Square Narrow Plate Bi-metal Lug Aluminium and Copper Friction Welding for Wires and Cables Connecting
Copper Material: Provides superior conductivity and durability for reliable connections.
Tin Plated Surface: Ensures corrosion resistance and improves electrical performance.
Compression Ring Design: Easy installation and secure connection for various wire sizes.
Aluminium Option Available: Suitable for different applications requiring lighter weight.
CAU bi‑metal lugs are fabricated with premium‑grade aluminium and copper. The copper‑aluminum joint is formed by reliable friction‑welding process for robust bonding performa
| Model | Ø | d | B | d1 | L1 | L | S |
| DTL-F-10 | 16 | 4.5 | 14 | 8.5 | 42 | 87 | 4.2 |
| DTL-F-16 | 16 | 5.5 | 14 | 8.5 | 42 | 87 | 4.2 |
| DTL-F-25 | 16 | 7 | 14 | 8.5 | 42 | 87 | 4.2 |
| DTL-F-35 | 16 | 8.5 | 14 | 8.5 | 42 | 87 | 4.2 |
| DTL-F-50 | 20 | 9.5 | 17 | 10.5 | 50 | 100 | 5.2 |
| DTL-F-70 | 20 | 11.5 | 17 | 10.5 | 50 | 100 | 5.2 |
| DTL-F-95 | 20 | 13 | 17 | 10.5 | 50 | 100 | 5.2 |
| DTL-F-120 | 25 | 15 | 21 | 13 | 60 | 120 | 6.2 |
| DTL-F-150 | 25 | 16.5 | 21 | 13 | 60 | 120 | 6.2 |
| DTL-F-185 | 32 | 18 | 25 | 13 | 60 | 125 | 7.2 |
| DTL-F-240 | 32 | 19.5 | 25 | 13 | 60 | 125 | 7.2 |
| DTL-F-300 | 34 | 23.5 | 30 | 13 | 65 | 145 | 8 |
| DTL-F-400 | 40 | 26 | 32 | 13 | 70 | 150 | 8 |
| DTL-F-500 | 40 | 29 | 32 | 13 | 70 | 150 | 8 |
FAQs
Q: How does this bi‑metal lug achieve reliable electrical connection?
A: It adopts mature aluminium‑copper friction‑welding process to form high‑strength metallurgical bonding between aluminium and copper. The square narrow‑plate design ensures good contact surface when bolting. It avoids galvanic corrosion at the aluminium‑copper transition position and maintains stable conductive performance under continuous load.
Q: What are the main application scenarios?
A: Mainly used for connection of aluminium cables to copper terminals of transformers, switchgears, distribution cabinets and busbars. Widely applied in power stations, substations, industrial power distribution projects and municipal power‑supply systems.
Q: Where can the bi‑metal lug be installed?
A: Installed by bolt fastening. Crimp the aluminium barrel end onto aluminium cable conductor, then fasten the square narrow plate to copper equipment terminal with matching bolts. Fit for standard on‑site power construction.
Q: What are the advantages of friction‑welded aluminium‑copper bi‑metal lugs?
A: Friction‑weld interface delivers high mechanical strength and low contact resistance. Effectively prevents aluminium‑copper electrochemical corrosion. Square narrow‑plate structure adapts to compact installation space. Good electrical conductivity, stable performance for long‑term service.
Q: Do you support sample orders?
A: Yes, samples are available for technical evaluation before bulk purchase