HS code · 6-digit subheading
HS Code 8535.29 – Electrical apparatus; automatic circuit breakers, for a voltage of 72.5kV or more
HS code 8535.29 is the 6-digit subheading for electrical apparatus, automatic circuit breakers, for a voltage of 72.5kV or more. It is used for high-voltage SF6 circuit breakers (>72.5kV), gas-insulated switchgear (GIS) circuit breakers, air-blast circuit breakers (EHV), live tank circuit breakers and dead tank circuit breakers.
What HS 8535.29 covers
This category encompasses extra-high voltage (EHV) and ultra-high voltage (UHV) automatic circuit breakers, specifically for systems operating at 72.5 kilovolts or more. These massive and sophisticated devices are indispensable components of national power grids, large transmission substations, and major renewable energy integration projects. Their primary function is to safely interrupt enormous fault currents at extremely high voltages, thereby ensuring grid stability, preventing widespread outages, and protecting critical infrastructure. Importers are typically national power utilities, large-scale energy project developers, and heavy industry. Exporters are a limited number of highly specialized global manufacturers. Reliability, breaking capacity, and environmental considerations (e.g., SF6 gas management) are paramount in the trade of these high-value, critical components.
- Covers
- High-voltage SF6 circuit breakers (>72.5kV)
- Gas-insulated switchgear (GIS) circuit breakers
- Air-blast circuit breakers (EHV)
- Live tank circuit breakers
- Dead tank circuit breakers
- Ultra-high voltage circuit breakers
- Examples
- ABB HPL series
- Siemens 3AP series
- GE Grid Solutions GL series
- Hitachi EHV circuit breakers
Codes often confused with 8535.29
Common mistake. The primary confusion point is with medium-voltage circuit breakers (853521), making the 72.5kV threshold the absolute determinant for correct classification.
Top exporters and importers of HS code 853529, 2025
In 2025, the largest exporter of HS code 853529 in UN Comtrade data was South Korea, with 33% of world exports; the largest importer in UN Comtrade data was Saudi Arabia, with 22% 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 South Korea $438M 33% of world exports
- 2 China $280M 21% of world exports
- 3 Germany $121M 9.1% of world exports
World total: $1.3B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Saudi Arabia $322M 22% of world imports
- 2 United States $111M 7.6% of world imports
- 3 Canada $74M 5.1% of world imports
World total: $1.4B 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 8535.29
Brazil does not split HS 8535.29: its NCM code is 8535.29.00.
All Brazil NCM codes in heading 85.35 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 8535.29
What is HS code 853529?
HS code 853529 is a 6-digit subheading in the Harmonized System that covers: Electrical apparatus; automatic circuit breakers, for a voltage of 72.5kV or more. This category encompasses extra-high voltage (EHV) and ultra-high voltage (UHV) automatic circuit breakers, specifically for systems operating at 72.5 kilovolts or more. These massive and sophisticated devices are indispensable components of national power grids, large transmission substations, and major renewable energy integration projects. Their primary function is to safely interrupt enormous fault currents at extremely high voltages, thereby ensuring grid stability, preventing widespread outages, and protecting critical infrastructure. Importers are typically national power utilities, large-scale energy project developers, and heavy industry. Exporters are a limited number of highly specialized global manufacturers. Reliability, breaking capacity, and environmental considerations (e.g., SF6 gas management) are paramount in the trade of these high-value, critical components.
What products fall under HS code 853529?
High-voltage SF6 circuit breakers (>72.5kV), gas-insulated switchgear (GIS) circuit breakers, air-blast circuit breakers (EHV), live tank circuit breakers, dead tank circuit breakers, ultra-high voltage circuit breakers
What are common misclassifications for HS code 853529?
The primary confusion point is with medium-voltage circuit breakers (853521), making the 72.5kV threshold the absolute determinant for correct classification.
Which countries are the top exporters of goods under HS code 853529?
In 2025, the top exporters of HS code 853529 in UN Comtrade data were South Korea ($438M, 33% of world exports), China ($280M) and Germany ($121M). World exports came to about $1.3B, 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 853529?
In 2025, the top importers of HS code 853529 in UN Comtrade data were Saudi Arabia ($322M, 22% of world imports), the United States ($111M) and Canada ($74M). World imports came to about $1.4B, 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 853529 structured?
HS code 853529 is a 6-digit subheading under the Harmonized System. The first 2 digits (85) identify the chapter, digits 3-4 (35) identify the heading, and digits 5-6 (29) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 853529?
In Brazil, HS code 853529 is NCM 8535.29.00. The last two digits are 00 because Brazil does not split this HS code further.