Wento RFC4-031 XLB (SS) 310 mm Stainless Suction Axial Fan – 1,370 RPM, 100W, 2,000 m³/h

Wento RFC4-031 XLB (SS) is a 310 mm class suction axial fan with stainless steel blades (blade diameter 315 mm in the manufacturer's table). It is designed for cold room evaporators, condensing units and ventilation applications in humid/corrosive environments; in saline, acidic and condensing environments where standard galvanized blades corrode, the stainless (SS) blade construction provides a long service life.

Stainless Blades: The Fan for Humid and Corrosive Environments

• 2,000 m³/h airflow — balanced noise/performance at 1,370 rpm.
• Suction (draw-through) direction: Draws air toward the motor side; the correct direction for draw-through mounting on evaporator and condenser coils.
• IP54 protection: Motor protected against dust and water splashing from any direction — safe in cold room condensation.
• Wire guard protected: Ready to mount; the guard feet are screwed directly to the housing.
• Documented efficiency: Static efficiency grade 61.4% (ErP measurement category A).

Technical Specifications and Installation Notes

• Model: Wento RFC4-031 XLB (SS)  |  stainless blades
• Blade Diameter: 315 mm (310 mm class)  |  Air Direction: Suction (draw-through)
• Speed: 1,370 rpm (4-pole)
• Power Supply: 230 V ~ 50 Hz  |  Power: 100 W  |  Current: 0.50 A
• Airflow: 2,000 m³/h
• Protection Class: IP54  |  Mounting: With wire guard
• Efficiency: Static 61.4% (measurement category A)

• 🔧 Verify the air direction before replacement. If you fit a suction fan in place of a blowing fan, coil efficiency drops; check the direction arrow on the old fan's label.
• Blade diameter + speed + direction must all match; if you are looking for a 1,370 rpm suction equivalent for a 310/315 mm opening, this fan is a direct replacement.
• Check the capacitor connection: The run capacitor of single-phase motors is in the terminal box; keep the same capacitor value when replacing.
• Do not scratch the stainless blades: Do not put load on the blade edges during installation; if the balance is disturbed, vibration shortens bearing life.