Helios Duct fan KRD 500/4/80/50 A
€2,363.88
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Centrifugal duct fan with backward-curved impeller blades, for direct installation in rectangular duct systems; fan unit can be swung out.
Housing made of galvanised sheet steel with standardised duct flange profiles on both sides, space-saving design, easy servicing thanks to swing-out motor/impeller unit; from size 450 upwards, the swing-out unit has an additional locking device.
High-performance centrifugal impeller with backward-curved blades made of plastic and galvanised steel. Vibration-free operation through dynamic balancing to quality grade G 6.3 in accordance with DIN ISO 1940 Part 1.
Drive: Three-phase external-rotor motor, built-in thermal contacts routed to terminal board, enclosed design; speed can be controlled via 5-step transformer or electronically (stepless), and control using a Helios frequency inverter with all-pole sine filter is also possible; winding with moisture-protection impregnation, maintenance-free, sealed low-noise ball bearings with long-life lubrication. Mains connection to pre-fitted terminal box (IP54).
Dokumente
| Degree of protection: | IP 54 |
|---|---|
| Height: | 543 mm |
| Width: | 843 mm |
| Material: | Housing made of galvanized sheet steel; Impeller made of Plastic and galvanized Steel |
| Duct dimension: | 800/500 mm |
| Airflow rate: | 8460 m³/h |
| Controllability: | Transformer / Electrically / Frequency converter |
| Current uncontrolled: | 4,7/2,7 A |
| Depth: | 913 mm |
| Installation: | Duct |
| Number of poles: | 4 |
| Permissible medium temperature: | 60 °C |
| Rated power: | 1,21 kW |
| Rated speed: | 1360 |