This directory combines historical reference rows with separately labelled national sources. Read the source title, observation date, printed units and conditions on each entry. National source observations do not establish all measures applicable to a shipment.

United States Customs Tariff for HS Code 850490

Electrical transformers, static converters and inductors; parts thereof

USITC 2026 HTS Revision 19

26,806 official source entries are searchable. Checked 2026-09-22; edition published 2026-09-15.

Printed tariff and statistical lines from this edition, separate from historical WITS averages. Blank duty cells are not a confirmed zero. Review the parent tariff line, general and chapter notes, chapter 99, origin, exclusions, quotas and additional duties. No shipment total or special-rate eligibility is calculated. The edition publication date is not a line-level effective date.

Official schedule and source documentation

Official entries matching 850490

8504.90.20.00

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

Printed circuit assemblies

Source units: No.

Column 1 — General: Free
Column 1 — Special (eligibility required): No amount printed on this row; not a confirmed zero.
Column 2: 35%

Official source for this code

8504.90.41.00

Other

Source units: No.

Column 1 — General: Free
Column 1 — Special (eligibility required): No amount printed on this row; not a confirmed zero.
Column 2: 35%

Official source for this code

8504.90.65.00

Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof: › Parts: › Other: › Printed circuit assemblies:

Of the goods of subheading 8504.40 or 8504.50 for telecommunication apparatus

Source units: No.

Column 1 — General: Free
Column 1 — Special (eligibility required): No amount printed on this row; not a confirmed zero.
Column 2: 35%

Official source for this code

8504.90.75.00

Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof: › Parts: › Other: › Printed circuit assemblies:

Other

Source units: No.

Column 1 — General: Free
Column 1 — Special (eligibility required): No amount printed on this row; not a confirmed zero.
Column 2: 35%

Official source for this code

8504.90.96

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

Other

Column 1 — General: Free
Column 1 — Special (eligibility required): No amount printed on this row; not a confirmed zero.
Column 2: 35%

Official source for this code

8504.90.96.10

Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof: › Parts: › Other: › Other › Ferrites:

For transformers

Source units: No.

Column 1 — General: No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required): No amount printed on this row; not a confirmed zero.
Column 2: No amount printed on this row; not a confirmed zero.

Parent tariff line 8504.90.96 — read its printed duties and notes

Other

Column 1 — General: Free
Column 1 — Special (eligibility required): No amount printed.
Column 2: 35%

Open parent line in the official schedule

Official source for this code

8504.90.96.30

Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof: › Parts: › Other: › Other › Ferrites:

Other

Source units: No.

Column 1 — General: No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required): No amount printed on this row; not a confirmed zero.
Column 2: No amount printed on this row; not a confirmed zero.

Parent tariff line 8504.90.96 — read its printed duties and notes

Other

Column 1 — General: Free
Column 1 — Special (eligibility required): No amount printed.
Column 2: 35%

Open parent line in the official schedule

Official source for this code

8504.90.96.34

Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof: › Parts: › Other: › Other › Other parts: › Of transformers:

Laminations for incorporation into stacked cores

Source units: No., kg

Column 1 — General: No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required): No amount printed on this row; not a confirmed zero.
Column 2: No amount printed on this row; not a confirmed zero.

Parent tariff line 8504.90.96 — read its printed duties and notes

Other

Column 1 — General: Free
Column 1 — Special (eligibility required): No amount printed.
Column 2: 35%

Open parent line in the official schedule

Official source for this code

8504.90.96.38

Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof: › Parts: › Other: › Other › Other parts: › Of transformers:

Stacked cores for incorporation into transformers

Source units: No., kg

Column 1 — General: No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required): No amount printed on this row; not a confirmed zero.
Column 2: No amount printed on this row; not a confirmed zero.

Parent tariff line 8504.90.96 — read its printed duties and notes

Other

Column 1 — General: Free
Column 1 — Special (eligibility required): No amount printed.
Column 2: 35%

Open parent line in the official schedule

Official source for this code

8504.90.96.42

Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof: › Parts: › Other: › Other › Other parts: › Of transformers:

Wound cores for incorporation into transformers

Source units: No., kg

Column 1 — General: No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required): No amount printed on this row; not a confirmed zero.
Column 2: No amount printed on this row; not a confirmed zero.

Parent tariff line 8504.90.96 — read its printed duties and notes

Other

Column 1 — General: Free
Column 1 — Special (eligibility required): No amount printed.
Column 2: 35%

Open parent line in the official schedule

Official source for this code

8504.90.96.46

Electrical transformers, static converters (for example, rectifiers) and inductors; parts thereof: › Parts: › Other: › Other › Other parts: › Of transformers:

Other

Source units: No., kg

Column 1 — General: No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required): No amount printed on this row; not a confirmed zero.
Column 2: No amount printed on this row; not a confirmed zero.

Parent tariff line 8504.90.96 — read its printed duties and notes

Other

Column 1 — General: Free
Column 1 — Special (eligibility required): No amount printed.
Column 2: 35%

Open parent line in the official schedule

Official source for this code

8504.90.96.50

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

Of static converters

Source units: No.

