AOFF118

Overview

The AOFF118 is an outdoor filter fan manufactured by Hoffman Enclosures, Inc. It provides 11.8 CFM airflow at 120 VAC and 60 Hz with a 0.3 A rating. The unit features a NEMA 3R/IP55 enclosure type, constructed from high-impact plastic with a gray synthetic finish. Dimensions are 4.92 x 4.92 inches (127 mm depth), with external mounting depth of 2.56 inches and internal depth of 2.44 inches. It includes a lockable door in the hood and a permanently fixed filter hood.

Feature Summary

• High-impact plastic construction resistant to UV light and weather
• Ball bearing axial fan design for extended service life
• Lockable door integrated into the filter hood

Applications

• Outdoor electrical enclosure cooling
• NEMA 3R protected equipment ventilation
• IP55 rated environmental sealing applications

Procurement Notes

Verify that the required voltage matches 120 VAC and frequency is 60 Hz. Confirm physical dimensions fit the target enclosure cutout, specifically noting the 4.92-inch square footprint and 5-inch total depth. Ensure the NEMA 3R/IP55 rating meets environmental protection requirements. Check for UL and CE approval compliance if applicable to the installation region.

Selection Notes

Select this model when outdoor exposure requires UV-resistant materials and IP55 ingress protection. The 11.8 CFM airflow suits moderate thermal loads. Consider the ball bearing lifespan of 50,000 hours at 77°F for maintenance planning. Verify that the plastic impeller and aluminum body meet material compatibility needs.

Part Context

This component belongs to the AOFF Series of outdoor filter fans designed for rack thermal management. It serves as an alternative to standard indoor fans by providing enhanced weatherproofing. The product integrates filtration and exhaust functions into a single compact unit suitable for harsh environments.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.