Brand new SDX fan speed controllers

Continuously variable speed controller for AC fans

Continuously variable speed controller for AC fans
We would like to introduce the brand new SDX fan speed controllers, which will replace the good old MTX series. The SDX infinitely variable fan speed controllers regulate the speed of small, single phase AC motors up to 3 Amps.
Not only has the design of the enclosure been modernised, but also the electronics are brand new and offer many benefits. Especially the quieter motor operation at low speed is remarkable.

Key features

  1. Infinitely variable fan speed control: SDX variable speed controllers use phase angle control (TRIAC technology) to reduce the motor voltage and control the fan speed
  2. Reduced installation time: the screwless connectors reduce wiring and installation time. They eliminate the need for routing maintenance and guarantee a reliable contact for solid or stranded wires
  3. Contemporary design: the new enclosure features a modern and contemporary design. It is manufactured in the Sentera Plastics factory to guarantee optimal quality
  4. Microprocessor controlled: SDX series are microprocessor controlled to guarantee accurate motor control and to minimise motor noise. Compare SDX series with other fan speed controllers and listen to the difference
  5. Inset or surface mounting: SDX series can be used for inset mounting (IP44) or surface mounting (IP55)

Speed controllers by Sentera

GTE-DM - Temperature based fan speed control


The GTE fan speed controller automatically regulates the speed of single phase voltage controllable motors (230 VAC / 50—60 Hz) according to the measured temperature values.
ITR - Electronic fan speed controller


The electronic speed controllers of the ITR9 series control the speed of single-phase (110—240 VAC / 50—60 Hz) voltage controllable motors by varying the supplied voltage
 The EVS-1-XX-DM electronic speed controllers


The EVS-1-XX-DM electronic speed controllers automatically control the speed of single-phase voltage controllable electric motors (230 VAC / 50—60 Hz).


The DP1S controllers control the rotational speed of single-phase (230 VAC - 50 Hz) voltage controllable motors according to differential pressure.