The Helios HY 3 is a surface-mounted humidity controller designed for regulating one or more ventilation units based on ambient humidity levels. The device offers continuously adjustable control between 30% and 90% relative humidity, allowing precise regulation for humidification or dehumidification needs.
Housed in a white IP30-rated casing, the HY 3 is ideal for indoor use and features a changeover contact to support both humidifying and dehumidifying applications. It supports a switching capacity of up to 3 A for inductive loads and 5 A for resistive (ohmic) loads. This versatile unit ensures reliable performance in HVAC systems requiring responsive humidity control.