PVC Insulated Flexible Electrical Conduit
Flexible electrical conduit tubing made of galvanized steel lined with PVC insulating material, used to protect wiring in industrial machinery. It falls under HTS 8547.90.00 as electrical conduit tubing of base metal lined with insulating material, distinct from unlined metal conduit or ceramic insulators. The metal core provides structure while the PVC lining ensures electrical insulation.
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 entirely of plastics without base metal core
Pure plastic flexible tubing falls under Chapter 39 as tubes of plastics, lacking the required base metal structure of 8547.
If unlined base metal tube fittings
Plain metal conduit without insulating liner is classified as iron/steel tube fittings under Chapter 73.
If designed primarily for high-voltage line support
Insulators specifically for overhead power lines are covered by heading 8546, not general machine fittings.
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Import Tips & Compliance
• Verify the conduit has a base metal core (e.g
• steel) with continuous insulating liner meeting ASTM standards to qualify under 8547.90.00
• Include material composition certificates showing insulating liner thickness and dielectric strength to avoid reclassification as plain metal tubing
Related Products under HTS 8547.90.00
Galvanized Steel Insulated Conduit Joint Coupling
Couplings for joining insulated electrical conduits, featuring steel body lined with polyethylene insulator for secure, insulated connections in equipment wiring. Classified under HTS 8547.90.00 as joints for electrical conduit tubing of base metal lined with insulating material. The minor metal threads aid assembly while insulation prevents shorts.
Epoxy Insulated Motor Terminal Bushings
Bushings for electric motor terminals made of phenolic resin insulation with minor threaded metal inserts for mounting, preventing electrical arcing in appliances. HTS 8547.90.00 covers these as insulating fittings wholly of insulating material (minor metal for assembly) for electrical machines. They insulate high-current connections safely.
Silicone Rubber Insulated Cable Glands
Cable entry glands with aluminum base metal body lined/compressed with silicone rubber insulation for watertight, insulated wire entry into electrical enclosures. Under HTS 8547.90.00 as insulating fittings for appliances with minor metal for assembly. Provides strain relief and insulation in harsh environments.
Nylon-Lined Steel Electrical Conduit Elbow
90-degree elbow fittings for electrical conduit, steel tube lined with nylon insulator for directional wiring runs in equipment panels. HTS 8547.90.00 applies to such base metal conduit tubing and joints with insulating lining. Ensures bend protection without conductivity.
Ceramic-Filled Polymer Insulating Standoffs
Standoff insulators for mounting electrical components, polymer base with ceramic filler and minor brass threaded inserts, used in high-voltage appliances. Classified HTS 8547.90.00 for insulating fittings of electrical equipment with assembly metal. Provides creepage distance and support.
Brass Insulated Conduit Compression Connector
Compression-type connectors for liquid-tight insulated conduits, brass body with Santoprene thermoplastic lining for secure, insulated wire protection. HTS 8547.90.00 for base metal conduit joints lined with insulators. Common in washdown equipment.