Control switches and potentiometers control EC fans, AC fan speed controllers or damper actuators. They generate an analogue control signal, e.g. 0-10 VDC, 0-20 mA or 0-100 % PWM. Control switches divide the analogue control signal in steps. The potentiometers generate an infinitely variable control signal. We also offer control switches for 3-speed AC fans with single-phase motor.
3-step control switch for single phase motors
These control switches adjust the speed of 3-speed fans. They are available with or without OFF position. They transfer the mains to one of the three terminal blocks. This allows you to adjust the fan speed from minimum to maximum in 3 steps.
3-step control switch for EC motors or damper actuators
These control switches adjust the speed of EC fans in 3 steps. They can also control frequency inverters, fan speed controllers or damper actuators. They are available with or without OFF position. They divide the analogue 0-10 V control signal in three steps. This makes it possible to adjust the fan speed or the damper position from low to high in 3 steps.
A potentiometer generates a 0-10 V control signal for an EC fan. It can also control a frequency inverter, a fan speed controller or a damper actuator. Sentera has a wide range of potentiometers. Some potentiometers can generate other analogue control signals, e.g. 0-20 mA or a modulating PWM signal. Select the supply voltage that you want to use for your potentiometer:
Sentera provides innovative, easy-to-use control solutions for HVAC installations and ventilation systems. How to optimise your comfort, indoor air quality, safety and overall wellbeing? We have the answer!