Plating and final dimensions
State whether dimensions and fits apply to the copper substrate or the finished plated component. Identify critical contact areas, masking needs and coating coverage on cut edges and holes.
Bare & tin-plated copper busbars
Copper busbars in bare and tin-plated finishes for conductive links, switchgear and equipment connections. Define the cross section, edge profile, material condition and finish around your assembly requirements.
Bare copper, tin-plated finish & edge profiles
Select a thumbnail to enlarge all six photos, including bare and tin-plated bars, rounded edges and bundled stock.
01 / SIZES & SELECTION
Choose the section, edges and working length.
These common flat-bar examples help structure an inquiry. State dimensions as thickness × width, then the length. A section size alone does not establish the current rating of an assembly.
The dimensions below are practical sourcing examples, not a confirmed stock list or manufacturing limit. Supply combinations and tolerances are confirmed for the selected grade, temper and order.
| Form / dimension | Common inquiry examples | Selection notes |
|---|---|---|
| Flat bar · thickness × width | 3 × 20, 3 × 25, 3 × 30 mm | Smaller conductive links and fabricated blanks. Provide the required quantity, finished geometry and connection layout. |
| Flat bar · thickness × width | 5 × 20, 5 × 30, 5 × 40, 5 × 50 mm | Inquiries for equipment links and distribution parts; agree the material condition, contact faces and processing allowance. |
| Flat bar · thickness × width | 8 × 40, 8 × 50, 8 × 60, 8 × 80 mm | Define edge profile, straightness and hole or bend drawings. Suitability is assessed within the complete electrical design. |
| Flat bar · thickness × width | 10 × 50, 10 × 60, 10 × 80, 10 × 100 mm | Larger-section sourcing examples. Specify finished tolerances, handling limits and whether dimensions apply before or after plating. |
| Corner and edge geometry | Rounded corner / rounded edge, radius by drawing | Specify the radius or profile rather than relying on a photo. Edge geometry affects fit, forming and the required surface condition. |
| Length, holes and bends | 3,000 mm inquiry reference; cut lengths and geometry by drawing | Include hole diameters, centres, slots, bend angles and radii, drawing revision and pieces per item. |
Current rating belongs to the assembly
Operating current depends on thermal conditions, bar arrangement, joints, enclosure and design limits. Supply the drawing and requirements; the size table is not an ampacity chart or an assembly certification.
Define the geometry your assembly needs
- Agree thickness, width, length, straightness, edge radius and any tighter finished-part tolerances against the selected standard or drawing.
- Identify hole position, slot size, bend radius, end finish, burr limits and contact-face flatness where applicable.
- For tinned orders, agree coating method and thickness, coverage, appearance and the required inspection evidence before production.
02 / MATERIAL & TEMPER01 02 03
Choose the grade for the job.
C11000 / Cu-ETP
A common material request for conductive busbar stock. Specify the governing standard, conductivity evidence, temper and mechanical requirements for the intended component.
C10200 · oxygen-free copper
An option to request when the component specification or joining process requires oxygen-free material. Confirm the exact designation and material condition before substitution.
Temper and product standard
Match harder or softer material conditions to rigidity, bending and processing needs. State ASTM B187/B187M or the relevant product standard and edition. For T2 or other drawing designations, include the governing material standard.
From stock bar to electrical connection.
Switchgear & distribution equipment
Flat copper bars can be used as feedstock for main conductors and links. Specify the mounting layout, holes, bends and contact finish for the equipment design.
Transformer & equipment terminals
Connection bars and terminal links require defined contact areas and fastening geometry. Include the mating material, surface requirement and dimensional drawing.
Energy storage & power electronics
Rigid connection-bar inquiries may involve compact layouts and controlled interfaces. Provide the component drawing and insulation / clearance requirements; a plated surface does not define the system voltage rating.
Earthing & bonding connections
Copper bar can be specified for bonding or earthing components. Define section, hole pattern, mounting, finish and the applicable project requirements for the installation.
04 / PROCESSING & FINISH01 02 03 04
Define the delivery condition.
Straight lengths & cut blanks
Provide the cut list, quantities and length tolerance. Identify stock blanks versus finished dimensions, including end squareness, burr removal and any machining allowance.
Hole, slot & bend requests
Send a dimensioned drawing with hole centres, slots, bend radii and datums. Requested fabrication is reviewed before it is included in the quotation.
Tin-plating requirements
Specify full or selected-area plating, required thickness and measurement locations, masking and any underlayer requirement. Agree the processing sequence for cutting, drilling, bending and plating.
Surface protection & identification
Protect contact faces from scratches and contamination. State identification and traceability needs, plus any approved marking locations away from functional surfaces.
Material, dimensions & finish checks
- Agree chemistry, material condition, conductivity evidence and dimensional inspection with batch identification.
- For tin-plated bars, request the agreed coating-thickness, coverage and adhesion evidence with defined methods and acceptance criteria.
- List material reports, conformity documents and any third-party or environmental-compliance evidence required by the order; availability is confirmed.
Packing & delivery preparation
- Discuss interleaving, edge guards, supported bundles and cases; keep contact faces and plated surfaces separated from abrasive straps.
- Provide the destination, maximum package weight, unloading method and applicable wood-packaging requirements.
- Store dry, supported and clean; preserve identification and use handling that protects the specified finish.
TELL US WHAT YOU NEED
Bare or tinned? Bring the drawing into the conversation.
Send the section, length, preferred finish and quantity. For plated or fabricated parts, add the drawing and coating requirements you already know; remaining details can be clarified in the quotation.
Request a busbar quotation- 01Thickness × width × length and unit
- 02Bare or tin-plated finish and coating requirements
- 03Grade / temper / standard and quantity
- 04Hole pattern, edge profile and bend drawing
- 05Destination, packing and inspection documents
Copper busbar buying questions
Can you supply both bare and tin-plated copper busbars?+
Yes. Specify the required finish with your dimensions and quantity. For tin plating, include coating thickness, coverage and any inspection requirements, or ask to clarify them during quotation.
Does tin plating automatically increase the current rating?+
No universal increase should be assumed. Finish selection must suit the connection and environment; current capability is assessed for the complete electrical assembly and its thermal conditions.
What should a drawing for a plated part include?+
Include the finished dimensions, datums, holes, bends, contact faces and masking requirements. State whether machining and dimensional acceptance occur before or after plating, and how the coating is inspected.
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