U.S. Customs and Border Protection · CROSS Database · 1 HTS code referenced
Primary HTS Code
8504.40.0025
$1324.5M monthly imports
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Ruling Age
37 years
Data compiled from CBP CROSS Rulings, Census Bureau Trade Data · As of 2026-05-02 · Updates monthly
The tariff classification of power modules from Italy
NY 836990 Mar 3, 1989 CLA-2-85:S:N:N1:109 836990 CATEGORY: Classification TARIFF NO.: 8504.40.0025 Mr. Mark Rendell Dawson XL Brokers International, Inc. 1060 West Florence Avenue Inglewood, CA 90301 RE: The tariff classification of power modules from Italy Dear Mr. Dawson: In your letter dated February 7, 1989, on behalf of International Rectifier Corporation, El Segundo, CA, you requested a tariff classification ruling. The power modules described on pages 79 through 86 of your catalog is a solid state device which consists of two or more thyristor and/or rectifier junctions encapsulated in a plastic isolated housing. Your letter states that the basic function of the module is to rectify alternating current into direct current at high power. The applicable subheading for the power modules will be 8504.40.0025, Harmonized Tariff Schedule of the United States (HTS), which provides for "Rectifiers and rectifying apparatus, other than power supplies." The rate of duty will be 3 percent ad valorem. This ruling is being issued under the provisions of Section 177 of the Customs Regulations (19 C.F.R. 177). A copy of this ruling letter should be attached to the entry documents filed at the time this merchandise is imported. If the documents have been filed without a copy, this ruling should be brought to the attention of the Customs officer handling the transaction. Sincerely, Jean F. Maguire Area Director New York Seaport