Code 8504 31 · Heading 8504

Dry transformers, <= 1 kVA

This covers dry transformers with a power rating of <= 1 kVA. It includes transformers for measuring instruments as well as transformers not for measuring instruments.

For example

A dry transformer rated <= 1 kVA
A dry voltage transformer for measuring instruments, rated <= 1 kVA
A dry transformer for measuring instruments, rated <= 1 kVA, other than a voltage transformer

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See the official tariff text

Official tariff text

Transformers having a power handling capacity <= 1 kVA (excl. liquid dielectric transformers)

The path to this code

Every code is reached through these choices, one level at a time.

Step 4 of 4

Step 1 · Section XVI Machinery and mechanical appliances; electrical equ…
Is the product a machine, apparatus or mechanical tool, or is it electrical equipment, a sound recorder or player, or a television image and sound recorder or player?
✓
Step 2 · Chapter 85 Electrical machinery and equipment and parts thereo… 2 of 2 chapters in section XVI
What is the product: an electrical motor, generator or converter; a transformer or electrical converter; a magnet; a primary cell or battery; an accumulator; a household appliance; a shaver or hair-removal appliance; equipment for an internal-combustion engine, vehicle or bicycle; a portable lamp; an industrial or laboratory heating appliance; soldering or welding equipment; another electrical heating appliance; a telephone or other data-communication device; sound equipment; video equipment or recording media; a display module; a radio, television, radar, navigation or remote-control device; electrical control, switching, lighting, semiconductor, circuit, cable or insulation equipment; another electrical machine or apparatus; or electrical and electronic waste or scrap?
✓
Step 3 · Heading 8504 Electrical transformers, static converters, e.g. re… 4 of 48 headings under chapter 85
What is the item: a reactor for discharge lamps or tubes; a liquid-insulated transformer with a power of <= 650 kVA, > 650 kVA but <= 10.000 kVA, or > 10.000 kVA; a dry transformer with a power of <= 1 kVA, > 1 kVA but <= 16 kVA, > 16 kVA but <= 500 kVA, or > 500 kVA; another transformer with a power of > 1 kVA but <= 16 kVA; a static converter; an induction coil other than one for discharge lamps or tubes; or a part for transformers and induction coils?
✓
Step 4 · Subheading 8504 31 Transformers having a power handling capacity <= 1 … 5 of 11 subheadings under heading 8504
Is it a voltage transformer for measuring instruments, another transformer for measuring instruments, or a transformer not for measuring instruments?

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Classification decides the rate here: from 0.0% to 3.7%.

Export to Norway

What Norwegian customs charges when goods like these are imported into Norway.

85.04.3100

Having a power handling capacity not exceeding 1 kVA

Ordinary duty

Duty free

Goods of EU origin

Duty free You need documentation of EU origin to use this rate.

Norwegian tariff data version 1.5/1.2, last checked Aug. 9, 2026.

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

Export to the United Kingdom

What UK customs charges when goods like these are imported into the UK.

All 9 UK lines under this code

They all have the same duty rates shown here.

Ordinary duty

Duty free

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.

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

UK tariff data version v4.0.1576, last checked Aug. 3, 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).

Check the neighbouring codes

The codes just before and after this one, in case a nearby group fits better.

See all 11 codes at this level

Previous code 8504 23

Liquid dielectric transformers, having a power handling capacity > 10…

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Transformers having a power handling capacity <= 1 kVA (excl. liquid …

Next code 8504 32

Transformers, having a power handling capacity > 1 kVA but <= 16 kVA …

Duty rates shown here are estimates, read from official EU / Danish, Norwegian and UK tariff data for orientation only. Confirm the current rate with SKAT, 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.