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The EF250R5 is a vertical filter fan manufactured by nVent HOFFMAN, designed for forced ventilation within industrial enclosures. It features a square footprint with dimensions of 252 mm in height and 252 mm in width. The unit operates on an AC voltage of 230V. In terms of airflow performance, it delivers a free air movement rate of 156 m³/h. When subjected to system impedance, the unimpeded airflow is rated at 138 m³/h. The device provides environmental protection classified as IP54 and meets IP33 standards.
Verify that the application environment supports 230V AC operation before procurement. Confirm that the required airflow capacity of 156 m³/h (free air) or 138 m³/h (unimpeded) meets the thermal dissipation needs of the target enclosure. Ensure the physical space accommodates the 252 mm x 252 mm form factor and that the mounting method aligns with the specified click-in installation system.
Select this model when vertical mounting is preferred over horizontal configurations. Choose the EF250R5 specifically if the operational voltage is 230V AC. Consider this unit where IP54 ingress protection is mandatory for the ventilation component. Evaluate the trade-off between free air flow and unimpeded flow based on the resistance of the enclosure's internal components and filters.
The EF250R5 belongs to the nVent HOFFMAN EF Filter Fan series. This series focuses on providing filtered ventilation solutions that maintain internal enclosure cleanliness while managing heat. The product is categorized under industrial ventilation components rather than standard mechanical enclosures, serving as a critical accessory for maintaining safe operating temperatures in sealed electrical systems.
No public confirmed substitute part numbers are available in the provided documentation.

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