Copper-Aluminum Transition Busbar For Switch cabinet

Width/Thickness: Match the width of the busbar trough and the terminal interface size in the switch cabinet, avoiding interference with other components (such as circuit breakers, relays);

Length: The length of the copper end/aluminum end is customized according to the actual installation distance (conventional copper end 50-150mm, aluminum end 150-300mm), leaving a reserve for thermal expansion and contraction (≥5mm);

Hole Requirements: Customize precisely according to the hole spacing and diameter of the copper busbar/terminal in the switch cabinet (common hole diameters M8, M10, M12), use laser drilling to ensure accuracy (error ≤ ±0.1mm).

Q1: What are the differences between the copper-aluminum adapter and the ordinary copper-aluminum connector?
A: Ordinary connectors are mostly mechanically crimped, which have gaps and are prone to oxidation and heat generation; the copper-aluminum adapter uses metallurgical bonding technology, achieving molecular-level fusion, with low contact resistance and no oxidation risks, and a longer service life.

Q2: How can one determine the quality of the copper-aluminum adapter?
A: 1. Check the welding process: Friction welding / flash welding are superior to brazing;
2.Measure the contact resistance: ≤ 15 μΩ is considered a high-quality product;
3. Inspect the appearance: no cracks, pores, or oxide scale;
4. Request a test report: including indicators such as conductivity, tensile strength, and corrosion resistance.

Q3: How long does the copper-aluminum adapter last?
A: Under normal use conditions, the metallurgical-bonded copper-aluminum adapter has a service life of ≥ 30 years, which is much longer than the mechanical connection connectors (3-5 years).

Q4: Can it be used in outdoor or humid environments?
A: Yes. Choose products with tin-plated / silver-plated surface treatment to enhance corrosion resistance, and combine with protective measures to use them in outdoor and humid environments for a long time.