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8546.20.00.60/Boron Nitride Ceramic High-Voltage Spacer/Japan

Boron Nitride Ceramic High-Voltage Spacer from Japan

BN composite ceramic spacer insulator for vacuum interrupters in high-voltage switchgear, low-frequency applications with superior arc resistance. Used in 72.5 kV systems. Under 8546.20.00.60 as other ceramics.

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%
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Import Tips

• Verify thermal conductivity specs; comply with vacuum sealing standards; prevent classification as circuit breaker parts under 8538