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Customs code · HS subheading 8504 40

Final code reached

Static inverters with optimal energy conversion function (MPPT)

This is a complete 8-digit customs code. Exports and Intrastat use it as it is. For an import into the EU, pick a 10-digit line below.

This code covers static inverters that have an optimal energy conversion function, identified as MPPT. It is for inverters, not battery chargers or rectifiers.

For example

  • A static inverter with MPPT
  • A photovoltaic inverter with MPPT
See the official tariff text

Official tariff text

Inverters with maximum power point tracking functionality

You are seeing what applies when you export from the EU. Switch above if you import.

You are seeing what applies when you import into the EU. Switch above if you export.

Your answer for export

The full EU export code is 8504 40 84.

You do not pick a 10-digit EU import line for an export declaration or Intrastat. The destination classifies the goods under its own tariff.

8 digits, ready

Selling to Norway, Great Britain and the United States

What they charge on arrival.

Norway, Great Britain and the United States use their own tariff lines under the 6-digit HS code. The rates below are what their customs charge on goods arriving from the EU. Match the goods against each country's own wording before you rely on a rate.

Norway

Duty free

  • Their lines2 Norwegian lines

85.04.4010 Rectifiers

Norwegian tariff data checked Sept. 13, 2026.

Great Britain

Duty free

  • Their lines2 British lines

8504 40 84 10 For use in civil aircraft

Northern Ireland follows other rules.

UK tariff data checked Sept. 13, 2026.

United States

We do not estimate this one.

The published measures for Section 232, other have not been read for this line yet, so we do not estimate it. Ask your US importer or broker.

Not estimated

  • Their lines22 US lines
  • Entry dateSept. 18, 2026

8504.40.40.00 Electrical transformers, static converters (for example, rectifiers) and inductors; parts

The US importer of record files the entry.

US tariff data checked Sept. 16, 2026.

See the 2 Norwegian lines

Selling to Norway

Norway splits the 6-digit category its own way, so these are Norway's own lines under it, not this EU code. Check your product against their wording; what Norwegian customs charges is shown per line.

  • 85.04.4010

    Rectifiers

    Ordinary duty
    Duty free

  • 85.04.4090

    Other

    Ordinary duty
    Duty free

Norwegian tariff data version 1.5/1.2, last checked Sept. 13, 2026.

Contains data from Norwegian Customs (data.toll.no), licensed under CC BY 4.0, adapted for display.

See the 2 British lines

Selling to Great Britain

What UK customs charges when goods like these arrive in Great Britain.

  • All 2 UK lines under this code

    They all have the same duty rates shown here.

    Ordinary duty
    Duty free

These rates apply in Great Britain. Different rules may apply for goods entering Northern Ireland.

UK tariff data version v4.0.1599, last checked Sept. 13, 2026.

Contains public sector information licensed under the Open Government Licence v3.0.

Source: UK Department for Business and Trade (data.api.trade.gov.uk).

See the 22 US lines

Selling to the United States

What US customs charges when goods like these arrive from the EU. The US importer of record files the entry and pays the duty.

  • 8504.40.40.00

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Speed drive controllers for electric motors

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.60.01

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Power supplies for automatic data processing machines or units thereof of heading 8471; power supplies for goods of subheading 8443.31 or 8443.32; power supplies for monitors of subheading 8528.42 or 8528.52 or projectors of subheading 8528.62, Suitable for physical incorporation into automatic data processing machines or units thereof of heading 8471, With a power output not exceeding 50 W

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.60.07

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Power supplies for automatic data processing machines or units thereof of heading 8471; power supplies for goods of subheading 8443.31 or 8443.32; power supplies for monitors of subheading 8528.42 or 8528.52 or projectors of subheading 8528.62, Suitable for physical incorporation into automatic data processing machines or units thereof of heading 8471, With a power output exceeding 50 W but not exceeding 150 W

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.60.12

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Power supplies for automatic data processing machines or units thereof of heading 8471; power supplies for goods of subheading 8443.31 or 8443.32; power supplies for monitors of subheading 8528.42 or 8528.52 or projectors of subheading 8528.62, Suitable for physical incorporation into automatic data processing machines or units thereof of heading 8471, With a power output exceeding 150 W but not exceeding 500 W

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.60.18

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Power supplies for automatic data processing machines or units thereof of heading 8471; power supplies for goods of subheading 8443.31 or 8443.32; power supplies for monitors of subheading 8528.42 or 8528.52 or projectors of subheading 8528.62, Suitable for physical incorporation into automatic data processing machines or units thereof of heading 8471, Other

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.70.01

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Power supplies for automatic data processing machines or units thereof of heading 8471; power supplies for goods of subheading 8443.31 or 8443.32; power supplies for monitors of subheading 8528.42 or 8528.52 or projectors of subheading 8528.62, Other, With a power output not exceeding 50 W

