Chapter 8544 — Customs Tariff Headings

8544.20.00Co-axial cable and other co-axial electric conductors

8544.30.00Ignition wiring sets and other wiring sets of a kind used in vehicles, aircraft or ships

8544.4Other electric conductors, for a voltage not exceeding 1,000 V:

8544.60.00Other electric conductors, for a voltage exceeding 1,000 V

8544.70.00Optical fibre cables

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Products classified under Tariff item 85.44

Class 200 Enameled Copper Round Wire 1.0mm

Class 200 enameled round copper wire, 1.0mm diameter, insulated with a high-temperature polyester-imide enamel. Designed for winding applications in inverter motors and high-efficiency transformers, this wire is a classic example of insulated copper winding wire of heading 85.44.

Enameled 34 AWG Copper Magnet Wire

Enameled 34 AWG copper magnet wire, 0.16mm diameter, insulated with polyurethane enamel for high-temperature applications. This ultra-fine copper wire is used in precision winding applications and is classified as enameled copper wire.

Enameled Copper Magnet Winding Wire 0.5mm

Enameled copper magnet winding wire, 0.5mm diameter, with an enamel coating designed for electric motors and transformers. This insulated copper wire is specifically manufactured for electromagnetic winding applications, falling squarely within the scope of tariff item 8544.11.00.

Formvar Insulated Copper Winding Wire 0.3mm

Formvar insulated copper winding wire, 0.3mm diameter, used in precision instrument transformers and gauges. The Formvar (polyvinyl formal) coating provides oil resistance and excellent adhesion, making it suitable for specialized winding applications. This is an insulated copper wire of heading 85.44.

High-Temperature 35 AWG Enameled Copper Coil Wire

High-temperature 35 AWG enameled copper coil wire, 0.17mm diameter, with Class 155°C polyester-imide enamel insulation. This copper wire is designed for demanding thermal environments and is used in coil windings, falling under the provision for enameled copper wire.

High-Thermal Copper Litz Winding Wire

High-thermal copper Litz winding wire, consisting of multiple individually insulated strands, designed to reduce skin effect in high-frequency inductors. The copper strands are enamel-insulated and bundled together, making this a specialized insulated copper wire for winding applications.

Micro-Motor 34 AWG Enameled Copper Winding Wire

Micro-motor 34 AWG enameled copper winding wire, 0.16mm diameter, with a modified enamel for vibration-resistant micro-motor stators. This fine copper wire is specifically designed for winding applications in precision electrical equipment.

Polyester-Imide Copper Enamel Wire 0.8mm

Polyester-imide copper enamel wire, 0.8mm diameter, with a robust chemical-resistant insulation for harsh environment motor windings. This insulated copper wire is designed for demanding applications and is classified under the provision for enameled copper wire.

Polyurethane Insulated 36 AWG Copper Winding Wire

Polyurethane insulated 36 AWG copper winding wire, 0.127mm diameter, with a solderable coating for electronics manufacturing. This fine copper wire is used in fine coil windings and is classified as enameled copper wire.

Polyurethane Insulated Copper Winding Wire AWG 24

Polyurethane insulated copper winding wire, AWG 24, for fine wire applications in relays and small transformers. The polyurethane insulation is solderable and provides good electrical properties, making this an insulated copper wire suitable for winding coils.

Precision 38 AWG Triple-Insulated Copper Wire

Precision 38 AWG triple-insulated copper wire, 0.101mm diameter, with a triple-layer insulation for transformer bobbinless windings. This ultra-fine copper wire is insulated for high-voltage applications and is classified as enameled copper wire.

Sensor Coil 39 AWG Copper Enamel Wire

Sensor coil 39 AWG copper enamel wire, 0.09mm diameter, insulated with enamel for precision position sensors and LVDT coils. This ultra-micro copper wire is used in instrumentation applications and is classified as enameled copper wire.

Solderable 37 AWG Copper Magnet Wire Spool

Solderable 37 AWG copper magnet wire spool, 0.112mm diameter, with solderable polyurethane-nylon copper winding wire on 3-inch spools. This ultra-fine wire is designed for high-density voice coils and micro-speaker production, falling under the provision for enameled copper wire.

Solderable Copper Magnet Wire AWG 18

Solderable copper magnet wire, AWG 18, insulated with polyurethane for automotive relays and solenoids. This insulated copper wire is designed for electromagnetic coil winding and is a standard product in the category of enameled copper wire.

Triple Insulated Copper Winding Wire AWG 30

Triple insulated copper winding wire, AWG 30, with three layers of insulation for compact transformers in power supplies. This insulated copper wire provides high safety margins and is used in flyback transformers, falling under the provision for enameled copper wire.

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.

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.

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.

Self-Bonding Polyamide-Imide Magnet Wire 0.2mm

Self-bonding polyamide-imide magnet wire, 0.2mm, is an ultra-fine wire with adhesive properties for audio coils and precision instruments. The self-bonding feature allows coils to hold shape without additional adhesives. It is classified under 8544.19.00 as 'other' insulated winding wire due to its specialized properties.

