Sourcing switch contact fingers from China
Disconnect switch contact fingers from China provisionally classified under 8538 90 99 99 carry 0% UK duty. Supplies for workplace use must be safe. Match the contact geometry, material and spring pressure to the intended switch. Cambridge China Bridge sources disconnect switch contact fingers.
Zero duty on contact finger parts
Heading 8538 covers parts suitable for use solely or principally with the apparatus of headings 8535, 8536 or 8537. For loose disconnect switch contact fingers and their mechanical assemblies, the residual other-parts line 8538 90 99 99 is the starting point for classification. The table shows supply variants using that same line, subject to confirmation.
Read from the UK Trade Tariff on 1 October 2026, the supplied heading snapshot shows 0% duty for goods from China throughout. The contact-finger candidate line records no anti-dumping or countervailing measure, suspension or attached import control. Zero duty does not establish suitability for use.
Confirm the commodity code using the drawing, assembly contents and intended switch. Describe the goods as replacement parts rather than complete switches. For related parts within the wider heading, see replacement contactor contact kits.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Disconnect switch contact fingers, supplied individually | 8538 90 99 99 | 0% | None |
Specify the contact interface and spring pressure
Provide the switch maker, model, part reference and a dimensioned drawing. Specify finger profile, mating blade dimensions, engagement depth, mounting positions and the contents of each assembly. Agree the base metal, temper, contact finish, plating thickness and spring material rather than accepting appearance as evidence of equivalence.
Agree contact force at the working position, insertion and withdrawal behaviour, contact resistance and temperature-rise testing in a representative assembly. Ask for evidence matching the proposed material and geometry. HSE states that suppliers must supply safe work equipment. Use the switch manufacturer's technical review to assess the proposed replacement before ordering.
Worked duty example
Illustrative example, not a quote: 400 replacement disconnect switch contact fingers, illustrative order under 8538 90 99 99, invoiced at £5,000 free on board, with £600 of freight and insurance to the UK. The customs value is £5,600. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £5,600, so it is £1,120. 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
Fit: compare profiles, mounting positions and engagement against the drawing; trial-fit samples to the intended mating contact.
Material and finish: check material records, plating measurements, burrs, cracks and exposed base metal against the agreed specification.
Pressure and contact: measure force at the agreed working position and contact resistance in the agreed fixture; examine contact witness marks after operation.
Arrival and packing: check for bent fingers, displaced springs, corrosion and mixed variants; reconcile batch identification with inspection records. Agree these checks in the inspection brief.
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What goes wrong
A finger can fit the mounting holes yet engage the blade unevenly. Wrong curvature or spring pressure can produce poor contact, heating or excessive operating force. Thin or uneven plating can expose the base metal at the working surface. These are reasons to test the assembled contact interface rather than approve a photograph.
Transport damage can alter the finger gap or dislodge springs. Specify packing that supports the assembly without loading the contact surfaces. Keep suspect batches separate and ask the switch manufacturer to review any proposed substitution before fitting.
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 disconnect switch contact fingers from China?
The supplied tariff snapshot gives 0% for 8538 90 99 99, with no recorded anti-dumping or countervailing measure. Confirm that the supplied contact fingers belong in this residual-parts line.
Can I order contact fingers from a sample alone?
Use the sample alongside a drawing and material specification. Agree the working contact force, mating dimensions and electrical checks; appearance alone cannot establish interchangeability.
Does a CE or UKCA mark prove replacement fingers will fit?
A mark does not establish the mating geometry or spring pressure. Ask the switch manufacturer to review compatibility and have the applicable product rules assessed for the actual supply.
What should I check when contact fingers arrive?
Check finger gap, spring position, plating damage, corrosion and batch identity. Trial-fit samples and compare contact force and resistance with the agreed acceptance criteria before release.