# HTS 8504.33.00, Dry-type transformer, 16 to 500 kVA: US import duty by origin

URL: https://open-factory.com/tariffs/8504-33-00/
Data as of: 2026-09-09
Publisher: Open Factory, https://open-factory.com

**What is the US import duty on Dry-type transformer, 16 to 500 kVA?** Dry-type transformer, 16 to 500 kVA, HTS 8504.33.00, imported from China carries 51.6% all-in US duty (column 1 1.6%, Section 232 25%, Section 301 25%); the lowest of nine origins is Mexico at 25% and the highest China at 51.6%. Open Factory tariff schedule as of September 9, 2026.

## Facts

- HTS line: 8504.33.00, Dry-type transformer, 16 to 500 kVA
- Column 1 (MFN) rate: 1.6%
- Section 232 tier: I-B
- Lowest all-in duty: Mexico, 25%
- Highest all-in duty: China, 51.6%
- Checked on: September 9, 2026

## All-in US duty on HTS 8504.33.00 by origin, percent of customs value, as of September 9, 2026

| Origin | Column 1 | Section 232 | Section 301 | All-in | Note |
| --- | --- | --- | --- | --- | --- |
| China | 1.6% | 25% | 25% | 51.6% | 25% on full customs value (Annex I-B, 9903.82.09) |
| Mexico | 0% | 25% | 0% | 25% | USMCA-qualifying goods enter free of the column 1 duty; non-qualifying goods add the column 1 rate; 25% on full customs value (Annex I-B, 9903.82.09) |
| Canada | 0% | 25% | 0% | 25% | USMCA-qualifying goods enter free of the column 1 duty; non-qualifying goods add the column 1 rate; Section 338 (Aug 19 2026) covers dairy, alcohol and motor vehicles only; 25% on full customs value (Annex I-B, 9903.82.09) |
| EU | 1.6% | 25% | 0% | 26.6% | 25% on full customs value (Annex I-B, 9903.82.09) |
| Japan | 1.6% | 25% | 0% | 26.6% | 25% on full customs value (Annex I-B, 9903.82.09) |
| Korea | 0% | 25% | 0% | 25% | KORUS-qualifying goods enter free of the column 1 duty; non-qualifying goods add the column 1 rate; 25% on full customs value (Annex I-B, 9903.82.09) |
| Taiwan | 1.6% | 25% | 0% | 26.6% | 25% on full customs value (Annex I-B, 9903.82.09) |
| India | 1.6% | 25% | 0% | 26.6% | 25% on full customs value (Annex I-B, 9903.82.09) |
| Vietnam | 1.6% | 25% | 0% | 26.6% | 25% on full customs value (Annex I-B, 9903.82.09) |

## Questions

### What is the US import duty on Dry-type transformer, 16 to 500 kVA from China?

51.6% all-in: column 1 1.6%, Section 232 25%, Section 301 25%.

### Which origin has the lowest duty for HTS 8504.33.00?

Mexico at 25%, assuming the good qualifies under USMCA.

### What do the layers mean?

Column 1 is the general HTS rate. Section 232 is the metals and derivatives tariff, per Proclamation 11021, 91 FR 18201 (Apr 9 2026), CSMS 68253075; Proclamation 11032, 91 FR 34085 (Jun 4 2026), CSMS 68855869. Section 301 is the China list tariff plus the forced-labor additive where it applies. The all-in figure stacks them on the customs value.

### How current is this?

Checked September 9, 2026 against HTS 2026 and the Federal Register notices cited below. The page is rebuilt on every tariff event.

## Related articles

- [Tariffs, September 2026: The Actual Schedule for Machinery and Electrical Gear](https://open-factory.com/articles/tariff-schedule-2026/)
- [How to Write an RFQ for Capital Equipment in 2026](https://open-factory.com/articles/rfq-capital-equipment/)
- [Tariff Bill of Materials: What Sections 232 and 301 Add to a UPS, a Lineup, a Genset and a Megapack](https://open-factory.com/articles/tariff-bom-electrical/)
- [Copper at $6.77: How a 50% Tariff Shows Up in a 200-Amp Panel](https://open-factory.com/articles/copper-tariff-panel/)
- [Japan Is Eating the US Capex Boom](https://open-factory.com/articles/japan-eats-capex-boom/)
- [Why Your Switchgear Costs 50% More Than in 2021](https://open-factory.com/articles/switchgear-50-percent/)

## Sources

- [Open Factory tariff schedule, 22 HTS lines x 9 origins](https://open-factory.com/articles/tariff-schedule-2026/)
- [HTS 2026 Rev. 18, hts.usitc.gov](https://hts.usitc.gov/)
- [Proclamation 11021, 91 FR 18201](https://www.federalregister.gov/citation/91-FR-18201)
- [Proclamation 11032, 91 FR 34085](https://www.federalregister.gov/citation/91-FR-34085)
- [USTR Section 301 notice, 91 FR 47318](https://www.federalregister.gov/citation/91-FR-47318)

Calculator: https://open-factory.com/tools/tariff-exposure-calculator/