Elitech EK-3021 Digital Temperature Controller Refrigeration System with Defrost Mode

Elitech UKSKU: EK-3021

In stock


Elitech EK-3021 is a temperature controller with touch screen buttons. It is suitable for temperature control of cooling and defrosting output. With temperature measurement, temperature display, temperature control, temperature correction, forced defrosting, temperature overrun alarm and sensor fault alarm function. One-touch restoration of original setting values for easy re-adjustment of parameters.

It has the function of defrosting cycle power-off memory, even if the equipment is unexpectedly powered off, the defrosting can still be started in time to ensure the normal operation and cooling efficiency of the unit.

Due to its touch buttons, Elitech equipped the EK series temperature controller with a key lock function to avoid accidental touches that may cause the parameters to change.

Elitech EK-3021 temperature controller is suitable for temperature control of medium and low-temperature cold storage, freezer, operating console and other refrigeration equipment.

Two-way sensor inputs: temperature probe sensor and defrost probe sensor.
Two-way control outputs: refrigeration and defrosting equipment output.

Elitech EK-3021 Function

Model Control Output Signal Input Others
Refrigeration (10A) Defrosting (10A)  Fan (10A)  Temperature Sensor Defrost Sensor Over-temperature alarm



Model EK-3021
Operating Voltage 220VAC±10%; 50/60Hz
Overall Power Consumption <5W
Temperature Measurement Range -40℃~85℃
Temperature Control Range -40℃~99℃
Temperature Measurement Accuracy ±1℃(-30℃~50℃), Others ±2℃;
Display Resolution 1℃/0.1℃
Product Size 85.0×35.0×63.8 (mm)
Mounting Dimension 71×29 (mm)
Rated Current of Output Relay 10A/220VAC



  • Pass EMC test, industrial level four test, stable and reliable
  • High precision capacitive touch keys for greater reliability
  • One-piece front panel design for greater protection against moisture and dust
  • High brightness digital tube display for the larger display area
  • Single-click to complete the general settings directly, no need to enter the menu


  • Cold storage
  • Freezer,
  • Operating console
  • Refrigeration equipment

    EK Series Temperature Controller Functions Comparison

    Model Cooling or Heating Alarm Defrost Fan Temperature Probe Defrost Probe Communication Function
    EK-3010 / / / /
    EK-3020 / / / /
    EK-3021 / / /
    EK-3030 / /
    EK-3030E / 485 interface


    Elitech Two-Way Output Temperature Controller Comparison

    Elitech Two-Way Output Temperature Controller Comparison - Elitech UK

    Elitech EK-3021 Temperature Controller Thermostat User Manual
    Elitech EK-3021 Temperature Controller Thermostat CE Certification

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