Ceramic High-Voltage Coupling Insulator from Japan
A porcelain coupling device that electrically connects high-voltage busbars while providing insulation for circuits over 1,000V. HTS 8535.90.80.20 applies to such electrical couplings in power distribution substations.
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
• Include creepage distance measurements in technical docs for voltage compliance verification
• Certify material as porcelain or ceramic to distinguish from plastic insulators
• Package individually to avoid damage claims during customs inspection