8544.49.30.40 - For a voltage exceeding 600 V

This classification pertains to insulated electrical conductors, specifically wires and cables, that are constructed of copper and designed for voltages exceeding 600 volts. This includes a broad range of copper conductors where the insulation is integral to their function in transmitting electrical power or signals. Examples within this category could include high-voltage power cables, specialized industrial wiring, or conductors used in high-energy equipment where robust insulation is paramount for safe operation.

The distinction for this subcategory, 8544.49.30.40, lies in its specific voltage application. It is differentiated from other "Other" electric conductors for a voltage not exceeding 1,000 V by its designation for higher voltages. The sibling category, 8544.49.30.80 ("Other"), at this same level, would encompass any insulated copper conductors not specifically classified elsewhere within the 8544.49.30 grouping, potentially including those with different insulation types, constructions, or specific end-uses not covered by the voltage exceeding 600V criteria.

As this is a leaf node within the HTS, there are no further subcategories. Therefore, classification into this specific HTS code relies on meeting all preceding criteria: being an insulated electrical conductor, made of copper, not a specialized cable like coaxial, and specifically intended for use with a voltage exceeding 600 volts. The absence of further subdivisions means that the precise nature of the insulation and the specific end-use are less critical than the material (copper) and the voltage rating for determining classification at this terminal level.