Helios Fans EHSD 30

The Helios EHSD 30 is a sophisticated electronic temperature-controlled semiconductor regulator designed for EHR ventilation systems. It is housed in a durable aluminium casing suitable for mounting on walls or within control cabinets. The device can be controlled via external sensors such as the duct sensor TFK or setpoint generator TFR, or through an external control voltage of 0 to 10 V DC.

This regulator features dual-stage heating power management, with a regulated heating section capable of handling up to 17 kW, complemented by a basic power section also rated at 17 kW, ensuring flexible and efficient temperature control. The unit operates on a 400 V three-phase supply with a maximum current of 25 A and includes a 230 V switching relay rated at 2 A and a contactor rated for 400 V three-phase at 20 A. The IP20 rating provides protection against solid objects but not against water ingress.