Helios Ventilatoren 5521 GBD 560/4/4 Gigabox incl. form piece and flex sleeve 3-phase 400 V/50 Hz content_copy

Cubic ventilation box with low-loss pipe connection nozzles on the pressure and suction side including flexible sleeves to prevent structure-borne noise and variably usable housing panels for optimal adaptation to structural conditions. Easy positioning thanks to standard crane hooks. Self-supporting housing frame construction made of aluminum hollow profiles. Double-walled, 20 mm thick side panels made of galvanized sheet steel, sound and heat insulated by lining with non-flammable mineral wool. The housing panels can be replaced as required with accessories such as weather protection grilles and condensate trays. Additional accessories, wall bracket and weather protection roof can be mounted inside and outside for any installation. High-performance radial impeller with backwards curved aluminum blades, directly driven. Vibration-free operation due to dynamic balancing together with the motor in accordance with quality level 6.3 according to DIN ISO 1940 T.1. Driven by three-phase external rotor motor, two-speed via star/delta connection, closed, maintenance-free design, speed can be controlled by voltage reduction or with Helios frequency converter with all-pole sine filter, built-in thermal contacts on terminal block, sealed, low-noise ball bearings with long-term lubrication. Mains connection on the terminal box integrated in the device (IP54).