HTS 8504: Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof
Heading 8504 of the Harmonized Tariff Schedule of the United States has 54 ten-digit statistical numbers. A US entry line in ACE needs the full ten digits, with the quantity in No. or No./kg.
Check additional duties before you file
- If the goods are made in China, check Section 301 duties under HTSUS heading 9903.88, on top of the general rate, and any exclusions.
| HTSUS number | Description | Unit | General rate |
|---|---|---|---|
| 8504.10.00.00 | Ballasts for discharge lamps or tubes | No. | 3% |
| Liquid dielectric transformers: | |||
| 8504.21.00 | Having a power handling capacity not exceeding 650 kVA | Free | |
| 8504.21.00.20 | Having a power handling capacity not exceeding 50 kVA | No./kg | |
| 8504.21.00.40 | Having a power handling capacity exceeding 50 kVA but not exceeding 100 kVA | No./kg | |
| 8504.21.00.60 | Having a power handling capacity exceeding 100 kVA but not exceeding 500 kVA | No./kg | |
| 8504.21.00.80 | Having a power handling capacity exceeding 500 kVA but not exceeding 650 kVA | No./kg | |
| 8504.22.00 | Having a power handling capacity exceeding 650 kVA but not exceeding 10,000 kVA | Free | |
| 8504.22.00.40 | Having a power handling capacity exceeding 650 kVA but not exceeding 2,500 kVA | No./kg | |
| 8504.22.00.80 | Having a power handling capacity exceeding 2,500 kVA but not exceeding 10,000 kVA | No./kg | |
| 8504.23.00 | Having a power handling capacity exceeding 10,000 kVA | 1.6% | |
| 8504.23.00.41 | Having a power handling capacity exceeding 10,000 kVA but not exceeding 59,999 kVA | No./kg | |
| 8504.23.00.45 | Having a power handling capacity exceeding 59,999 kVA but not exceeding 100,000 kVA | No./kg | |
| 8504.23.00.80 | Having a power handling capacity exceeding 100,000 kVA | No./kg | |
| Other transformers: | |||
| 8504.31 | Having a power handling capacity not exceeding 1 kVA: | ||
| 8504.31.20.00 | Unrated | No. | Free |
| Other: | |||
| 8504.31.40 | Having a power handling capacity less than 1 kVA | 6.6% | |
| 8504.31.40.35 | Having a power handling capacity less than 40 VA | No. | |
| 8504.31.40.65 | Having a power handling capacity 40 VA or greater | No. | |
| 8504.31.60.00 | Having a power handling capacity of 1 kVA | No. | 1.6% |
| 8504.32.00.00 | Having a power handling capacity exceeding 1 kVA but not exceeding 16 kVA | No./kg | 2.4% |
| 8504.33.00 | Having a power handling capacity exceeding 16 kVA but not exceeding 500 kVA | 1.6% | |
| 8504.33.00.20 | Having a power handling capacity exceeding 16 kVA but not exceeding 50 kVA | No./kg | |
| 8504.33.00.40 | Having a power handling capacity exceeding 50 kVA but not exceeding 500 kVA | No./kg | |
| 8504.34.00.00 | Having a power handling capacity exceeding 500 kVA | No./kg | 1.6% |
| 8504.40 | Static converters: | ||
| 8504.40.40.00 | Speed drive controllers for electric motors | No. | Free |
| Power supplies for automatic data processing machines or units thereof of heading 8471; power supplies for goods of subheading 8443.31 or 8443.32; power supplies for monitors of subheading 8528.42 or 8528.52 or projectors of subheading 8528.62: | |||
| 8504.40.60 | Suitable for physical incorporation into automatic data processing machines or units thereof of heading 8471 | Free | |
| 8504.40.60.01 | With a power output not exceeding 50 W | No. | |
| 8504.40.60.07 | With a power output exceeding 50 W but not exceeding 150 W | No. | |
| 8504.40.60.12 | With a power output exceeding 150 W but not exceeding 500 W | No. | |
| 8504.40.60.18 | Other | No. | |
| 8504.40.70 | Other | Free | |
| 8504.40.70.01 | With a power output not exceeding 50 W | No. | |
