

FB050-VDQ.4I.V4P 101731 is a 3~400 VAC axial fan for chillers, cold-chain equipment, industrial refrigeration. Its main supplied feature is a dual-speed motor configuration identified for this model. It also lists a 4-blade impeller identified for this model. Review maintenance access for cooling validation.
| Rated Voltage(V) | 3~400 |
|---|---|
| Size(mm) | 500 |
| Input Power(W) | 650/440 |
The FB050-VDQ.4I.V4P 101731 serves chillers, cold-chain and refrigeration equipment as a ZIEHL-ABEGG AC axial fan. It supports forced-air cooling or fan control where natural convection cannot maintain the required thermal margin.
A 3~400 VAC rating with 650/440 W input helps engineers plan the electrical supply and cooling-energy budget. Steel sheet-metal blades are optimized for a short nozzle, giving the axial fan a robust airflow path for refrigeration and HVAC equipment. Adjustable blade geometry and speed-control capability support flexible duty-point matching.
The full FB050-VDQ.4I.V4P 101731 suffix should remain on the approved bill of materials. Checking installed airflow, supply compatibility and service access supports dependable operation and controlled purchasing.
Chillers and heat-pump systems use FB050-VDQ.4I.V4P 101731 where the AC axial fan supports heat rejection during changing refrigeration demand. This helps manufacturers connect the specified airflow function with equipment reliability and maintainable installation.
The selection can be qualified against the finished system resistance and the expected duty cycle. For cold-chain, refrigerated display and storage equipment, the FB050-VDQ.4I.V4P 101731 AC axial fan supports continuous air movement needed for dependable refrigerated operation.
In industrial refrigeration and compressor equipment, ZIEHL-ABEGG FB050-VDQ.4I.V4P 101731 removes compressor and process heat from industrial refrigeration assemblies. A controlled air path is needed to carry heat from active parts toward the intended rejection surface.
Check supply voltage, controller signals, blocked airflow, contamination, abnormal noise, rotation, and the equipment operating point before replacing the unit.
The matched source highlights a dual-speed motor configuration identified for this model. Compare that point together with the listed electrical and dimensional data.
The supplied row lists 650/440 W input. Compare these values with the real system operating point, not only the free-air rating.
The supplied files do not establish a universal 24/7 duty rating. Validate ambient conditions, duty cycle, protection, and maintenance requirements for continuous use.
Check electrical supply, mounting clearance, fasteners, airflow direction, guards, wiring, and access for service before installation.
Match the complete model code, voltage, dimensions, mounting arrangement, airflow direction, performance point, and control interface to the equipment.

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