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HTS heading 8504: Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof

Heading 8504 of the US Harmonized Tariff Schedule covers Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof. Below: every rated tariff line in it with its general duty rate, Section 301 China status and exclusions, then a page per line with a free duty calculator.

Official USITC HTS, 2026HTSRev20 · check on hts.usitc.gov

Heading 8504 at a glance

Goods named in this heading (official line texts): Ballasts for discharge lamps or tubes, Having a power handling capacity not exceeding 650 kVA, Having a power handling capacity exceeding 650 kVA but not exceeding 10,000 kVA, Having a power handling capacity exceeding 10,000 kVA, Unrated, Having a power handling capacity less than 1 kVA, Having a power handling capacity of 1 kVA, Having a power handling capacity exceeding 1 kVA but not exceeding .

Subheadings (6-digit)

All tariff lines in heading 8504

LineDescriptionGeneralSection 301 (China)Exclusions
8504.10.00Ballasts for discharge lamps or tubes3%List 4A +7.5%
8504.21.00Having a power handling capacity not exceeding 650 kVAFreeList 1 +25%
8504.22.00Having a power handling capacity exceeding 650 kVA but not exceeding 10,000 kVAFreeList 1 +25%
8504.23.00Having a power handling capacity exceeding 10,000 kVA1.6%List 1 +25%
8504.31.20Having a power handling capacity not exceeding 1 kVA: UnratedFreeList 3 +25%
8504.31.40Having a power handling capacity less than 1 kVA6.6%List 3 +25%
8504.31.60Having a power handling capacity of 1 kVA1.6%List 3 +25%
8504.32.00Having a power handling capacity exceeding 1 kVA but not exceeding 16 kVA2.4%List 1 +25%
8504.33.00Having a power handling capacity exceeding 16 kVA but not exceeding 500 kVA1.6%List 1 +25%
8504.34.00Having a power handling capacity exceeding 500 kVA1.6%List 1 +25%
8504.40.40Speed drive controllers for electric motorsFreeList 1 +25%
8504.40.60Suitable for physical incorporation into automatic data processing machines or units thereof o…FreeList 3 +25%
8504.40.70Power supplies for automatic data processing machines or units thereof of headin…: OtherFreeList 3 +25%
8504.40.85For telecommunication apparatusFreeList 3 +25%
8504.40.95Static converters: OtherFreeList 3 +25% (1 product exclusion may apply)1
8504.50.40For power supplies for automatic data processing machines or units thereof of heading 8471; po…FreeList 3 +25%
8504.50.80Other inductors: OtherFreeList 3 +25%
8504.90.20Of power supplies for automatic data processing machines or units thereof of hea…: Printed cir…FreeList 3 +25%
8504.90.41Of power supplies for automatic data processing machines or units thereof of hea…: OtherFreeList 1 +25%
8504.90.65Of the goods of subheading 8504.40 or 8504.50 for telecommunication apparatusFreeList 1 +25%
8504.90.75Printed circuit assemblies: OtherFreeList 1 +25% (1 product exclusion may apply)1
8504.90.96Other: OtherFreeList 1 +25%

All of chapter 85 · Chapter 85 rate summary · HTS lookup

General information from the official US Harmonized Tariff Schedule (USITC) and USTR Section 301 notices in HTS Chapter 99; not legal or customs advice. Classification is decided by CBP; confirm with a licensed customs broker or a CBP binding ruling.