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.70.07

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Power supplies for automatic data processing machines or units thereof of heading 8471; power supplies for goods of subheading 8443.31 or 8443.32; power supplies for monitors of subheading 8528.42 or 8528.52 or projectors of subheading 8528.62, Other, With a power output exceeding 50 W but not exceeding 150 W

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.70.12

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Power supplies for automatic data processing machines or units thereof of heading 8471; power supplies for goods of subheading 8443.31 or 8443.32; power supplies for monitors of subheading 8528.42 or 8528.52 or projectors of subheading 8528.62, Other, With a power output exceeding 150 W but not exceeding 500 W

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99
Show all 22 lines

  • 8504.40.70.18

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Power supplies for automatic data processing machines or units thereof of heading 8471; power supplies for goods of subheading 8443.31 or 8443.32; power supplies for monitors of subheading 8528.42 or 8528.52 or projectors of subheading 8528.62, Other

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.85.00

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, For telecommunication apparatus

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.95.10

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Other, Rectifiers and rectifying apparatus, Power supplies, With a power output not exceeding 50 W

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.95.20

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Other, Rectifiers and rectifying apparatus, Power supplies, With a power output exceeding 50 W but not exceeding 150 W

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.95.30

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Other, Rectifiers and rectifying apparatus, Power supplies, With a power output exceeding 150 W but not exceeding 500 W

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.95.40

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Other, Rectifiers and rectifying apparatus, Power supplies, Other

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.95.50

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Other, Rectifiers and rectifying apparatus, Other

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.95.71

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Other, Inverters, Of a capacity not exceeding 200 W

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.95.73

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Other, Inverters, Of a capacity exceeding 200 W but not exceeding 650 W

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.95.75

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Other, Inverters, Of a capacity exceeding 650 W but not exceeding 20,000 W

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.95.77

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Other, Inverters, Of a capacity exceeding 20,000 W but not exceeding 125,000 W

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.95.78

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Other, Inverters, Of a capacity exceeding 125,000 W but not exceeding 1,000,000 W

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.95.79

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Other, Inverters, Other

    General rate
    Free
    From the EU
    10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

  • 8504.40.95.80

    Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof, Static converters, Other

    General rate
    Free
    From the EU
    No single figure Not estimated The published measures for Section 232, other have not been read for this line yet, so we do not estimate it. Ask your US importer or broker.

Worked out for an entry on Sept. 18, 2026.

US tariff schedule 2026HTSRev19, last checked Sept. 16, 2026.

Last change we recorded: Revision 19 (2026), Sept. 16, 2026.

Anti-dumping and countervailing duties, US import taxes and customs fees are not included.

The descriptions above are the US tariff texts, which the United States publishes in English only.

Source: the US International Trade Commission's Harmonized Tariff Schedule (hts.usitc.gov), public domain, and the measures published in the Federal Register.

This is a planning estimate from the US Harmonized Tariff Schedule (revision shown) and the published Federal Register measures as of the date shown, for a shipment of EU origin. It is not a customs entry, legal advice or a broker's opinion, and tariffs.help is not a US-licensed customs broker. The US importer of record or their broker confirms the classification, origin, value and the duty due before filing.

Before you use the code

Check the facts that sit outside the code

The code can be right while what you pay still changes, because of where the goods come from, when they arrive, or extra EU measures.

Classify your own product, free Look up the current rates and rules
  1. The product and its form Check that your product really matches this description, including what it is made of and the form it arrives in.
  2. Country of origin Trade agreements, sanctions and extra measures can change the treatment of the very same code.
  3. Current tariff measures Check today's rate, any restrictions or licences, and the quantity customs asks for, with Toldstyrelsen or TARIC.

On an EU import declaration

Pick the 10-digit line that matches the goods.

2 import lines

When these goods are imported into the EU, the declaration needs a 10-digit code. Under 8504 40 84 the EU tariff has 2 lines, each with its own wording.

You or your customs agent pick the line whose wording fits the goods; the last line, "Other", covers what none of the specific wordings describe.

  1. Match the whole wording A line is its own wording plus the grouping text above it. Read both before you settle on one.

Exports from the EU and Intrastat normally use the 8-digit code as it is.

EU tariff data of Sept. 13, 2026.

Rates, origin and documents

Read the signals first. Open only the ones you want to check.

Besides the ordinary duty, the EU records these kinds of measure against this code. They are listed as signals only: whether one applies to your goods can depend on where they come from, who produced them, the exact product and the documents you present. No amounts are worked out here.

Data of Sept. 1, 2026

Customs also asks for the quantity in number of items

Required

The declaration asks for the actual quantity in number of items. It replaces neither the net mass nor the value: those come on top.

Example: if the quantity in number of items is 24, the declaration carries the number 24 in that field.

