Product engineering

Custom copper and aluminum busbars

We help design and develop custom copper busbars, aluminum busbars, and copper-aluminum connections for battery packs, BBU systems, server power, and rack distribution.

Need a custom copper busbar?

Send your drawing and tell us the current, available space, terminal connections, and insulation requirements. If you need a second source or want to change an existing design, include the current part and the problem you want to solve.

Copper, aluminum, or a copper-aluminum connection?

What we need to know about the connection
Copper busbarSpecify the material grade, section, terminal geometry, joining method, surface-finish requirement, and allowable temperature rise.
Aluminum busbarIdentify the alloy, available section, installation constraints, mating materials, and joining or fastening requirements.
Copper–aluminum interfaceMaterials on each side, joint design, insulation, and test requirements for the operating environment.
Rigid or flexible linkDefine assembly variation, movement, vibration conditions, and routing space before choosing the structure.

Review a flexible busbar when the interface requires movement.

What to send with a busbar RFQ

Custom busbar enquiry checklist
Drawing & revision2D drawing, available 3D model, terminal locations, hole or weld areas, datums, and critical dimensions.
Electrical dutyContinuous and peak current, duration or duty cycle, voltage, ambient conditions, cooling, and allowable temperature rise.
AssemblyMating parts, fastening or welding process, access for assembly, and expected installation variation.
Finish & insulationRequired finish, exposed contact areas, insulation coverage, clearance constraints, and applicable customer specifications.
Quantity & stageSample quantity, pilot-build quantity, estimated recurring demand, target date, and required documents.
AcceptanceRequired dimensional, connection-resistance, thermal, insulation, and assembly checks; identify the method and acceptance limits.

Design, samples, and production support

We can check your drawing for manufacturability, compare design options, and help develop samples. Before making samples, we agree the design, materials, tests, and acceptance limits with you. Ampnera supports NPI and production introduction, with manufacturing and shipment arranged through qualified manufacturing partners.

Common questions

Can you assess an existing copper busbar for a second source?

Yes. Send the current drawing, material and finish requirements, any known issues, and the tests used to approve the part. We can use these to plan a comparable sample.

Can I get a current rating from thickness alone?

Thickness is only one factor. We also need the current and duration, conductor shape, terminal and joint design, cooling, ambient temperature, and allowable temperature rise.

Is there a fixed price, MOQ, or delivery time?

Price, minimum order quantity, and delivery time depend on the part and the work required. Send your drawing, sample and production quantities, and target date so we can discuss the options.

Engineering guides for your project