Finding the commodity code for industrial components
Every export and import declaration needs a commodity code. For automation technology the classification is often clear, but not always. This guide explains how the code is structured, where to look it up and which chapters apply to typical components.
Structure: HS, CN, TARIC
The commodity code is layered. The first six digits are the worldwide Harmonized System (HS). The EU adds two digits for the Combined Nomenclature (CN, 8 digits), which is the code used in export declarations. Imports into the EU use further TARIC digits (10 to 11) that carry duty rates and measures. Third countries use their own systems from the seventh digit onwards, for example the HTS in the United States.
Where to look
- EZT-online (German customs): search by code or keyword, with explanatory notes and duty rates.
- TARIC database of the European Commission: same nomenclature, EU view.
- Manufacturer data: many manufacturers state the code on the datasheet, the supplier's declaration or the invoice. A good starting point, but not a substitute for your own check.
- Binding Tariff Information (BTI): for contested cases you can request a binding classification from customs, valid EU-wide for three years.
Typical chapters for automation technology
The following are common classifications. The decisive factor is always the function of the specific product, not its name.
| Component | Usual chapter / heading |
|---|---|
| Contactors, relays, switches, terminals up to 1,000 V | 8536 |
| Controllers, PLCs, control panels, HMIs | 8537 |
| Frequency inverters, power supplies, transformers | 8504 |
| Inductive and capacitive sensors, proximity switches | 8536 or 8543 depending on design |
| Photoelectric sensors, optical sensors, encoders | 9031 (measuring instruments), partly 8541 |
| Temperature, pressure, level measurement | 9025, 9026, 9032 (controllers) |
| Cables, leads, connectors with cable | 8544 |
| Valves, valve terminals | 8481 |
| Pneumatic cylinders, actuators | 8412 |
| Electric motors, gear motors | 8501 |
Common mistakes
- Classifying accessories like the main product. A cable stays 8544 even if it belongs to a sensor.
- Classifying by enclosure. A cabinet with a controller is 8537, an empty cabinet 8538.
- Reusing old codes. The Combined Nomenclature changes every 1 January. Check codes taken from older invoices.
Why the code is shown on our part pages
For export customers the commodity code is part of quote evaluation. That is why we show it together with weight, EAN and country of origin on the part pages of our manufacturer catalog, wherever the manufacturer provides it. For orders we prepare the export declaration in-house; the Hauptzollamt Berlin authorisation for simplified export declarations is documented under Partners & credentials.
As of September 2026. This article is not customs advice; the binding classification is made by the customs authorities.