Transformer Oil Mixture from Mexico
Transformer oil mixture is a highly refined naphthenic or paraffinic hydrocarbon blend (<50% single compound) used for electrical insulation in power transformers. It prevents arcing and cools. HTS 2710.19.45 as electrical-grade petroleum oil mixture.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• ASTM D3487 compliance cert required for electrical grade verification
• Dielectric strength test results (>30kV) aid customs appraisal
• Distinguish from waste oils via PCB-free certification