Three-Phase Wound Iron Core for Industrial Transformers from China
A heavy-duty three-phase wound core constructed from grain-oriented electrical steel, pre-wound for direct incorporation into large industrial step-up transformers. It meets HTS 8504.90.96.42 criteria as a specialized wound component essential for transformer manufacturing, supporting high current loads.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Import Tips
• Declare phase configuration, core weight, and B-H curve data to differentiate from single-phase or non-transformer cores during inspection
• Ensure compliance with IEEE transformer standards; non-conforming cores risk seizure as safety hazards
• Use HTS advisory rulings for high-value shipments over 500kg to preempt valuation disputes on material content