HS Code for Solar Charge Controller: 8504.40.55
The HS code for solar charge controller is 8504.40.55. Import duty rates: EU 0%, US Free, UK 0%. Rates verified April 2026 against USITC HTS.
Static converters — MPPT and PWM solar charge controllers
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Solar Charge Controller sits under HS 8504.40.55 (8504 — Electrical transformers, static converters and inductors). China-origin goods may still face Section 301 surcharges on top of the MFN rate. EU MFN 0%, UK 0%.
🇺🇸 US MFN: Free · HS 8504.40.55
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HS Code
8504 — Electrical transformers, static converters and inductors
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Classification Context
Chapter
Chapter 85 — Electrical machinery and equipment
Heading
8504 — Electrical transformers, static converters and inductors
Applicable Rule
GRI 1 — solar charge controllers are static converters (DC-DC power regulation) under 8504.40
Prior Rulings
EU — EBTI (Binding Tariff Information)
Search EU EBTI databaseUS — CBP CROSS Ruling Database
Search US CBP CROSS rulingsUK — HMRC Trade Tariff
View UK Trade Tariff commodityClassification Notes
MPPT (Maximum Power Point Tracking) and PWM (Pulse Width Modulation) solar charge controllers regulate voltage and current from solar panels to charge a battery bank. Both types are classified under 8504.40 as static converters. The MPPT algorithm is an electronic control function that doesn't shift the classification. Combined MPPT charge controller + inverter units in a single enclosure are 8504.40. Smart charge controllers with Bluetooth monitoring app connectivity are still 8504.40 — the communication function is ancillary. Solar charge controllers are distinct from battery chargers for consumer devices (8504.40 as well, but different subheading). Importers should note that some charge controllers are classified under 8537 (control panels) — verify against BTI rulings for the specific product configuration.
MFN Duty Rates by Market
European Union
8504.40.55
EU Combined Nomenclature (CN) rate — applies to all 27 EU member states
United States
8504.40.55
US Harmonized Tariff Schedule (HTS) MFN rate — Section 301 tariffs may add to China-origin goods
United Kingdom
8504.40.55
UK Global Tariff (UKGT) — post-Brexit tariff schedule, independent of EU CN
Related searches
Official Sources & References
WCO HS Nomenclature
World Customs Organisation — the international standard behind all HS codes
wcoomd.org
EU TARIC Database
European Commission integrated tariff — EU Combined Nomenclature (CN) rates
ec.europa.eu
US HTS Schedule (USITC)
United States International Trade Commission — official US Harmonized Tariff Schedule
hts.usitc.gov
UK Global Tariff (HMRC)
His Majesty's Revenue and Customs — UK Trade Tariff post-Brexit
trade-tariff.service.gov.uk
Disclaimer: Duty rates shown are MFN (Most-Favoured-Nation) base rates sourced from live tariff database and verified April 2026. Actual duties may differ based on country of origin, applicable trade agreements (e.g. GSP, CETA, UK-EU TCA), anti-dumping measures, or changes to tariff schedules. Always verify with the official tariff database of the importing country before making customs declarations.
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