Sourcing fibre-optic media converters from China
The listed duty rate for fibre-optic media converters from China is 0%, with no variation across the converter types shown. For sale in Great Britain, importers must check the manufacturer's electromagnetic compatibility conformity assessment and provide importer identification. Cambridge China Bridge sources fibre-optic media converters.
Duty on fibre-optic media converters
Heading 8517 covers communications apparatus. The reception, conversion and transmission line, 8517 62 00 00, is the relevant starting point for copper-to-fibre media converters. The table shows product variants sharing that line, rather than separate tariff classifications.
Read from the UK Trade Tariff on 29 September 2026, the supplied snapshot records 0% duty for goods from China under this line, with no anti-dumping or countervailing duty, suspension or attached import control. Import VAT is normally 20%. See UK import duty and VAT.
Confirm classification against the complete device's functions and specification using finding your commodity code. Separate parts and power supplies need their own classification check. For the wider heading, see industrial cellular routers.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Copper-to-fibre media converters with fixed optical ports | 8517 62 00 00 | 0% | None |
Specify the optical link and power arrangement
Specify single-mode or multimode fibre, connector type, optical wavelength, transmit output and receiver sensitivity. For bidirectional models, identify the complementary transmitting and receiving ends. Agree the copper-port speed, negotiation behaviour, duplex operation and link-fault reporting. State whether optical modules are included and name the approved module and switch combinations.
Define the supply voltage, connector polarity, mounting method and intended operating environment. Approve samples using your actual fibre and network equipment. Ask for model-specific electromagnetic compatibility and hazardous-substance evidence, including the supplied power adaptor. In Great Britain, importers must check the manufacturer's conformity assessment and provide importer identification; own-brand electrical equipment brings the manufacturer's hazardous-substance obligations.
Worked duty example
Illustrative example, not a quote: Illustrative order of 2,000 fibre-optic media converters under 8517 62 00 00, invoiced at £40,000 free on board, with £1,000 of freight and insurance to the UK. The customs value is £41,000. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £41,000, so it is £8,200. 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
Optical pairing: check fibre type, connectors and complementary wavelengths against the order; test each approved converter and module combination.
Traffic and recovery: pass traffic in both directions, monitor errors, disconnect the fibre and restore it, then check recovery after a power interruption.
Power and build: check adaptor output and polarity, connector retention, mounting fit, case temperature during operation and protective packing.
Documents and identification: match the device, adaptor and optical module to the approved records. Check importer details and English instructions. Include these checks in your quality inspection.
What goes wrong
A link light can conceal packet loss or an incompatible operating mode. Wrong fibre types, mismatched bidirectional ends and substituted optical modules can prevent a working link. Test traffic with the intended switch and fibre, rather than accepting illuminated indicators as proof.
Other failures include incorrect adaptor polarity, unstable power and overheating inside the intended cabinet. A supplier may also change the board or module without updating the supporting documents. Require written approval before substitutions. UK businesses commercially importing electrical equipment should arrange their waste-electrical producer responsibilities, including annual registration.
Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification.
Frequently asked questions
What is the UK import duty on fibre-optic media converters from China?
The supplied tariff snapshot shows 0% under 8517 62 00 00, with no anti-dumping or countervailing duty on that line. Import VAT is normally 20%.
Will any fibre-optic media converter work with my switch?
Do not assume compatibility. Match fibre type, connectors, optical wavelengths, copper-port behaviour and optical modules, then test samples with your switch and installed fibre.
What compliance documents should I ask the factory for?
Ask for model-specific conformity declarations, electromagnetic compatibility evidence and hazardous-substance records. Match them to the converter and supplied adaptor, rather than accepting a document for a similar model.
How do I check converters when they arrive?
Check optical pairing, run traffic in both directions, monitor errors and test recovery after link and power interruptions. Compare the hardware and included modules with the approved sample.