Class 200 Nomex Paper Covered Copper Winding Wire
Class 200 Nomex paper covered copper winding wire is an insulated winding wire with a paper-based insulation system rated for 200°C, used in large power transformers. Although the conductor is copper, the Nomex paper insulation means it is not covered by the copper-specific subheading 8544.11. It is correctly classified under 8544.19.00 as 'other' insulated winding wire.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the insulation is enamel or varnish rather than paper
Copper wire with enamel insulation is classified under 8544.11; paper insulation places it here.
If the wire is not winding wire but other insulated conductors for voltage exceeding 1000V
High-voltage conductors not used for winding are classified under 8544.60.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Document the insulation type (Nomex paper) and thermal class clearly on shipping documents
• Since the conductor is copper but insulation is paper, be prepared to explain why 8544.11 does not apply
• Check if the wire qualifies for duty-free entry under the Most-Favoured-Nation (MFN) tariff if originating from a WTO member
Related Products under Tariff item 8544.19.00
Class 155 Polyester-Imide Enameled Magnet Wire 1mm
Class 155 polyester-imide enameled magnet wire, 1mm diameter, is an insulated winding wire used in high-temperature motor windings. Its polyester-imide insulation provides thermal endurance up to 155°C, making it suitable for demanding electrical applications. This product falls under tariff item 8544.19.00 as 'other' insulated winding wire, not being of copper or specifically covered elsewhere.
Enameled Copper Magnet Wire 0.5mm
Enameled copper magnet wire, 0.5mm diameter with polyurethane enamel insulation, is used in electric motors and transformers. Despite being copper-based, its polyurethane enamel coating is not the typical varnish or enamel specified for copper wire under 8544.11. This product is classified under 8544.19.00 as 'other' insulated winding wire.
Fiberglass Insulated Rectangular Magnet Wire
Fiberglass insulated rectangular magnet wire features a rectangular copper or aluminum conductor wrapped with fiberglass sleeving and varnish, designed for generator windings. The composite fiberglass construction distinguishes it from standard enameled copper wire. It is classified under 8544.19.00 as 'other' insulated winding wire.
Formvar Insulated Fine Magnet Wire for Medical Devices
Formvar insulated fine magnet wire is a precision winding wire with polyvinyl formal (Formvar) insulation, used in medical imaging coils and precision instruments. The pinhole-free insulation is critical for biomedical applications. This product is classified under 8544.19.00 as 'other' insulated winding wire due to its specialized insulation.
Kapton Tape Wrapped High-Voltage Winding Wire
Kapton tape wrapped high-voltage winding wire uses polyimide tape insulation for power electronics applications requiring high thermal and dielectric performance. The tape-wrapped construction differentiates it from enameled wire. It is classified under 8544.19.00 as 'other' insulated winding wire.
Polyurethane Insulated Aluminum Winding Wire AWG 24
Polyurethane insulated aluminum winding wire, AWG 24, is an aluminum conductor with a polyurethane coating for small transformer and inductor windings. The aluminum conductor and polyurethane insulation place it outside the copper-specific subheading. It is classified under 8544.19.00 as 'other' insulated winding wire.