The S4D400-AP12-77 from EBM-Papst is a robust axial fan for three-phase AC, designed for demanding ventilation applications. With an S-series fan impeller featuring sickle-shaped blades and a compact 400 mm steel housing, it delivers up to 4,000 m³/h at free air flow. The fan is ideal for air handling units, heat recovery, and industrial ventilation where high capacity and operational reliability are important.
The M4D074-EI motor is a three-phase AC motor approved according to UL1004-1 and CSA C22.2 No. 100, making the S4D400-AP12-77 a reliable choice for international installations as well.
- Airflow: up to 4,000 m³/h
- Voltage: 400 V AC (50 Hz) / 460 V AC (60 Hz)
- Speed: 1,450 / 1,695 rpm
- Power: 135 W, rated current 0.44 A
- IP44 protection class with ball bearings for long lifespan
- Sound pressure level: 65 dB(A)
- Housing and fan blades in black-coated steel
- Protective grille in steel with black plastic coating included
At Reserv, EBM-Papst products are stocked by our wholesaler, ensuring quick delivery of original parts. You can rest assured that you will receive the correct component — every time. See the datasheet on the product page for complete technical information.
Technical specifications
Datasheet (PDF) - download| Product attribute | Value |
|---|---|
| Airflow at 0 Pa | 4,000 m³/h |
| Speed | 1450/1695 rpm |
| Power | 135W |
| Frequency | 50/60 Hz |
| Voltage | 400V AC VAC |
| Motor frame | The fan is supplied with a steel protective grille with black plastic coating (RAL 9005), adapted for a short nozzle. Installation can be done with the shaft horizontally or with the rotor downwards; installation with the rotor upwards is possible upon request. Condensate drain holes are located on the rotor side. The total weight of the fan is 5.1 kg and the size is 400 mm. |
| Casing | steel, round, black-lacquered |
| Impeller | The fan impeller belongs to the S-series with sickle-shaped blades and is single-inlet. It consists of 5 black-lacquered sheet steel blades. The rotor is surface-treated with black lacquer and the airflow direction is 'V'. At free air flow and 50 Hz, the fan delivers up to 4000 m³/h. |
| Bearing type | ball bearing |
| IP class | IP44 |
| Motor code | M4D074-EI |
| Rotation direction | counter-clockwise, viewed from the rotor side |
| Motor type | The motor is type M4D074-EI, a three-phase AC motor designed for 400 V (50 Hz) and 460 V (60 Hz) in a star connection. At 50 Hz, the speed is 1450 rpm and the power consumption is 135 W with a rated current of 0.44 A. The insulation class is F and the operating mode is S1. The motor has ball bearings and is approved according to UL1004-1 and CSA C22.2 No. 100. |
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