# HS code 8502.40: Electric rotary converters > HS code 8502.40 covers electric rotary converters. It sits in heading 85.02 (electric generating sets and rotary converters) in chapter 85 (electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles). Other goods of heading 85.02 are classified under 8502.11 (generating sets with compression-ignition internal combustion piston engines (diesel or semi-diesel engines), of an output not exceeding 75 kVA), 8502.12 (generating sets with compression-ignition internal combustion piston engines (diesel or semi-diesel engines), of an output exceeding 75 kVA but not exceeding 375 kVA), 8502.13 (generating sets with compression-ignition internal combustion piston engines (diesel or semi-diesel engines), of an output exceeding 375 kVA), 8502.20 (generating sets with spark-ignition internal combustion piston engines) or 2 others. National tariff lines under 8502.40 are live on border.bot for the United States (1 line, also used by 1 other country). Source: https://border.bot/hs-codes/850240 Last updated: 11 October 2026 [HS codes](https://border.bot/hs-codes) / [Chapter 85](https://border.bot/hs-codes/85) / [85.02](https://border.bot/hs-codes/8502) / [8502.40](https://border.bot/hs-codes/850240) ## Key facts - HS code: 8502.40 - Covers: Electric rotary converters - Heading: [85.02: Electric generating sets and rotary converters](https://border.bot/hs-codes/8502) - Chapter: [85: Electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles](https://border.bot/hs-codes/85) - Edition: HS2022 - Duty in the United States: [See its 1 line](https://border.bot/countries/united-states/hs-codes/850240) ## What this code covers HS code 8502.40 covers electric rotary converters. The legal text of the subheading is “Electric rotary converters”, in HS2022. ## What it doesn’t cover Other goods of heading 85.02 are classified under 8502.11 (generating sets with compression-ignition internal combustion piston engines (diesel or semi-diesel engines), of an output not exceeding 75 kVA), 8502.12 (generating sets with compression-ignition internal combustion piston engines (diesel or semi-diesel engines), of an output exceeding 75 kVA but not exceeding 375 kVA), 8502.13 (generating sets with compression-ignition internal combustion piston engines (diesel or semi-diesel engines), of an output exceeding 375 kVA), 8502.20 (generating sets with spark-ignition internal combustion piston engines) or 2 others. - [8502.11](https://border.bot/hs-codes/850211) Generating sets with compression-ignition internal combustion piston engines (diesel or semi-diesel engines): Of an output not exceeding 75 kVA - [8502.12](https://border.bot/hs-codes/850212) Generating sets with compression-ignition internal combustion piston engines (diesel or semi-diesel engines): Of an output exceeding 75 kVA but not exceeding 375 kVA - [8502.13](https://border.bot/hs-codes/850213) Generating sets with compression-ignition internal combustion piston engines (diesel or semi-diesel engines): Of an output exceeding 375 kVA - [8502.20](https://border.bot/hs-codes/850220) Generating sets with spark-ignition internal combustion piston engines - [8502.31](https://border.bot/hs-codes/850231) Other generating sets: Wind-powered - [8502.39](https://border.bot/hs-codes/850239) Other generating sets: Other ## How it is structured 8502.40 is a six-digit subheading. Its first two digits, 85, are the chapter; the first four, 8502, are heading 85.02; the last two, 40, identify the subheading within the heading. Countries add their own digits after these six for their national tariff lines. - Chapter 85: Electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles - Heading 85.02: Electric generating sets and rotary converters - Subheading 8502.40: Electric rotary converters ## In other countries National tariff lines under 8502.40 are live on border.bot for the United States (1 line, also used by 1 other country). - [United States](https://border.bot/countries/united-states/hs-codes/850240): 1 line, used by 1 other country - Previous subheading: [8502.39](https://border.bot/hs-codes/850239) Other generating sets: Other - Next subheading: [8503.00](https://border.bot/hs-codes/850300) Parts suitable for use solely or principally with the machines of heading 85.01 or 85.02 ## Frequently asked questions ### What does HS code 8502.40 cover? HS code 8502.40 covers electric rotary converters. ### Which heading and chapter is HS code 8502.40 in? HS code 8502.40 is in heading 85.02 (electric generating sets and rotary converters) in chapter 85 (electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles). ### Where are goods of heading 85.02 classified when 8502.40 doesn’t fit? Other goods of heading 85.02 are classified under 8502.11 (generating sets with compression-ignition internal combustion piston engines (diesel or semi-diesel engines), of an output not exceeding 75 kVA), 8502.12 (generating sets with compression-ignition internal combustion piston engines (diesel or semi-diesel engines), of an output exceeding 75 kVA but not exceeding 375 kVA), 8502.13 (generating sets with compression-ignition internal combustion piston engines (diesel or semi-diesel engines), of an output exceeding 375 kVA), 8502.20 (generating sets with spark-ignition internal combustion piston engines) or 2 others. ### Which countries’ tariffs list national lines under HS code 8502.40? National tariff lines under 8502.40 are live on border.bot for the United States (1 line, also used by 1 other country). ## Sources and updates The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026. This page was last updated on 11 October 2026. Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling. Machine-readable: https://border.bot/hs-codes/850240.json