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The G280446G101 is an outdoor model partial recess mount enclosure air conditioner manufactured by nVent HOFFMAN. It provides thermal management for electrical enclosures with a cooling capacity of 4000 BTU/hr (nominal) and 4900 BTU/hr (maximum). The unit operates on a nominal voltage of 460V at 50/60 Hz, three-phase configuration. Key electrical ratings include an amperage of 1.7/1.9 A or 1.3/1.4 A depending on the source specification. The operating temperature range spans from -40°F to +131°F.
Verify the specific voltage and phase requirements against your facility's power infrastructure before procurement. Confirm the exact amperage rating required for circuit breaker sizing, as sources vary between 1.3/1.4 A and 1.7/1.9 A. Ensure the enclosure has sufficient depth for partial recess mounting. Check for compatibility with existing door cutouts and gasket seals to maintain environmental protection ratings.
Select this unit when a cooling capacity of approximately 4000 BTU/hr is required for outdoor applications. It is suitable for three-phase 460V systems common in industrial settings. Consider the physical dimensions of the partial recess mount to ensure it fits within the designated enclosure space. Evaluate the need for stainless steel versus mild steel construction based on corrosion resistance requirements.
This component belongs to the nVent HOFFMAN G28 series of enclosure coolers. These units are designed to replace traditional heat exchangers or fans in harsh environments where maintaining internal temperature is critical. The G28 series typically offers robust construction to withstand outdoor elements while providing efficient heat dissipation for enclosed machinery.
Public confirmed substitute part numbers: G280446G102.

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