VEVKV4E400

The VEVKV4E Series Roof-Mounted Fans provide reliable vertical air exhaust for commercial, industrial, and public buildings. Constructed with a robust steel casing and backward-curved impeller, these fans deliver efficient airflow, low noise, and long service life for continuous-duty ventilation systems.

Application

Designed for roof-mounted exhaust ventilation on commercial, office, industrial, and public buildings. Suitable for installation on all roof types as well as vertical ventilation shafts. Ideal for systems requiring dependable extraction directly from ducts or risers.

Features / Benefits

• Steel casing with durable polymer coating for weather resistance
• Vertical discharge design prevents air recirculation
• 4-pole single-phase external rotor motor with thermal overload protection
• Backward-curved impeller for stable airflow and high efficiency
• Dynamically balanced turbine for safe, low-noise operation
• Ball bearings rated for long service life (40,000+ hours)
• Motor protection rating IP44 / IP54 (model dependent)
• Smooth or step control via thyristor or autotransformer controllers
• Multiple fans may share a controller within rated power limits
• Simple roof installation using a flat mounting plate
• External terminal box for safe electrical connection