Lower duty for goods from some countries

Possible

Preferential rates exist for goods originating in:

  • Andorra
  • San Marino
  • Türkiye
  • European Union
  • Comoros (excluding Mayotte), Madagascar, Mauritius, Seychelles and dependencies and Zimbabwe
  • Botswana, Eswatini, Lesotho, Mozambique and Namibia
  • Western Sahara
  • European Union, Iceland, Liechtenstein and Norway
  • +35 origins

These rates apply to Economic Partnership Agreements; CARIFORUM except Haiti; GSP-EBA (Special arrangement for the least-developed countries - Everything But Arms); GSP+ (incentive arrangement for sustainable development and good governance); OCTs (Overseas Countries and Territories); GSP - General arrangements except India.

Whether you can use one depends on the origin rules for the goods and on the documentation you can show.

Check this code in the official EU TARIC database

Restrictions and paperwork

Important

Import restrictions are recorded for goods originating in:

  • North Korea (Democratic People’s Republic of Korea)
  • Ukraine
  • Belarus
  • Russian Federation
  • any country except Iran, Islamic Republic of
  • Iran, Islamic Republic of

The EU records document conditions on this code. What customs may ask for depends on where the goods come from, exactly what the product is and the customs procedure.

Proof of origin 2 conditions

If you claim a lower rate for goods from a country the EU has a trade agreement with, customs asks for proof of origin, for example a EUR.1 certificate or an origin declaration.

Show the EU's own wording for these conditions
  • Invoice declaration or origin declaration made out by any exporter on invoice or any other commercial document
  • Movement certificate EUR.1

Sanctions and restricted regions 17 conditions

Some conditions come from EU sanctions rules. They matter when the goods are linked to a country or region the EU restricts trade with.

Show the EU's own wording for these conditions
  • Goods not originating from or destined to Crimea or Sevastopol (Articles 2 and 2b.1 of Council Regulation (EU) No 692/2014)
  • Goods not originating from or not destined for the non-government controlled areas of Ukraine in the oblasts of Donetsk, Kherson, Luhansk and Zaporizhzhia
  • The prohibitions defined in article 1ra paragraph 1 of Council Regulation (EU) No 765/2006 do not apply (see exemptions in article 1ra paragraph 4)
  • The prohibitions defined in article 1ra paragraph 1 of Council Regulation (EU) No 765/2006 do not apply (see exemptions in article 1ra paragraph 3)
  • Goods entered the territory of the customs union of the EU and presented to customs authorities prior to the entry into force or to applicability date of the present sanction, whichever is latest (see Article 8f of Regulation (EU) No 765/2006)
  • Import authorisation by virtue of article 1ra paragraph 10 of Council Regulation (EU) 765/2006
  • Import authorisation by virtue of article 12b.2 of Council Regulation (EU) 833/2014
  • The prohibitions defined in article 3i.1 of Council Regulation (EU) No 833/2014 do not apply (see exemptions in article 3i.3i)
  • The prohibitions defined in article 3i.1 of Council Regulation (EU) No 833/2014 do not apply (see exemptions in article 3i.3aa)
  • Import authorisation by virtue of article 3i paragraph 3e of Council Regulation (EU) 833/2014
  • Import authorisation by virtue of article 3i paragraph 3c of Council Regulation (EU) 833/2014
  • Goods entered the territory of the customs union of the EU and presented to customs authorities prior to the entry into force or to applicability date of the present sanction, whichever is latest (see Article 12e of Regulation (EU) No 833/2014)
  • Import authorisation for restricted goods and technologies (Council Regulation (EU) No 267/2012)
  • Goods not consigned from Iran
  • Goods other than those described in the footnotes linked to the measure (Reg 267/2012)
  • The declared goods are not concerned by Council Regulation (EC) No. 267/2012, Annex II
  • Goods other than those described in the MG footnotes linked to the measure (Annex II, Part IV of Reg. (EU) 2017/1509)

Statements that the goods are outside a rule's scope 1 condition

Some conditions are statements that a rule does not cover the goods, for example that the product is not on a controlled list.

Show the EU's own wording for this condition
  • Goods other than those described in the footnotes linked to the measure
Check this code in the official EU TARIC database

EU tariff measure data of Sept. 1, 2026.

One last classification check

Check the path and the nearest alternatives.

Use this view if you are still unsure the code describes the product precisely.

How we got to this code

  1. XVI
  2. 85
  3. 8504
  4. 8504 40
  5. 8504 40 84
Show the steps

Compare with the codes next to it.

Compare the sibling codes at this level before you settle on this one.

Worth comparing

Codes that sit close to this one, for when the material itself could be different.

Browse chapter 85

Often confused with

Duty rates shown here are estimates, read from official EU / Danish, Norwegian and UK tariff data for orientation only. Confirm the current rate with Toldstyrelsen, TARIC, Norwegian Customs or the UK Online Trade Tariff before you file. The rate you pay can also depend on the country of origin. These are base customs duties only: import VAT, excise duties, anti-dumping duties and safeguard or quota measures are not included.