High-Conductivity Wide Pure Copper Busbars for Switchgear

Short Description:

Product Specifications
Name： Finished Wide Pure Copper Busbar
Standard： ASTM B187 / B152, UNS C11000, RoHS Compliant, REACH Compliant
Material： C11000 (Electrolytic Tough Pitch Copper, ≥99.9% Cu)
Surface： Mill Finish, Optional Pre-Drilled or Edge Chamfered
Width： 50mm – 300mm
Thickness： 5mm – 30mm
Length： 1000mm – 4000mm (custom cut-to-length available)
Product Features: Exceptional electrical conductivity for efficient power distribution · High thermal dissipation in wide flat design · Superior mechanical strength and flexibility · Excellent corrosion resistance and oxidation stability · Precise dimensions with finished edges for easy installation · Low resistance and minimal heat generation · Consistent performance under high loads
Application Field: Medium and low-voltage switchgear cabinets, Power distribution panels and bus duct systems, Industrial control and automation equipment, Data center power rails, Renewable energy switch stations, Transformer and breaker connections, Railway electrification infrastructure, Marine electrical systems, Heavy industrial machinery

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Finished Wide Pure Copper Busbar – Process & Quality Assurance Statement
Our finished wide pure copper busbars are produced to meet the rigorous demands of switchgear applications, providing a flat, wide profile that maximizes current capacity while simplifying assembly in compact cabinet designs.

Key process features

Manufacturing focuses on high-purity copper with careful finishing for immediate use:
●Material Rolling: Certified electrolytic copper is hot rolled into wide slabs, followed by cold reduction to achieve precise thickness and flatness.
●Annealing Control: Intermediate annealing in protective atmosphere ensures optimal grain structure and conductivity without brittleness.
●Precision Cutting: Bars are sheared or sawn to length with accurate, square ends; edges are chamfered to prevent injury and improve fit.
●Hole Processing (Optional): CNC drilling adds customized mounting holes for direct cabinet integration.
●Surface Cleaning: Thorough degreasing removes residues, delivering clean, oxide-free surfaces ready for connections.
●Final Straightening: Roller leveling guarantees exceptional flatness across the wide face.
●Protective Measures: Bars are interleaved and bundled securely to maintain pristine condition during worldwide shipping.

Quality control system

● Complete traceability from copper cathode source to finished wide busbar
● Test reports covering conductivity, dimensions, and flatness supplied with every shipment
● Sample retention ≥3 years for third-party verification (SGS, BV, TÜV, etc.)
● 100% inspection of key attributes:
• Chemical purity and conductivity (>100% IACS typical)
• Dimensional accuracy (laser gauges and flatness tables; typical tolerance ±0.5mm on width/thickness)
• Surface quality (visual checks for defects or scratches)
• Edge finish and straightness (profilometer measurement)
• Mechanical properties (bend and tensile testing on samples)
● Internal standards exceed ASTM B187 requirements. Typical C11000 properties: Excellent current-carrying efficiency, Superior heat dissipation in wide formats, Proven reliability in continuous high-load switchgear operation.
● ISO 9001:2015 certified production ensures every finished wide pure copper busbar offers the consistent conductivity, precision, and durability essential for safe, efficient power management in your switchgear systems.