Sourcing ceramic terminal bodies from China
Ceramic terminal block insulating bodies from China carry 0% UK duty, with no anti-dumping duty listed. Heading 8547 covers the insulating body; assembled blocks with conducting terminals need a different classification. Specify ceramic grade, fired dimensions and assembly fit. Cambridge China Bridge sources ceramic terminal block insulating bodies.
0% duty on ceramic insulating bodies
Read from the UK Trade Tariff on 30 September 2026, ceramic insulating fittings under 8547 10 00 00 carried 0% duty for goods from China. The supplied tariff record lists no anti-dumping or countervailing duty, suspension or attached import control for this line.
Heading 8547 covers insulating fittings for electrical machines, appliances or equipment, wholly of insulating material apart from minor metal components incorporated during moulding solely for assembly. This guide concerns ceramic terminal block bodies supplied without conducting terminals. The table shows product variants sharing the same ceramic commodity line.
An assembled block with conducting terminals is classified as a connector rather than a bare insulating fitting. Confirm the commodity code using the drawing and supplied condition. See insulating fittings for the wider heading and import duty and VAT for tax calculations.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Bare steatite ceramic terminal block bodies | 8547 10 00 00 | 0% | None |
Specify the fired body and terminal fit
Specify steatite or alumina and the exact ceramic grade, glazed or unglazed finish, operating temperature and dielectric performance for the intended assembly. Put terminal pocket dimensions, mounting hole positions, barrier height, wall thickness and tolerances on the finished-part drawing. State clearly whether the order includes assembly inserts, conducting terminals or only the ceramic body.
Approve samples made with the intended tooling and firing process. Check them with your actual terminals, screws and mounting arrangement. Agree electrical and thermal tests with the finished-product designer, including the test conditions and acceptance criteria. Ask for material certificates and restricted-substance information covering the ceramic, glaze and any inserts.
Government guidance excludes component parts sold between businesses from the scope of the electrical equipment hazardous-substance regulations. The finished electrical product must still meet those rules where applicable. Obtain material evidence to support that assessment; testing and certification can help define the checks.
Worked duty example
Illustrative example, not a quote: Illustrative order: 5,000 bare ceramic terminal block insulating bodies; FOB and freight values are illustrative under 8547 10 00 00, invoiced at £15,000 free on board, with £700 of freight and insurance to the UK. The customs value is £15,700. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £15,700, so it is £3,140. With no duty, the only import tax is the VAT, which a VAT-registered importer can usually reclaim. The import duty and VAT guide explains each step.
Inspection checklist
Material: match ceramic grade and glaze identification to the approved sample and batch certificates; check that substance information covers the supplied finish.
Geometry: measure fired dimensions, terminal pockets, mounting holes and insulating barriers against the drawing; trial-fit the actual assembly hardware.
Condition: inspect for firing cracks, chipped barriers, distorted bases, blocked holes and glaze deposits that obstruct terminal seating.
Performance and packing: test bulk samples to the agreed dielectric and thermal criteria; check protective separation and inspect arrival cartons for broken bodies. Use the quality inspection guide to plan sampling.
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What goes wrong
Firing shrinkage can leave pockets too tight or mounting holes misaligned. Warped bases rock against the mounting surface, glaze obstructs screw recesses, and chips remove material from insulating barriers. A body that resembles the sample can still have a different ceramic grade or finish.
Check the fired part rather than relying on tooling dimensions. Trial-assemble production samples, retain batch records and agree how damaged goods will be separated on arrival. Review packing before shipment: bodies rubbing together can arrive chipped even when factory samples were sound.
Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For components and parts, see sourcing for manufacturers.
Frequently asked questions
What is the UK import duty on ceramic terminal block bodies from China?
The supplied tariff record gives 0% for ceramic insulating fittings under 8547 10 00 00, with no anti-dumping or countervailing duty listed.
Does the same code cover a complete ceramic terminal block?
An assembled block with conducting terminals is classified as a connector. Confirm classification from the supplied assembly and drawing before ordering.
Which ceramic grade should I specify?
Specify the grade approved for your assembly, such as steatite or alumina, together with operating temperature, dielectric performance and fired dimensions. Colour alone does not identify the grade.
What should I check when the bodies arrive?
Check for cracks, chipped barriers and distorted bases. Measure terminal pockets and mounting holes, trial-fit your hardware and compare batch documents with the approved material and finish.