The Helios MWS 5 is a reliable five-step speed controller designed for surface-mounted installation, offering efficient control of one or more ventilation fans equipped with thermal contacts. The integrated terminal block ensures secure fan connection and protection.
Featuring selectable output voltages of 0, 80, 100, 130, 170, and 230 volts, the unit includes a rotary selector switch, a built-in tripping device, and a status indicator lamp. In case of fault conditions, reset is performed by turning the switch to the “0” position. Housed in a durable polymer casing rated IP54, the MWS 5 withstands ambient temperatures up to 40 °C, making it suitable for demanding ventilation control applications.