Column 1 — General: No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required): No amount printed on this row; not a confirmed zero.
Column 2: No amount printed on this row; not a confirmed zero.

Parent tariff line 8504.90.96 — read its printed duties and notes

Other

Column 1 — General: Free
Column 1 — Special (eligibility required): No amount printed.
Column 2: 35%

Open parent line in the official schedule

Official source for this code

8504.90.96.90

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

Other

Source units: No.

Column 1 — General: No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required): No amount printed on this row; not a confirmed zero.
Column 2: No amount printed on this row; not a confirmed zero.

Parent tariff line 8504.90.96 — read its printed duties and notes

Other

Column 1 — General: Free
Column 1 — Special (eligibility required): No amount printed.
Column 2: 35%

Open parent line in the official schedule

Official source for this code

WITS 2023 historical MFN average

Reported average: 0%.

Source year: 2023. Classification: HS 2022 (H6). Checked 2026-09-14.

National lines included: 5 of 5. Excluded from the average: 0.

Reported ad-valorem range: 0%–0%.

Reported historical ad-valorem MFN simple average for 2023, not a national tariff schedule. No preferential rates, additional duties, VAT, excise or import permissions are determined.

Not a current 2026 national duty. The HS6 average does not determine the duty of a particular national subdivision, origin or shipment.

WITS observation for this code and year

UN Comtrade H6 descriptions (HS 2022)

WITS API definitions: reported averages and excluded national lines

Direct HS code answer for United States

United States HS Code 850490: 0.00% (2023 MFN average)

The source reports an indicative HS6 MFN average of 0.00% (2023 MFN average) for Electrical transformers, static converters and inductors; parts thereof.Source status: not assessed. Verify the exact national tariff line, origin treatment, taxes, restrictions, and current customs guidance before using this information in a declaration.

Browse chapter 85 Search parent HS 850490 Request import report

Customs tariff summary

Country: United States
HS / tariff code: 850490
Description: Electrical transformers, static converters and inductors; parts thereof
Chapter: 85 —
Heading: 8504
Subheading: 850490
Indicative MFN HS6 average: 0.00% (2023 MFN average)
VAT / tax: Check local VAT and excise rules for the import destination.
Unit / basis: Not listed in this tariff line
Source / vintage: WITS / UNCTAD TRAINS — 2023 MFN HS6 reference

Historical MFN average

0.00% (2023 MFN average)

Import permission

not assessed

Import planning

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Details

HS Code: 850490
Chapter: 85 —
Heading: 8504
Subheading: 850490

Compare HS code 850490 across GCC countries

Each destination shows its own source label. Oman uses its national schedule; Qatar and UAE entries may cite their separately published references and unresolved exceptions. Other entries retain the historical GCC reference. National codes, duty notes, restrictions and tax treatment can differ; verify with the destination customs authority.

Saudi ArabiaSearch parent HS 850490 United Arab EmiratesSearch parent HS 850490 OmanSearch parent HS 850490 QatarSearch parent HS 850490 KuwaitSearch parent HS 850490 BahrainSearch parent HS 850490

Related HS Codes (Heading 8504)

HS Code	Description	Duty
850410	Discharge lamps or tubes; ballasts therefor	3.00% (2023 MFN average)WITS 2023 historical MFN average
850421	Electrical transformers; liquid dielectric, having a power handling capacity not exceeding 650kVA	0.00% (2023 MFN average)WITS 2023 historical MFN average
850422	Electrical transformers; liquid dielectric, having a power handling capacity exceeding 650kVA but not exceeding 10,000kVA	0.00% (2023 MFN average)WITS 2023 historical MFN average
850423	Electrical transformers; liquid dielectric, having a power handling capacity exceeding 10,000kVA	1.60% (2023 MFN average)WITS 2023 historical MFN average
850431	Electrical transformers; n.e.c. in item no. 8504.2, having a power handling capacity not exceeding 1kVA	2.73% (2023 MFN average)WITS 2023 historical MFN average
850432	Transformers; n.e.c. in item no. 8504.2, having a power handling capacity exceeding 1kVA but not exceeding 16kVA	2.40% (2023 MFN average)WITS 2023 historical MFN average
850433	Transformers; n.e.c. in item no. 8504.2, having a power handling capacity exceeding 16kVA but not exceeding 500kVA	1.60% (2023 MFN average)WITS 2023 historical MFN average
850434	Transformers; n.e.c. in item no. 8504.2, having a power handling capacity exceeding 500kVA	1.60% (2023 MFN average)WITS 2023 historical MFN average
850440	Electrical static converters	0.00% (2023 MFN average)WITS 2023 historical MFN average
850450	Electrical inductors; n.e.c. in heading no. 8504	0.00% (2023 MFN average)WITS 2023 historical MFN average

Data source: WITS/UNCTAD TRAINS (MFN 2022). Values are indicative HS6 MFN averages, not shipment-specific applied rates. Import permission and restrictions are not assessed. Historical reference rates exclude VAT, excise and other national measures. Separate national entries preserve the columns printed by their source; these are not a complete shipment assessment. Full disclaimer.