400 V motor 1,5 A | day-night fan speed control | TK monitoring

This is a two-speed controller designed for 400V motors with a combined maximum current of 1.5A. It features two distinct 5-step switches, allowing you to select between two ideal fan speeds. You can switch between these two speeds using a dry contact input while the motor is running. The controller has a thermal contact (TK) monitoring feature that automatically shuts off the motor in case of overheating. When the temperature returns to a safe level, the motor will restart on its own. In the event of a power outage, the controller ensures the motor resumes operation automatically once power is restored. Fan speed is controlled by reducing the motor voltage with autotransformers. This method produces a perfect sinusoidal output voltage, which is essential for quiet motor operation. This controller includes alarm and unregulated outputs that you can use to operate external devices. These outputs can trigger alerts or confirm normal operation. The unit's enclosure is designed for surface mounting and provides IP54 protection against dirt, dust, and moisture, making it suitable for various environments.