Alumina Ceramic Spool Insulator from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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