Fan motors - Import export

The STR-1-15L22 is a transformer fan speed controller with which you can manually regulate the fan speed of single-phase motors in 5 steps. The unit also has an off-position. It needs a 230 VAC/50-60 Hz supply voltage and has an unregulated output of 230 VAC that can control a damper, an external status indicator, etc. This output is active as soon as the motor is enabled. The sinusoidal shape of the generated motor voltage results in an exceptionally quiet motor operation and extended service life. The special impregnated coating reduces the electrical noise from the built-in autotransformer. This series is available in different amperes. The casing of the controllers up to 7,5 A is made from high quality plastic, while the models above 7,5 A have a metal housing. This transformer doesn't need any configuration. Once installed, it's ready for use.

This controller regulates the fan speed of single-phase motors from 1,5 to 10 A via phase angle control a.k.a. Triac technology. The supply voltage of 230 VAC can be turned off via the illuminated ON/OFF switch on the side of the unit. Via de potentiometer located on the front of the controller you can set the desired fan speed. Minimum speed can be adjusted via an internal trimmer and kickstart/softstart by adding/removing a jumper on the PCB of the controller. This controller is typically used to regulate the speed of AC fans or centrifugal pumps in HVAC systems. The regulator is also available with TK monitoring. This function will deactivate the motor in case of overheating. The code for this type of regulator suitable for 1,5 A is ITRS-15-DT.