Helios HELI KRD EC 450/70/40 Duct fan EC swivel-out 3-PH 400V 50Hz adjustable

The HELIOS KRD EC 450/70/40 duct fan is a highly advanced radial fan specifically designed for integration into rectangular duct systems. With a robust housing made of galvanized steel sheet and standardized duct flange profiles on both sides, this fan offers a space-saving design while being service-friendly, as the motor-impeller unit can be swung out for easy access. The backward-curved impeller blades made of plastic and galvanized steel ensure high air flow and efficient performance. The fan is equipped with an energy-saving EC external rotor motor that allows for stepless speed control and is distinguished by its high efficiency. Additionally, the integrated electronic temperature monitoring guarantees reliable operation and longevity of the device. The HELIOS KRD EC duct fan is ideal for applications where precise air circulation and energy efficiency are required.

• High-performance radial impeller with backward-curved blades for optimal air performance
• Energy-saving, speed-controllable EC external rotor motor with high efficiency
• Integrated electronic temperature monitoring for motor and electronics
• Stepless speed control via potentiometer or universal control system EUR-EC
• Vibration-free operation through dynamic balancing and aerodynamically optimized airflow.