HS code · 6-digit subheading
HS Code 8504.40 – Electrical static converters
HS code 8504.40 is the 6-digit subheading for electrical static converters. It is used for AC-DC power supplies, DC-DC converters, solar inverters, uninterruptible power supplies (UPS) and battery chargers.
What HS 8504.40 covers
This HS code encompasses electrical static converters, which are devices that transform electrical power from one form to another, such as AC to DC (rectifiers), DC to AC (inverters), or DC to DC. They are fundamental components in modern electrical systems, enabling the efficient operation of everything from renewable energy grids and electric vehicles to industrial machinery and consumer electronics. Key players in international trade include manufacturers of power electronics, automotive companies, and energy solution providers. The trade is driven by the global push for energy efficiency, electrification, and the integration of diverse power sources. Considerations like power rating, conversion efficiency, and specific application requirements are crucial in this market. Countries with advanced manufacturing capabilities and high demand for sophisticated electronic systems are typically the largest importers and exporters.
- Covers
- AC-DC power supplies
- DC-DC converters
- Solar inverters
- Uninterruptible power supplies (UPS)
- Battery chargers
- Frequency converters
- Rectifiers for industrial use
- Examples
- Victron Energy MultiPlus
- Schneider Electric Conext
- Delta Electronics power supplies
- Tesla EV inverters
- APC UPS systems
Codes often confused with 8504.40
Common mistake. This code can be confused with 850450 (inductors) or 850490 (parts of converters) if not a complete, functional unit. It may also be mistaken for 8507 (electric accumulators) if integrated into a battery system, but 850440 specifically covers the conversion electronics.
Top exporters and importers of HS code 850440, 2025
In 2025, the largest exporter of HS code 850440 in UN Comtrade data was China, with 31% of world exports; the largest importer in UN Comtrade data was the United States, with 17% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 China $34.5B 31% of world exports
- 2 Germany $9.3B 8.5% of world exports
- 3 United States $6.2B 5.7% of world exports
World total: $109.6B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $18.2B 17% of world imports
- 2 Germany $9.7B 9.2% of world imports
- 3 China $6.3B 6.0% of world imports
World total: $105.1B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM codes for 8504.40 9
Brazil splits HS 8504.40 into 9 NCM codes, Mercosur's 8-digit tariff lines.
- 8504.40.10 Accumulator (battery) chargersCarregadores de acumuladores
- 8504.40.2 Rectifiers, other than accumulator chargersRetificadores, exceto carregadores de acumuladores Group
- 8504.40.21 Crystal (semiconductor) rectifiersDe cristal (semicondutores)
- 8504.40.22 Electrolytic rectifiersEletrolíticos
- 8504.40.29 Other rectifiersOutros
- 8504.40.30 Direct current (DC) convertersConversores de corrente contínua
- 8504.40.40 Uninterruptible power supplies (UPS)Equipamento de alimentação ininterrupta de energia (UPS ou no break)
- 8504.40.50 Electronic frequency converters for motor speedConversores eletrônicos de frequência, para variação de velocidade de motores elétricos
- 8504.40.60 Power supplies for emergency lightingAparelhos eletrônicos de alimentação de energia do tipo utilizado para iluminação de emergência
- 8504.40.90 Other static convertersOutros
All Brazil NCM codes in heading 85.04 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 8504.40
What is HS code 850440?
HS code 850440 is a 6-digit subheading in the Harmonized System that covers: Electrical static converters. This HS code encompasses electrical static converters, which are devices that transform electrical power from one form to another, such as AC to DC (rectifiers), DC to AC (inverters), or DC to DC. They are fundamental components in modern electrical systems, enabling the efficient operation of everything from renewable energy grids and electric vehicles to industrial machinery and consumer electronics. Key players in international trade include manufacturers of power electronics, automotive companies, and energy solution providers. The trade is driven by the global push for energy efficiency, electrification, and the integration of diverse power sources. Considerations like power rating, conversion efficiency, and specific application requirements are crucial in this market. Countries with advanced manufacturing capabilities and high demand for sophisticated electronic systems are typically the largest importers and exporters.
What products fall under HS code 850440?
AC-DC power supplies, DC-DC converters, solar inverters, uninterruptible power supplies (UPS), battery chargers, frequency converters, rectifiers for industrial use
What are common misclassifications for HS code 850440?
This code can be confused with 850450 (inductors) or 850490 (parts of converters) if not a complete, functional unit. It may also be mistaken for 8507 (electric accumulators) if integrated into a battery system, but 850440 specifically covers the conversion electronics.
Which countries are the top exporters of goods under HS code 850440?
In 2025, the top exporters of HS code 850440 in UN Comtrade data were China ($34.5B, 31% of world exports), Germany ($9.3B) and the United States ($6.2B). World exports came to about $109.6B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 850440?
In 2025, the top importers of HS code 850440 in UN Comtrade data were the United States ($18.2B, 17% of world imports), Germany ($9.7B) and China ($6.3B). World imports came to about $105.1B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 850440 structured?
HS code 850440 is a 6-digit subheading under the Harmonized System. The first 2 digits (85) identify the chapter, digits 3-4 (04) identify the heading, and digits 5-6 (40) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 850440?
Brazil splits HS code 850440 into 9 NCM codes: 8504.40.10 (Accumulator (battery) chargers), 8504.40.21 (Crystal (semiconductor) rectifiers), 8504.40.22 (Electrolytic rectifiers), 8504.40.29 (Other rectifiers), 8504.40.30 (Direct current (DC) converters), 8504.40.40 (Uninterruptible power supplies (UPS)), 8504.40.50 (Electronic frequency converters for motor speed), 8504.40.60 (Power supplies for emergency lighting), and more listed on this page. The first 6 digits of each match the HS code.