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What is an electronic fan speed controller for AC motors?
Motor and fan related questions
How to control AC fan speed in an easy way? Electronic fan speed controllers make it possible to adjust the rotational speed of AC fans. These variable speed drives are very easy to install and to configure.

The Sentera product range features variable speed drives for single or three phase AC voltage controllable motors and fans in HVAC applications. Electronic variable fan speed controllers allow you to regulate the speed of AC fans manually or demand based. Phase angle control (TRIAC technology) is used to adjust the motor voltage and to control the fan speed. Thanks to this technology, these speed controllers are completely silent. Depending on the motor type, some additional motor noise at low speed might occur. Fan speed controllers offer you advantages in terms of comfort - optimisation of the supply of fresh air in your building, in terms of health - improvement of the indoor air quality as well as in environmental terms - thanks to the optimised airflow, your ventilation system will be more energy efficient.
Recent news
Date 09/07/2020
Brand new SDX fan speed controllers
Brand new SDX fan speed controllers 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. >>>
Date 22/06/2020
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How to measure indoor air quality? Sentera air quality sensors measure TVOC and equivalent CO2 level >>>
Date 15/06/2020
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