Solderable Polyester Magnet Wire AWG 18

Solderable polyester magnet wire, AWG 18, is a copper conductor with polyester insulation designed for direct soldering without stripping, used in relays and solenoids. The solderable property is a specialized modification. It is classified under 8544.19.00 as 'other' insulated winding wire.

Triple Insulated Litz Wire for High-Frequency Transformers

Triple insulated Litz wire for high-frequency transformers consists of stranded conductors with triple-layer insulation to reduce skin effect losses in switch-mode power supplies. The multi-layer insulation and Litz construction are specialized. It is classified under 8544.19.00 as 'other' insulated winding wire.

50 Ohm RG-58 Coaxial Cable

> RG-58/U 50-ohm coaxial cable with a stranded center conductor and PVC jacket, used for amateur radio, CB antennas, and test equipment interconnects. It is a coaxial electric conductor, which falls under tariff item 8544.20.00.

Belden 1694A Ultra-Low Loss Coaxial Cable

> Belden 1694A is a 75-ohm coaxial cable designed for broadcast and HD video transmission, featuring a solid center conductor and gas-injected dielectric for low signal loss. As a co-axial electric conductor, it is classified under tariff item 8544.20.00.

Direct Burial Coaxial Cable for CATV

> Direct burial coaxial cable for CATV networks is designed for underground installation with flooding compound and heavy-duty shielding. It is a co-axial electric conductor, falling under tariff item 8544.20.00.

Fakra Coaxial Cable Automotive Grade

> FAKRA-standard coaxial cable assemblies for automotive GPS, Bluetooth, and telematics feature color-coded connectors and 50/75 ohm impedance matching. These are co-axial electric conductors, classified under tariff item 8544.20.00.

Heliax LDF4-50A Coaxial Cable

> Heliax LDF4-50A is a pressurized 1/2-inch coaxial cable with annular corrugated copper outer conductor, used for cellular base stations and broadcast transmission. It is a co-axial electric conductor, falling under tariff item 8544.20.00.

LMR-400 Low Loss Coaxial Cable

> LMR-400 low loss coaxial cable from Times Microwave is used for wireless infrastructure and antenna feeds, with a stranded center conductor and foam dielectric. It is a co-axial electric conductor, classified under tariff item 8544.20.00.

Mini Coaxial Cable 75 Ohm for Automotive

> Miniature 75-ohm coaxial cable for automotive rear-view cameras and infotainment video feeds features a fine-gauge center conductor and compact shielding. As a co-axial electric conductor, it falls under tariff item 8544.20.00.

RG-59 Coaxial Cable for CCTV

> RG-59 coaxial cable is a 75-ohm conductor used in CCTV and legacy video surveillance systems, with a solid copper center conductor and double shielding. It is a co-axial electric conductor, classified under tariff item 8544.20.00.

RG-6 Quad Shield Coaxial Cable

> RG-6 quad shield coaxial cable is used for cable TV, satellite TV, and broadband internet, with a central copper conductor and multiple shielding layers. It is a co-axial electric conductor, falling under tariff item 8544.20.00.

Semi-Rigid Coaxial Cable 0.141 Inch

> 0.141-inch semi-rigid coaxial cable with a solid copper outer conductor and PTFE dielectric is used in microwave assemblies and radar systems. It is a co-axial electric conductor, classified under tariff item 8544.20.00.

Triaxial RG-400 Coaxial Cable

> RG-400 triaxial cable provides double shielding for EMI-sensitive applications like video production and test measurement, with PTFE insulation and silver-plated conductors. It is a co-axial electric conductor, falling under tariff item 8544.20.00.

Aircraft Avionics Wiring Harness Bundle

Aircraft avionics wiring harness bundle for general aviation aircraft, connecting avionics panels, sensors, and power distribution with MIL-SPEC connectors. Meets FAA flammability and EMI shielding requirements, making it suitable for use in aircraft.

Automotive Ignition Wiring Set for Gasoline Engines

Automotive ignition wiring set for gasoline engines, consisting of high-voltage insulated cables connecting the distributor, spark plugs, and ignition coil in passenger cars. Specifically designed for automotive use to transmit ignition signals.

Commercial Jet Fuel Pump Wiring Set

Armored wiring set for Boeing 737 fuel pump actuators, with aramid shielding and QPL-qualified connectors per AS50881 standard. Critical flight safety component for aircraft fuel systems.

Diesel Locomotive Wiring Harness

Heavy-duty wiring harness for EMD locomotive control circuits, connecting engine ECM, throttle, and braking systems with Amphenol rugged connectors. Meets AAR standards for rail vehicles, making it a wiring set for vehicles.

General Aviation Spark Plug Leads Set

Radial engine ignition leads for Piper Cub aircraft, with high-altitude insulation and shielded connectors to prevent EMI interference. Certified for certified aircraft engines, making it an ignition wiring set for aircraft.

