ebm-papst W4D400-CP12-31 – AC Axial Fan S Series Ø 400 mm with Wall Ring, 3~ 230/400 V
The ebm-papst W4D400-CP12-31 is a 400 mm AC axial fan from the ebm-papst S series, supplied mounted in a wall ring (full round nozzle) for direct installation in walls, panels and equipment. It is driven by a 4-pole, three-phase external rotor motor (M4D074-EI) for 230 V (delta) or 400 V (star) at 50/60 Hz, and moves up to approximately 4,000–4,600 m³/h.
The S series uses sickle-shaped sheet steel blades for quiet, efficient operation. The external rotor design places the motor inside the hub, which saves space and keeps the motor cooled by the air stream. This version has air flow direction “A”; the same fan with air flow direction “V” is the W4D400-CP12-30.
Key Technical Data – ebm-papst W4D400-CP12-31
- Type: AC axial fan, S series, Ø 400 mm, with wall ring (full round nozzle)
- Motor: M4D074-EI, 4-pole, external rotor
- Supply: 3~ 230 V Δ / 400 V Y, 50/60 Hz
- Speed: 1,450 rpm (50 Hz) / 1,690 rpm (60 Hz)
- Power consumption: 135 W (50 Hz) / 185 W (60 Hz)
- Current draw: 0.76 / 0.68 A at 230 V Δ; 0.44 / 0.39 A at 400 V Y (50 / 60 Hz)
- Max. back pressure: 105 Pa (50 Hz) / 120 Pa (60 Hz)
- Air flow: approx. 4,000–4,610 m³/h (50/60 Hz)
- Air flow direction: “A”
- Blades: 5, sheet steel, painted black
- Wall ring: Sheet steel, pre-galvanised and coated in black plastic
- Degree of protection: IP44
- Insulation class: F
- Min. ambient temperature: –25 °C
- Mounting position: Shaft horizontal or rotor on bottom
- Electrical connection: PVC cable 7G 0.5 mm²
- Wall ring size: approx. 528 × 528 mm
- Weight: approx. 7.98 kg
- Approval: CE
Choosing the Right W4D400 Version
- W4D400-CP12-31: wall ring, air flow direction “A” (this item)
- W4D400-CP12-30: wall ring, air flow direction “V”
The air flow direction must match the original installation. Check the label of the fan being replaced, or ask our sales team.
Typical Applications
- Cooling of condensers and heat exchangers in refrigeration and air conditioning
- Wall-mounted ventilation in industrial buildings, workshops and agriculture
- Cooling of transformers, switchgear and machine enclosures
- Replacement fan for OEM equipment using the W4D400 series
Buy ebm-papst W4D400-CP12-31 from Atlantech Drives
- In stock or fast sourcing, shipped worldwide
- 12-month warranty
- Senior commercial advice on fan selection, air flow direction and lead time
- Quick, no-obligation quotes: get a quote today
