Series-TS3

Digital Temp Switch for Heating/Cooling Control – Field-selectable Units

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Models In Stock

Field-selectable units and probes for flexible setup.
Built-in real time clock enables HACCP logging of alarms.
Defrost cycle starts by time or via front panel keys.
Configuration key allows fast multi-unit programming setup.

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Series-TS3

From ^$ 80.30

Models In Stock

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4 Variations available

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Data Sheet

Product Overview

Accuracy ± 1 %
Applications Heat and Energy Systems, HVAC
Compliance CE, cUR, UR
Control Type On/Off
Display Color N/A
Display Note 3 digits plus sign
Display Type 3 Digit LED
Enclosure Ratings IP65
Horsepower Rating 1 hp @ 240 Vac
Input Type Thermistor
Memory Backup Non-Volatile
Operating Temperature, Max 131 °F
Operating Temperature, Min 32 °F
Output Detail Relay
Scale N/A
Sensor Type Thermistor
Switch Note R1 SPDT relay resistive load 16A, inductive load 10 FLA, 60 LRA @ 240 VAC
Switch Rating 16A; 10 FLA, 60 LRA @ 240 Vac
Switch Type SPDT NO/NC, Selectable
Temperature Measurement Range PTC: -50 to 150 °C, NTC: -50 to 110 °C
Temperature Probe Style N/A
Temperature Resolution 0.1 °F

The DwyerOmega Series TS3 is a versatile digital temperature switch designed for on/off heating and cooling control with field-selectable units and probe types—helping reduce the number of different parts you need to stock. It’s ideal for applications in refrigerators, chillers, food service equipment, and medical sterilization where accuracy, flexibility, and regulatory compliance are essential.

What sets the TS3 apart is its built-in real-time clock which supports HACCP logging of temperature alarms—whether due to setpoint exceedance, probe issues, or loss of power.

It also offers a defrost cycle that can be initiated by schedule or manually via the front panel, useful for refrigeration systems that need periodic defrosting.

Power flexibility is another strong point: the TS3 is offered in multiple power supply options (115 VAC, 230 VAC, 12 VAC/VDC, and 24 VAC/VDC), so you can deploy it in a wide variety of set-ups without worrying about matching your power infrastructure.

Featuring ±1% full scale accuracy, a 3-digit display plus sign, non-volatile memory (to retain settings after power loss), and a user interface that enables easy configuration, it’s built to provide reliable service in demanding environments.

Backed by DwyerOmega's reputation for quality, the TS3 is a solid choice when you want a temperature switch that does more than just toggle—it logs, adapts, and fits into diverse settings—all while giving you confidence in its readings and durability.