HTS Heading 8544

Insulated (including enameled or anodized) wire, cable (including coaxial cable) and other insulated electric conductors, whether or not fitted with connectors; optical fiber cables, made up of individually sheathed fibers, whether or not assembled with electric conductors or fitted with connectors

All 19 HTS codes under heading 8544 (insulated), with their duty rates from the 2026 HTS Revision 23. General duty Free to 5.3%.

Every line of heading 8544

  • 8544 Insulated (including enameled or anodized) wire, cable (including coaxial cable) and other insulated electric conductors, whether or not fitted with connectors; optical fiber cables, made up of individually sheathed fibers, whether or not assembled with electric conductors or fitted with connectors.
  • 8544.11.00 Of copper (under: Winding wire): General 3.5%; Special Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 40%.
  • 8544.11.00.20 33 AWG (0.18 mm in diameter) and finer (kg).
  • 8544.11.00.30 22 AWG (0.643 mm in diameter) and finer but larger than 33 AWG (0.18 mm in diameter) (kg).
  • 8544.11.00.50 Other (under: Of copper) (kg).
  • 8544.19.00.00 Other (under: Winding wire) (kg): General 3.9%; Special Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 35%.
  • 8544.20.00.00 Coaxial cable and other coaxial electric conductors (kg): General 5.3%; Special Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 35%.
  • 8544.30.00.00 Ignition wiring sets and other wiring sets of a kind used in vehicles, aircraft or ships (No.): General 5%; Special Free (A*,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 30%.
  • 8544.42 Fitted with connectors (under: Other electric conductors, for a voltage not exceeding 1,000 V).
  • 8544.42.10.00 Fitted with modular telephone connectors (No.): General Free; Special none; Column 2 35%.
  • 8544.42.20.00 Of a kind used for telecommunications (No.): General Free; Special none; Column 2 35%.
  • 8544.42.90 Other (under: Other): General 2.6%; Special Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 35%.
  • 8544.42.90.10 Extension cords as defined in statistical note 7 to this chapter (No.).
  • 8544.42.90.90 Other (under: Other) (No.).
  • 8544.49 Other (under: Other electric conductors, for a voltage not exceeding 1,000 V).
  • 8544.49.10.00 Of a kind used for telecommunications (kg): General Free; Special none; Column 2 40%.
  • 8544.49.20.00 Other (under: For a voltage not exceeding 80 V) (kg): General 3.5%; Special Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 40%.
  • 8544.49.30 Of copper (under: Other): General 5.3%; Special Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 40%.
  • 8544.49.30.40 For a voltage exceeding 600 V (kg).
  • 8544.49.30.80 Other (under: Of copper) (kg).
  • 8544.49.90.00 Other (under: Other) (kg): General 3.9%; Special Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG); Column 2 35%.
  • 8544.60 Other electric conductors, for a voltage exceeding 1,000 V.
  • 8544.60.20.00 Fitted with connectors (under: Other electric conductors, for a voltage exceeding 1,000 V) (No.): General 3.7%; Special Free (A,AU,B,BH,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG); Column 2 35%.
  • 8544.60.40.00 Of copper (under: Other) (kg): General 3.5%; Special Free (A,AU,B,BH,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG); Column 2 40%.
  • 8544.60.60.00 Other (under: Other) (kg): General 3.2%; Special Free (A,AU,B,BH,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG); Column 2 35%.
  • 8544.70.00.00 Optical fiber cables (under: Insulated (including enameled or anodized) wire, cable (including coaxial cable) and other insulated electric conductors, whether or not fitted with connectors; optical fiber cables, made up of individually sheathed fibers, whether or not assembled with electric conductors or fitted with connectors) (Fiber m): General Free; Special none; Column 2 65%.

From MFG Calcs data: Insulated wire and cable

U.S. imports of insulated wire and cable (heading 8544) came to $35.68B in 2025, with $4.38B in calculated duty: an effective duty of 12.3%, every duty included.

Effective duty in Sep 2026: 13.2%, against 16.7% in Sep 2025.

Largest sources in 2025: Mexico $17.74B at 2.6% effective duty; China $3.58B at 53.2% effective duty; Vietnam $2.61B at 17.1% effective duty; Philippines $1.18B at 18.8% effective duty; South Korea $1.01B at 10.8% effective duty.

These are family totals from U.S. import statistics published through USITC DataWeb, not this heading's rate alone; effective duty is calculated duty as a share of customs value, an estimate, not a ruling.

About these rates

The rates are those printed in the 2026 HTS Revision 23, published by the U.S. International Trade Commission. A 10-digit statistical line takes the rates printed on the 8-digit line above it. Chapter 99 duties (Section 232, Section 301, IEEPA) depend on the product, the origin and the date, are charged on top, and are not included. A code here is a strong lead, not a ruling: confirm it with a customs broker or a CBP binding ruling.

Last reviewed 2026-11-12.