HS code · 6-digit subheading
HS Code 8504.33 – Transformers; n.e.c. in item no. 8504.2, having a power handling capacity exceeding 16kVA but not exceeding 500kVA
HS code 8504.33 is the 6-digit subheading for transformers, n.e.c. in item no. 8504.2, having a power handling capacity exceeding 16kVA but not exceeding 500kVA. It is used for commercial distribution transformers, industrial dry-type transformers, cast resin transformers, VPI (Vacuum Pressure Impregnated) transformers and data center transformers.
What HS 8504.33 covers
This HS code covers medium-sized dry-type electrical transformers, which are non-liquid dielectric and possess a power handling capacity ranging from 16kVA to 500kVA. These transformers are vital for commercial and industrial power distribution, often found in substations within buildings, data centers, hospitals, and manufacturing plants where safety, environmental concerns, and maintenance are paramount. Their dry insulation makes them ideal for indoor installations or areas sensitive to fire hazards. International trade in these transformers is driven by urban development, industrial expansion, and the modernization of commercial infrastructure. Major importers include countries with significant commercial and industrial construction, such as the United States, Germany, and the UAE. Exporters typically come from nations with strong electrical equipment manufacturing sectors, including China, Mexico, and European industrial leaders. Buyers prioritize efficiency, reliability, low maintenance, and compliance with stringent safety and environmental regulations.
- Covers
- Commercial distribution transformers
- Industrial dry-type transformers
- Cast resin transformers
- VPI (Vacuum Pressure Impregnated) transformers
- Data center transformers
- Hospital isolation transformers
- Renewable energy transformers (e.g., for wind/solar farms)
- Examples
- Siemens dry-type distribution transformers
- ABB cast resin transformers
- Schneider Electric VPI transformers
- Eaton dry-type power transformers
- GE Prolec dry-type transformers
Codes often confused with 8504.33
Common mistake. The primary confusion lies with smaller (8504.32) or larger (8504.34) dry-type transformers, necessitating careful verification of the kVA capacity. Liquid dielectric transformers (8504.2x) are distinct due to their insulation.
Top exporters and importers of HS code 850433, 2025
In 2025, the largest exporter of HS code 850433 in UN Comtrade data was Mexico, with 29% of world exports; the largest importer in UN Comtrade data was the United States, with 35% 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 Mexico $530M 29% of world exports
- 2 United States $212M 12% of world exports
- 3 China $149M 8.2% of world exports
World total: $1.8B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $738M 35% of world imports
- 2 Thailand $147M 7.0% of world imports
- 3 Canada $107M 5.1% of world imports
World total: $2.1B 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 code for 8504.33
Brazil does not split HS 8504.33: its NCM code is 8504.33.00.
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 8504.33
What is HS code 850433?
HS code 850433 is a 6-digit subheading in the Harmonized System that covers: Transformers; n.e.c. in item no. 8504.2, having a power handling capacity exceeding 16kVA but not exceeding 500kVA. This HS code covers medium-sized dry-type electrical transformers, which are non-liquid dielectric and possess a power handling capacity ranging from 16kVA to 500kVA. These transformers are vital for commercial and industrial power distribution, often found in substations within buildings, data centers, hospitals, and manufacturing plants where safety, environmental concerns, and maintenance are paramount. Their dry insulation makes them ideal for indoor installations or areas sensitive to fire hazards. International trade in these transformers is driven by urban development, industrial expansion, and the modernization of commercial infrastructure. Major importers include countries with significant commercial and industrial construction, such as the United States, Germany, and the UAE. Exporters typically come from nations with strong electrical equipment manufacturing sectors, including China, Mexico, and European industrial leaders. Buyers prioritize efficiency, reliability, low maintenance, and compliance with stringent safety and environmental regulations.
What products fall under HS code 850433?
Commercial distribution transformers, Industrial dry-type transformers, Cast resin transformers, VPI (Vacuum Pressure Impregnated) transformers, Data center transformers, Hospital isolation transformers, Renewable energy transformers (e.g., for wind/solar farms)
What are common misclassifications for HS code 850433?
The primary confusion lies with smaller (8504.32) or larger (8504.34) dry-type transformers, necessitating careful verification of the kVA capacity. Liquid dielectric transformers (8504.2x) are distinct due to their insulation.
Which countries are the top exporters of goods under HS code 850433?
In 2025, the top exporters of HS code 850433 in UN Comtrade data were Mexico ($530M, 29% of world exports), the United States ($212M) and China ($149M). World exports came to about $1.8B, 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 850433?
In 2025, the top importers of HS code 850433 in UN Comtrade data were the United States ($738M, 35% of world imports), Thailand ($147M) and Canada ($107M). World imports came to about $2.1B, 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 850433 structured?
HS code 850433 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 (33) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 850433?
In Brazil, HS code 850433 is NCM 8504.33.00. The last two digits are 00 because Brazil does not split this HS code further.