Technical Specifications:
• Type: AC axial fan with sickle blades
• Rated Voltage: 3~ 400 V AC
• Frequency: 50 Hz
• Power: ~0.84 kW
• Current: ~1.45 A
• Speed: ~1340 rpm
• Protection: IP54
• Blade Material: Aluminium
Source: Ziehl‑Abegg official replacement PDF (FN050‑VDA series)