What is the duty rate for HTS 8504.31?

The general duty rate for HTS 8504.31 is Free. This code covers: Having a power handling capacity not exceeding 1 kVA :.

HTS 8504.31Chapter 85

HTS 8504.31 — Having a power handling capacity not exceeding <il>1 kVA</il>: Duty Rate & Import Guide

Electrical Machinery and Equipment · 2 court cases · $50.0M monthly imports · 100% from 1 countries · Updated daily from USITC

Duty Rates

General

Free

Special

Free

Column 2

Free

Trade Agreement Eligibility

CUSMAKORUS

Trade Intelligence

Monthly Imports

$50.0M

2026-01

Trade Concentration

100%

from top 3 of 1 origins

Regulatory Pressure

MODERATE

4 rulings — · 0 reg · 2 CIT, 0 CAFC

Global Rates

🇺🇸 Free

🇬🇧 United Kingdom: N/A · 🇪🇺 European Union: N/A · 🇨🇦 Canada: Free · 🇧🇷 Brazil: 6 NCM codes

Compare All →

Data compiled from USITC HTS, US Census Bureau, CBP CROSS Rulings, CourtListener, HMRC / DG TAXUD / CBSA / SISCOMEX · As of 2026-04-28 · Updates monthly

Supply Chain Risk

100% of US imports for this code come from just 1 countries. High origin concentration increases exposure to trade disruptions or tariff escalations.

Trade Remedy

Additional Tariffs Apply

Section 301 — China Tariffs+25%

List 1 — ~$34B of Chinese goods (machinery, electronics, industrial components)

Active — 7.5%–25% additional duties on Chinese-origin goods across four tranches (Lists 1–4A), with higher 2024/2025 increases on targeted product categories.

Effective 2018-07-06

These additional tariffs apply on top of the general duty rate. View full trade remedy tracker →

Subheadings (6)

Code	Description	Rate
8504.31	Having a power handling capacity not exceeding <il>1 kVA</il>:	—
8504.31.20.00	Unrated	Free
8504.31.40	Having a power handling capacity less than <il>1 kVA</il>	6.6%
8504.31.40.35	Having a power handling capacity less than <il>40 VA</il>	—
8504.31.40.65	Having a power handling capacity <il>40 VA</il> or greater	—
8504.31.60.00	Having a power handling capacity of <il>1 kVA</il>	1.6%

CBP Rulings (4)

953331Classification

Protest No. 2704-92-100453; Flyback Transformers; PC 848447; parts of television apparatus; Section XVI, note 2,3

H306282Classification

Application for Further Review of Protest No. 2704-19-104352; Classification of a Push-Pull Transformer

966872Classification

Power Transformers

H140781Classification

Application for Further Review of Protest No 1601-10-100256; Tariff Classification of Neon Transformers

Court of International Trade & Federal Circuit (2)

Trumpf Medical Systems, Inc. v. United States2011-01-18

Slip Op. 11-5; Court 07-00316United States Court of International Trade

Power-One Inc. v. United States1999-12-14

Slip Op. 99-133; 97-08-01340United States Court of International Trade

Matching Export Code (Schedule B)

8504312000Schedule B

TRANSFORMERS, HAVING A POWER HANDLING CAPACITY NOT EXCEEDING 1 KVA, UNRATED, NESOI

Census Bureau export classification matching this HTS import code.

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