocouple Relay - 1 110 → 230 V ac - 48 x 48mm - - 91mm IP40 1/16 DIN - -
RS庫存編號 344-625
製造零件編號TC4830-52-110/230VAC
BrandTempatron
HK$881.10
單位
- Relay - 1 110 → 230 V ac - 48 x 48mm - - 91mm IP40 1/16 DIN - -
RS庫存編號 809-1048
製造零件編號FTST200K-110/240VAC
BrandTempatron
HK$874.36
單位
K Type Thermocouple - - - 230 V ac - 48 x 48mm -10°C +50°C 112mm - - - -