Temperature Controllers

T675A/B and T678A Temperature Controllers

T675A/B and T678A temperature controllers regulate the temperature of air or liquids in ducts, pipes, tanks, and boilers. Typical uses include control of dampers and valves in heating, cooling, or heating-cooling systems.

T675A/B and T678A temperature controllers regulate the temperature of air or liquids in ducts, pipes, tanks, and boilers. Typical uses include control of dampers and valves in heating, cooling, or heating-cooling systems.

Features & Benefits:
  • T675A has one single-pole, double-throw (SPDT) switch that breaks R-B and makes R-W at the setpoint on temperature rise
  • T675B manual reset low limit has one single-pole, single-throw (SPST) switch that breaks at the setpoint on a temperature fall, and requires manual setting
  • T678A has two single-pole, double-throw (SPDT) switches that operate in sequence
  • T675A models available with adjustable differential
  • T675A and T678A have setpoint adjustment knob on front of case
  • Capillary tubing allows remote mounting of sensing element; models available with various lengths
  • T675A and T678A models available with a fast-response sensing element
  • Controller can be mounted in any position
  • Mounting accessories available for all applications
  • Ambient temperature compensated
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Reference Guides
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Engineering Specifications
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0.17 MB
2/17/2022
0.20 MB
2/17/2022
Installation Instructions
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1.96 MB
2/17/2022
Data Sheet
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SKU
Description
T675A1003/B
Remote Temp Control, 0°F-100°F Range, 1 SPDT, Copper Bulb, 5 ft. Capillary, 3°F-10°F Diff., Bulk Pack
T675A1003/U
Remote Bulb Thermostat, 0 to 100F, 1 SPDT, Copper Bulb, 5ft Capillary, 3 to 10F Differential
T675A1011/B
Remote Temp Control, 0°F-100°F Range, 1 SPDT, Copper Bulb, 5 ft. Capillary, 1°F Fixed Diff, Bulk Pack
T675A1029/B
Remote Temp Control, 0°F-100°F Range, 1 SPDT, Copper Bulb, 20 ft. Capillary, 3°F-10°F Diff., Bulk Pack
T675A1029/U
Remote Bulb Thermostat, 0 to 100F, 1 SPDT, Copper Bulb, 20ft Capillary, 3 to 10F Differential
T675A1045/U
Remote Bulb Thermostat, 0 to 100F, 1 SPDT, SS Bulb, 20ft Capillary, 3 to 10F Differential
T675A1102/U
Remote Bulb Thermostat, 160 to 260F, 1 SPDT, Copper Bulb, 20ft Capillary, 3 to 10F Differential
T675A1136/U
Remote Bulb Thermostat, 0 to 100F, 1 SPDT, Copper Bulb, 20ft Capillary, 1F Fixed Differential
T675A1169/U
Remote Bulb Thermostat, 15 to 35C, 1 SPDT, Copper Bulb, 1.5m Capillary, 1.7 to 5.6C Differential, 125F, Celsius Scale
T675A1243/U
Remote Bulb Thermostat, 160 Fto 260F, 1 SPDT, Copper Bulb, 5.5ft Capillary, 1.0F Differential, Celsius Model