Alumina Ceramic Spool Insulator from Mexico
A precision-machined spool-shaped insulator made from 95% alumina ceramic, used in electrical coils and transformers for wire support. It falls under HTS 8546.20.00 because it is a ceramic electrical insulator preventing current leakage in high-voltage applications.
Duty Rate — Mexico → United States
13%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide alumina content certification (>90%) to avoid reclassification as lower-grade ceramics
• Label with exact voltage rating and creepage distance; comply with IEC 60112 standards