Loading...
SITCSection 7
U.S. imports of insulated electric winding wire (SITC 77311) totaled $74.4M in April 2026, traded with 50 countries.
Importers of Insulated Electric Winding Wire paid $5.1M in duties in April 2026 — an effective duty rate of 17% on $30.4M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataEnameled, varnished, or otherwise insulated winding wire is a foundational input for motors, transformers, generators, and inductors across virtually every electromechanical industry. The insulation type, conductor material (most commonly copper or aluminum), and wire gauge are the primary specification variables that drive both commercial pricing and technical suitability. Copper winding wire in particular is a globally traded commodity sensitive to LME copper price movements, and importers managing transformer or motor manufacturing supply chains track both metal prices and lead times closely.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Winding wire is specifically designed for use in coils—motors, transformers, and similar electromagnetic devices—and is characterized by a thin, uniform insulating coating (enamel, varnish, or similar) applied to enable tight winding. General-purpose insulated conductors intended for power transmission or wiring installations are classified in separate conductor headings, not here.
At the SITC level, both copper and aluminum winding wires fall within this heading. However, at the HTS 10-digit level used for US entry, the conductor material is a key subdivision criterion. Importers should confirm the specific HTS subheading with their broker, as duty rates and any applicable trade-remedy orders may differ by material.
Supplier Network
Get discovered by U.S. importers searching for HS 77311 — Insulated Electric Winding Wire. Be the first supplier listed.
Monthly import values over time