HRFW EC 250 A – EC Cased Axial Fan – Helios
EC axial high-performance fan
Cylindrical tube made of galvanized sheet steel, with impeller encircling, flange formed on both sides, hole pattern according to DIN 24155, standard terminal box (protection class IP 54) on the outside of the tube.
Impeller with high-performance characteristics with profiled blades made of plastic, aerodynamically optimized for the application, dynamically balanced.
Energy-saving, speed-controllable EC external rotor motor with protection class IP 44 with maximum efficiency. Maintenance and radio interference free, excellent electromagnetic compatibility (EMC), ball bearing. Integrated electronic temperature monitoring for EC motor and electronics. Steplessly controllable via speed potentiometer. Control via three-stage switch or continuously via universal control system or electronic differential pressure / temperature controller.