Zirconia Ceramic Insulator
Yttria-stabilized zirconia ceramic insulators for spark plugs and high-frequency applications. Classified under HTS 8546.90.00.00 as advanced ceramic electrical insulators.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If laboratory ceramic crucibles
Zirconia products for lab chemical processing rather than electrical insulation use labware classification.
If other refractory zircon products
Zirconia refractories for glass furnace use are classified under refractory ceramics.
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
• Document yttria stabilizer content; specify thermal conductivity; include Weibull modulus for strength reliability
Related Products under HTS 8546.90.00.00
Porcelain High-Voltage Post Insulator
A porcelain insulator designed for supporting high-voltage power lines on utility poles, preventing electrical conduction between the conductor and ground. It falls under HTS 8546.90.00.00 as an electrical insulator of ceramic material classified as 'other' since it does not fit specific subheadings for composite or glass insulators.
Epoxy Resin Bushings Insulator
Epoxy resin bushings used in transformers to insulate high-voltage conductors passing through the tank wall. Classified under HTS 8546.90.00.00 as an 'other' electrical insulator made from synthetic resin materials.
Steatite Ceramic Stand-Off Insulator
Steatite ceramic stand-off insulators used to mount and separate electrical components on circuit boards or panels. Falls under HTS 8546.90.00.00 as ceramic electrical insulators not covered by other specific subheadings.
PTFE Threaded Rod Insulator
Polytetrafluoroethylene (PTFE) threaded rod insulators for supporting busbars in electrical panels. Classified under HTS 8546.90.00.00 as plastic electrical insulators of any material type.
Alumina Ceramic Pin Insulator
High-purity alumina ceramic pin insulators for low to medium voltage distribution lines. HTS 8546.90.00.00 covers these as other ceramic electrical insulators.
Micaceous Mica Board Insulator
Mica board made from micaceous minerals used for electrical insulation in heating elements and commutators. Classified as other electrical insulators under HTS 8546.90.00.00.