Copper-Aluminum Composite Rigid Busbars

Bimetallic structure: Aluminum core with copper cladding (copper volume ratio ~20%) via metallurgical bonding, offering copper’s conductivity and oxidation resistance combined with aluminum’s low weight and cost.

Key electrical performance: Conductivity 69.5% IACS, current-carrying capacity 85%~86% of equivalent copper busbar; surface tin-plating available for enhanced anti-oxidation.

Lightweight & cost-effective: Density 37%~40% of pure copper, weight reduction ~55% at same volume, material cost savings ~35%, and 2+ times length per unit weight compared to copper.

Reliable workability: High bond strength allows 90° bending, punching, shearing without delamination; stable transition layer minimizes galvanic corrosion.

Temperature: -40℃~+105℃ (long-term), short-term up to 150℃; voltage 1kV~35kV, current 250A~5000A.

Applications:  LV/MV distribution, busway, EV battery busbars, PV inverters, energy storage – ideal replacement for pure copper/aluminum.

Inspect torque and surface oxidation regularly; clean with dry cloth, avoid acids/alkalis.

Designed life ≥25 years.

Free technical support: engineering consultation, drawings...

Custom orders: lead time & quality report provided before shipment

Zhejiang Bridgold Copper Tech Co.,Ltd. is a professional leader China copper braided shunt, copper braided ground strap, copper braided connector, Copper Braided Busbar, rigid copper (aluminum) busbars, extruded copper(aluminum) busbars, copper-aluminum composite rigid busbars manufacturers and suppliers with high quality and low price. Welcome to contact us.