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The nVent HOFFMAN Spectracool G280446G100 is a three-phase outdoor enclosure air conditioner designed for NEMA 3R/4/12 environments. It operates on 460 VAC at 50/60 Hz with an amperage rating of 1.3/1.4 A. The unit provides a nominal cooling capacity of 4900 Btu/hr (1435 W). Constructed from steel with a light gray RAL 7035 finish, it withstands ambient temperatures ranging from -40°F to +131°F. Dimensions are 28.55 in H x 16.97 in W x 10.1 in D.
Verify the specific voltage configuration matches the site power supply, as 460V units differ from standard 115V or 230V models. Confirm the required cooling capacity aligns with the enclosure's internal heat load calculations. Ensure the physical dimensions fit the designated mounting space within the NEMA-rated enclosure. Check for any specific environmental certifications required for the installation location.
Select this model when high-capacity cooling is needed for large sealed enclosures in harsh outdoor conditions. The 460V three-phase input suits industrial facilities with existing three-phase power distribution. Consider the 4900 Btu/hr output relative to the enclosure volume and internal component heat generation. The corrosion-resistant finish is critical for coastal or chemically aggressive environments.
This unit belongs to the Spectracool G28 series, which includes various indoor and outdoor air conditioners. The series utilizes earth-friendly refrigerants such as R407c and R134a. Other models in the line offer different voltages and capacities, but this specific part number is optimized for high-output outdoor applications requiring robust thermal management.
Direct substitutes must match the 460V three-phase requirement and similar BTU output. Verify dimensional compatibility if replacing older Hoffman models. Ensure the replacement unit supports the same NEMA rating for environmental protection.

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