Exciter Field Winding Assembly from China
Copper winding assembly for the exciter section of brushless AC generators under 8501.64.0110. Provides rotating DC field excitation for main generator rotor. Classified in 8503.00.95.46 as principal part of these specific high-capacity alternators.
Duty Rate — China → United States
38%
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
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
Import Tips
• Provide winding diagrams showing turns/gauges matching exciter voltage/current specs
• Include insulation class certification (typically Class H, 180°C) for MW generator duty
• Document PMG (permanent magnet generator) integration if brushless excitation system