Alumina Ceramic Post Insulators from Japan
Cylindrical post insulators made from 95% alumina ceramic for use in electrical substations to support busbars and equipment up to 36kV. They offer high puncture resistance and tracking resistance in polluted environments. Falls under 8546.20.00.90 as other ceramic electrical insulators.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide alumina purity percentage (>92%) and IEC 60168 standard compliance certificates
• Label with creepage distance (minimum 31mm/kV) to demonstrate electrical performance
• Avoid misdeclaration as 'silicon carbide' types which may require different surge protection classification