400 V motor 11 A | fan speed control | day-night regime

This fan speed controller is designed for controlling 3-phase 400 V motors. Its maximum combined current of 11 A. The calendar function allows configuring two optimal motor speeds, and the timer with a day-week configuration enables automatic switching between these speeds based on predefined schedules. To ensure motor safety, the controller includes a TK monitoring function that monitors motor temperature. If overheating is detected, the controller will deactivate the motor to prevent damage. In the event of a power failure, the controller is equipped with an automatic restart feature., i.e. once the power is restored, the motor will automatically restart without the need for manual intervention. The AC fan speed control is achieved by reducing the motor voltage using autotransformer technology. This technology generates a motor voltage with a perfect sinusoidal waveform, ensuring smooth and quiet motor operation. The enclosure of the controller is suitable for surface mounting indoors and has an IP54 rating, providing protection against dust and offering resistance to water splashes. The supply voltage for the controller is 400 VAC.