Heavy Truck Engine Wiring Set

Robust ignition and sensor wiring set for Class 8 semi-trucks, with high-temperature insulation for diesel Cummins engines connecting ECM, injectors, and glow plugs. Includes Deutsch connectors for vibration resistance.

Marine Engine Wiring Harness for Boat Ignition

Waterproof wiring harness assembly for outboard boat motors, linking the ignition switch, coils, and spark plugs with corrosion-resistant connectors. Designed for harsh marine environments with tinned copper conductors, making it a wiring set for ships.

Military APC Wiring Loom

MIL-STD-810 qualified wiring loom for armored personnel carriers, multi-function harness for engine, weapons station, and comms with circular mil-spec connectors. Ruggedized for combat vehicles, making it a wiring set for vehicles.

Motorcycle Spark Plug Wire Set

High-performance ignition wire set for Harley-Davidson motorcycles, featuring silicone insulation and low-resistance copper core for 8mm wires connecting coils to plugs. Designed for high-RPM sportbike use, making it a wiring set for vehicles.

Offshore Supply Vessel Harness

Explosion-proof wiring harness for PSV engine control rooms, intrinsically safe circuits for hazardous zones with Harting connectors. IECEx certified, making it a wiring set for ships.

Passenger Car ECU Wiring Loom

Complete engine control unit wiring loom for Toyota Camry hybrids, multi-pin connectors to sensors, throttle body, and transmission. EMI shielded with heat-resistant tubing, making it a wiring set for vehicles.

Racing Car Ignition Harness

Lightweight ignition wiring harness for Formula Drift cars, ceramic core wires with minimal resistance for MSD ignition boxes and coil-on-plug systems. Track-proven durability, making it a wiring set for vehicles.

Ship Navigation Wiring Harness

Multi-conductor wiring harness for commercial vessel bridge electronics, linking radar, GPS, and autopilot systems with waterproof bulkhead connectors. Flame-retardant and oil-resistant per SOLAS standards, making it a wiring set for ships.

SUV Trailer Wiring Harness Adapter

7-pin to 4-pin trailer wiring adapter harness for Ford Explorer SUVs, factory-style plug for brake lights, turn signals, and power. Weatherproof molded connectors, making it a wiring set for vehicles.

Yacht Electrical Distribution Harness

Custom wiring harness for superyacht DC distribution panel, linking batteries, inverters, and lighting circuits with tinned marine connectors. Meets Lloyd's Register standards, making it a wiring set for ships.

6P4C RJ11 Handset Cord 12ft Coiled

A coiled telephone handset cord with 6-position 4-conductor RJ11 modular plugs on both ends, designed to connect a telephone handset to its base unit. It is an insulated electric conductor rated for low voltage (under 1,000 V) and is fitted with connectors, making it classifiable under tariff item 8544.42.00.

Cat5e Ethernet Patch Cable with RJ45 Connectors

A Cat5e Ethernet patch cable with twisted pair copper conductors and RJ45 connectors on both ends, supporting data transmission up to 1 Gbps. It is an insulated electric conductor rated for voltages not exceeding 1,000 V and is fitted with connectors, falling under tariff item 8544.42.00.

Cat6a Shielded STP Ethernet Cable with RJ45

A shielded twisted pair Category 6A Ethernet cable with foil shielding and RJ45 connectors, rated for 10GBASE-T transmission up to 100 meters. As an insulated electric conductor under 1,000 V fitted with connectors, it is classifiable under tariff item 8544.42.00.

Cat6 RJ45 Network Cable 10ft Flat

A flat profile Category 6 Ethernet cable with RJ45 connectors, supporting up to 10 Gbps data rates over short distances. It is an insulated electric conductor rated under 1,000 V and fitted with connectors, placing it under tariff item 8544.42.00.

Cat7 RJ45 Ethernet Cable with Strain Relief Boots

A Category 7 screened cable with RJ45 connectors and strain relief boots, supporting 10 Gbps up to 100 meters with 600 MHz bandwidth. It is an insulated electric conductor under 1,000 V fitted with connectors, classifiable under tariff item 8544.42.00.

DSL Filter Cable RJ11 to RJ11 6ft

A telephone cable with an integrated DSL filter and RJ11 connectors, designed to separate voice and data signals on the same line. It is an insulated electric conductor under 1,000 V fitted with connectors, falling under tariff item 8544.42.00, provided the filter is passive and the conductors are the primary component.

Industrial RJ45 Cat6A EtherNet/IP Cable

A ruggedized Category 6A Ethernet cable with M12/RJ45 hybrid connectors for industrial EtherNet/IP networks, rated IP67. It is an insulated electric conductor under 1,000 V fitted with connectors, classifiable under tariff item 8544.42.00 if the RJ45 end qualifies as a connector.

Outdoor RJ45 Cat5e Direct Burial Ethernet Cable

A UV-resistant, waterproof Cat5e cable with RJ45 connectors for outdoor direct burial network installations. It is an insulated electric conductor under 1,000 V fitted with connectors, placing it under tariff item 8544.42.00.