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Ceramic High-Voltage Coupling Insulator

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.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China2.7%+37.5%40.2%
🇲🇽Mexico2.7%+10.0%12.7%
🇨🇦Canada2.7%+10.0%12.7%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8546.20.00Higher: 40.5% vs 40.2%

If for semiconductor manufacturing

Couplings specifically for semiconductor equipment fall under electrical machines of 8546.

6909.12.00Higher: 41.5% vs 40.2%

If imported as ceramic articles without electrical function

Plain ceramic insulators without coupling terminals are classified in Chapter 69.

8535.21.00Same rate: 40.2%

If incorporating automatic circuit breakers

Couplings with integrated switching mechanisms become automatic circuit breakers.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• 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

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