Universal service switch, 12A. For all types of single and three-phase motors.
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![LK-12-A[1]](https://brookvent.info/wp-content/uploads/2023/11/LK-12-A1.jpg "LK-12-A[1]")
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![LK25-A-3P[1]](https://brookvent.info/wp-content/uploads/2023/11/LK25-A-3P1.jpg "LK25-A-3P[1]")
Universal service switch, 25A. For all types of single and three-phase motors.
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![LK-25-A[1]](https://brookvent.info/wp-content/uploads/2023/11/LK-25-A1.jpg "LK-25-A[1]")
Universal service switch, 25A. For all types of single and three-phase motors.
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It is used to switch on/off and change the speed of fans which are based on multi-speed motors.
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The BR-2/010 potentiometer has been developed for controlling devices that need an infinitely variable control signal. The supply voltage range is 0-12 VDC, e.g. for EC motors, controlled by a 0-10V signal. The output voltage is infinitely adjustable from 0 to the supply voltage (Us) with a knob. It is equipped with a switch (potential-free contact) for remote switching on/off of external devices. The potentiometer is suitable for both flusch mounted (IP44) and surface mounting (IP54).
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Potentiometer designed to set the desired speed value for fans equipped with electronically commutated EC motors. The potentiometer requires a power source max 10-12V DC / 1mA, which is available from the EC fans. The output is a stepless 0-10 V DC signal. Resistance 10 kΏ.
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![BR-TWIN-PHOTO[1]](https://brookvent.info/wp-content/uploads/2023/11/BR-TWIN-PHOTO1.png "BR-TWIN-PHOTO[1]")
The BR-TWIN 1-010 EC potentiometer is designed for electronically commutated EC motors. It allows for setting two speeds and has a NO input (e.g. for a timer or CO2 sensor). The potentiometer is supplied with a signal up to Uc max = 15V. It has enclosure protection class IP 65.
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CSR-B EC W, CSR-B EC Zero Plus W, CSR-B EC NFC W controller
Controllers of the CSR-B series are constant pressure regulators designed for cooperation with duct and roof fans with EC motors. By continuously controlling the fan speed, they ensure constant pressure in the ventilation ducting. Based on a PI controller, CSR-B controllers have the option to set a constant fan power and programmable upper and lower fan control limits. -
thyristor speed controller BS 1.5
Used in ventilation systems to switch on/off and regulate the speed of single-phase electric motors of voltage-controlled fans.
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thyristor speed controller BS 1.8
Used in ventilation systems to switch on/off and regulate the speed of single-phase electric motors in voltage-controlled fans.