HVAC Heat Pump HFC-125 Blend R-463C
Next-generation heat pump refrigerant with 43% HFC-125, CO2, and HFOs for residential HVAC systems. HTS 3827.63.00.00 classification for pentafluoroethane dominant HFC mixtures. A2L classification enables higher efficiency split systems.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If HFC content less than 40% for named compounds but still HFC-based
Mixtures not meeting specific ≥40% thresholds fall to residual 'other HFCs' category.
If component HFOs (hydrofluoroolefins) imported separately
Unsaturated halogenated hydrocarbons have separate Chapter 29 provisions.
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Import Tips & Compliance
• Include AHRI Standard 700 purity certification and leak detection compatibility data
• Specify brazing material compatibility for copper/aluminum heat exchangers
• Register blend composition with ASHRAE nomenclature committee if new designation
Related Products under HTS 3827.63.00.00
HFC-125 Refrigerant Blend R-507
Azeotropic refrigerant mixture containing 50% pentafluoroethane (HFC-125) and 50% 1,1,1-trifluoroethane (HFC-134a) by mass, used in commercial refrigeration systems. Classified under HTS 3827.63.00.00 because it contains over 40% HFC-125 and no CFCs or HCFCs. Essential for low-temperature applications like frozen food storage.
HFC-507A Medium Temperature Refrigerant
Non-ozone depleting refrigerant blend of 50% HFC-125 and 50% HFC-134a designed for supermarket display cases and transport refrigeration. Meets HTS 3827.63.00.00 criteria with HFC-125 content exceeding 40% by mass. Provides efficient cooling without global warming compounds from older CFC systems.
HFC-125 Dominant Fire Suppressant FK-5-1-12
Clean agent fire extinguishing mixture containing over 40% pentafluoroethane (HFC-125) with fluoroketones for total flooding systems in data centers. Classified in 3827.63.00.00 due to high HFC-125 content and absence of banned ozone depleters. Replaces toxic Halon 1301 in critical fire protection applications.
R-404A Replacement HFC Blend HCR-404A
Low-GWP retrofit refrigerant containing 45% HFC-125 blended with HFOs and HFC-32 for replacing R-404A in existing cold storage systems. Qualifies for HTS 3827.63.00.00 due to dominant pentafluoroethane content. Designed for drop-in compatibility with minimal system modifications.
Industrial Chiller HFC-125 Coolant Mixture
High-performance coolant blend with 42% HFC-125 and HFC-227ea for centrifugal chillers in pharmaceutical manufacturing. Meets 3827.63.00.00 classification for HFC mixtures with dominant pentafluoroethane content. Provides superior heat transfer efficiency in water-cooled systems.
HFC-125 Transport Refrigeration Blend R-452A
R-404A replacement blend containing 41% HFC-125, HFC-32, and HFO-1234yf for refrigerated trucks and containers. Classified under HTS 3827.63.00.00 for HFC-dominant mixtures without ozone depleting substances. A2L safety classification enables use in marine shipping containers.