High-Voltage Porcelain Post Insulator
A cylindrical porcelain insulator designed for supporting high-voltage power lines on utility poles, featuring a glazed surface for weather resistance. Classified under HTS 8546.20.00 as it is made entirely of ceramic material to provide electrical insulation in overhead transmission systems.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made of glass or glass ceramics
Glass insulators fall under 8546.10.00 due to different material properties and manufacturing processes.
If for non-electrical refractory ceramic insulators
Refractory ceramics for high-temperature non-electrical uses are in Chapter 69, not electrical insulators.
If assembled into complete insulating fittings
Insulating fittings of ceramics combining multiple components classify under 8547 as assemblies.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Verify ceramic composition exceeds 50% by weight to confirm classification under 8546.20.00; provide material test certificates
• Ensure insulators meet ANSI C29 standards for voltage rating; include dielectric strength test reports in documentation
Related Products under HTS 8546.20.00
Steatite Ceramic Bushing Insulator
A steatite ceramic bushing used in switchgear to insulate conductors passing through enclosures, with threaded metal ends for mounting. HTS 8546.20.00 applies as it is a ceramic electrical insulator for medium-voltage applications.
Zirconia Ceramic Stand-Off Insulator
A high-strength zirconia ceramic stand-off insulator for mounting busbars in electrical panels, resistant to thermal shock. It qualifies under HTS 8546.20.00 as a ceramic electrical insulator for industrial power distribution.
Silicon Carbide Surge Arrester Insulator
Porcelain housing for silicon carbide surge arresters protecting transformers from lightning, with high puncture resistance. Falls under HTS 8546.20.00 as the ceramic electrical insulator body.
Steatite Ceramic Terminal Block Insulator
Low-voltage steatite ceramic base for terminal blocks in control panels, isolating screw terminals. Classified HTS 8546.20.00 for ceramic electrical insulation preventing short circuits.
Alumina Ceramic Feedthrough Insulator
Hermetically sealed 99.5% alumina ceramic feedthrough for high-vacuum systems, passing conductors while maintaining insulation. HTS 8546.20.00 for this ceramic electrical insulator in RF/microwave applications.
Porcelain Pin-Type Insulator
Traditional porcelain pin insulator for distribution poles (11-33kV), screwed onto wooden crossarms. Ceramic construction qualifies under HTS 8546.20.00 for primary electrical insulation.