The Helios EHR‑K 6÷40÷20 is an enclosed electric heater designed for integration into ventilation duct systems with duct fans. It features heating elements with a low surface temperature, housed in a robust galvanized steel casing with flanged inlet and outlet for easy installation.
A built-in terminal box on the unit allows for multiple heating stages to be configured to suit specific system requirements. For safety, the heater includes two thermal cut-outs: an automatic reset limit at 90 °C and a manual reset limit at 130 °C, providing reliable protection against overheating during operation.