| 8504.40.70.07 | With a power output exceeding 50 W but not exceeding 150 W | No. | |
| 8504.40.70.12 | With a power output exceeding 150 W but not exceeding 500 W | No. | |
| 8504.40.70.18 | Other | No. | |
| 8504.40.85.00 | For telecommunication apparatus | No. | Free |
| 8504.40.95 | Other | Free | |
| Rectifiers and rectifying apparatus: | |||
| Power supplies: | |||
| 8504.40.95.10 | With a power output not exceeding 50 W | No. | |
| 8504.40.95.20 | With a power output exceeding 50 W but not exceeding 150 W | No. | |
| 8504.40.95.30 | With a power output exceeding 150 W but not exceeding 500 W | No. | |
| 8504.40.95.40 | Other | No. | |
| 8504.40.95.50 | Other | No. | |
| Inverters: | |||
| 8504.40.95.71 | Of a capacity not exceeding 200 W | No. | |
| 8504.40.95.73 | Of a capacity exceeding 200 W but not exceeding 650 W | No. | |
| 8504.40.95.75 | Of a capacity exceeding 650 W but not exceeding 20,000 W | No. | |
| 8504.40.95.77 | Of a capacity exceeding 20,000 W but not exceeding 125,000 W | No. | |
| 8504.40.95.78 | Of a capacity exceeding 125,000 W but not exceeding 1,000,000 W | No. | |
| 8504.40.95.79 | Other | No. | |
| 8504.40.95.80 | Other | No. | |
| 8504.50 | Other inductors: | ||
| 8504.50.40.00 | For power supplies for automatic data processing machines or units thereof of heading 8471; power supplies for goods of subheading 8443.31 or 8443.32; power supplies for monitors of subheading 8528.42 or 8528.52 or projectors of subheading 8528.62; for telecommunication apparatus | No. | Free |
| 8504.50.80.00 | Other | No. | Free |
| 8504.90 | Parts: | ||
| Of power supplies for automatic data processing machines or units thereof of heading 8471; of power supplies for goods of subheading 8443.31 or 8443.32; of power supplies for monitors of subheading 8528.42 or 8528.52 or projectors of subheading 8528.62: | |||
| 8504.90.20.00 | Printed circuit assemblies | No. | Free |
| 8504.90.41.00 | Other | No. | Free |
| Other: | |||
| Printed circuit assemblies: | |||
| 8504.90.65.00 | Of the goods of subheading 8504.40 or 8504.50 for telecommunication apparatus | No. | Free |
| 8504.90.75.00 | Other | No. | Free |
| 8504.90.96 | Other | Free | |
| Ferrites: | |||
| 8504.90.96.10 | For transformers | No. | |
| 8504.90.96.30 | Other | No. | |
| Other parts: | |||
| Of transformers: | |||
| 8504.90.96.34 | Laminations for incorporation into stacked cores | No./kg | |
| 8504.90.96.38 | Stacked cores for incorporation into transformers | No./kg | |
| 8504.90.96.42 | Wound cores for incorporation into transformers | No./kg | |
| 8504.90.96.46 | Other | No./kg | |
| 8504.90.96.50 | Of static converters | No. | |
| 8504.90.96.90 | Other | No. |
Common paperwork mistakes with heading 8504
- The invoice shows the exporter's own code. Only the first six digits are shared worldwide; the US number has ten. Check every line against the list above.
- The quantity is in the wrong unit. These lines report quantity in No. or No./kg, which may not match the invoice's cartons, sets or pieces.
- The packing list and the bill of lading disagree on cartons or gross weight, which can lead to holds and exams.
- The manufacturer's name and address are missing, so the MID cannot be built from the documents.
Look up any ten-digit number, or read the guide to invoice and packing list mismatches.
Check the whole shipment, not one number
FreightProof reads the invoice, packing list and bill of lading together, validates every HTS number and container, builds the MIDs and flags what does not match — in about two minutes.
Data: Harmonized Tariff Schedule of the United States, US International Trade Commission. Rates are for information only.