Selec TC303 Temperature Controller


80 in stock


Selec TC303 Temperature Controller is an auto-tuning PID temperature controller with the selectable thermocouple, RTD up to two outputs. This Selec temperature controller can be configured as on/off or PID control and alarm outputs.

Application: Jacketed pans, Tracer lines, Tanks, Acid baths, Hot water storage calorifiers, Heater batteries, Unit heaters.
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Selec TC303 Temperature Controller is a powerful digital meter for temperature control with provision for connecting with a thermocouple or RTD sensor to receive a temperature signal, then transmits the data output to standard analog signal 4-20mA/0-5V. This Digital temperature controller can directly display the current temperature.
Features of Selec Temperature Controller:

  • TC303 Temperature Controller has high Performance.
  • Single Display, 3 Digit, 7 Segment LED
  • This TC303 Temperature Controller has LED Status indicator: Relay ON
  • 3 Front panel control buttons
  • TC/RTD Inputs
  • PID, ON/OFF Control
  • This Selec Temperature Controller has Single Setpoint
  • Control Output: Relay or SSR Drive

Models Available:

  • Selec TC303 A Temperature Controller
  • Selec TC303 AX Temperature Controller
  • Selec TC513 AX Temperature Controller
  • Selec TC203 AX Temperature Controller

Additional information

Weight 1 kg


Model No

TC 303 A, TC 303 A-1, TC 303 AX, TC303AX-24V

Measuring Parameters


J type Thermocouple

-199 to 750 C

T type Thermocouple

-199 to 400 C

K type Thermocouple

-199 to 999 C

R type Thermocouple

0 to 999 C

S type Thermocouple

0 to 999 C


-150 to 850 C


For J, K & T inputs: 0.25% of F.S. ±1 o For R & S inputs: 0.5% of F.S. ±2 (20 min of warm up time for TC input) o For RTD inputs: 0.1% of F.S. ±1 (F.S. = Full Scale)

Operating Temperature

0 to 50℃

Storage Temperature

-20°C to 75°C


0% to 95% rh


Filter (FTC) : 0.2 to 10.0 sec

Sampling Time

250 ms

Engineering Units

°C / °F Selectable


180 Grams

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Temperature Controller

Selec TC303 Temperature Controller


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