8504.90.96.38/High-Efficiency UI Stacked Transformer Core/Mexico

High-Efficiency UI Stacked Transformer Core from Mexico

UI-shaped silicon steel laminations stacked and hinged for easy assembly in high-efficiency transformers used in renewable energy inverters. These cores meet DOE efficiency standards when fully assembled. HTS 8504.90.96.38 covers such pre-stacked configurations.

Duty Rate — Mexico → United States

10%

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
Calculate with your customs valueVerify classification with AI

Import Tips

• Efficiency class documentation (e.g

• NEMA standards) supports high-efficiency claims during customs review

• Hinge mechanism details must show temporary assembly only—no permanent fixtures for parts status

• Mark packages with 'For 50/60Hz transformer incorporation only' to prevent misuse classification

High-Efficiency UI Stacked Transformer Core from Mexico — Import Duty Rate | HTS 8504.90.96.38