Copper busbar

aluminumcopper alloyfor power supplies

Product overview
Profiled copper busbars (custom copper bars) are high-precision conductive components designed for power distribution and electrical equipment. Available in pure copper, aluminum and copper‑aluminum bimetal configurations, they deliver stable electrical performance across industrial environments and support stamping production for complex shapes.

Product details

• Item name: Profiled copper busbar / Custom copper bars
• Materials: Copper, Aluminum, Copper‑Aluminum bimetal
• Manufacturing: Stamping (high‑precision)
• Finish: Multiple insulating/coating options available
• Thickness range: 0.20 mm – 15 mm
• Tolerance: ±0.01 mm
• Packing: PE bag (custom packing available)
• Services: OEM / ODM available; factory pricing

Advantages of copper‑aluminum bimetallic busbars

• Customizable profiles and sizes to suit various applications
• Approximately one‑third the weight of equivalent-volume pure copper, easing handling and transport
• Significant cost savings versus pure copper (up to ~64% in some cases)
• Good formability: supports 90° bending without wrinkling and stamping without cracking
• Electrical conductivity up to ~98% of pure copper for selected bimetal ratios

Applications

• Switchgear and distribution panels
• Electrical control cabinets and motor control systems
• Transformers, reactors and traction devices
• Circuit breakers, vacuum and air switches, relays
• Railway power supply and traction systems
• Motor coils and other power electronics components

Optional surface finish (insulating/coating options)

• PE: Withstand voltage ~2700 V AC; working temperature -40°C to 125°C; flame rating UL224 VW‑1; for solid & flexible busbars (not for special shapes)
• PVC (dipping): Withstand voltage ~3500 V AC; working temperature -40°C to 125°C; flame rating UL94 V‑0; suitable for solid, flexible and special shapes
• Epoxy powder coating: Withstand voltage ~5000 V AC; working temperature -40°C to 150°C; flame rating UL94 V‑0; for solid busbars
• PVC (extruded): Withstand voltage ~3500 V AC; working temperature -40°C to 125°C; flame rating UL94 V‑0; for flexible busbars
• PA12 (extruded): Withstand voltage ~5000 V AC; working temperature -40°C to 150°C; flame rating UL94 V‑0; for solid busbars
• PET: Withstand voltage ~5000 V AC; working temperature -40°C to 125°C; flame rating UL94 V‑0; for solid busbars

Technical specifications

• Product type: Profiled copper busbar / custom stamped copper bars
• Materials supported: Copper, Aluminum, Copper‑Aluminum bimetal
• Typical bimetal example: 20Cu : 80Al (ratio customizable)
• Thickness supported: 0.20 mm – 15 mm
• Tolerance: ±0.01 mm
• Manufacturing: High‑precision stamping
• Electrical conductivity: Up to ~98% of pure copper (bimetal option)
• Mechanical: 90° bending without wrinkling; stamping without cracking
• Common finishes: PE, PVC (dipping/extruded), PA12, PET, Epoxy powder coating
• Packing: PE bag (custom options available)
• Customization: Profiles, lengths and hole patterns customizable; OEM/ODM services