Bimetallic Lug Connector for Aluminum to Copper Transition
These bimetallic lug connectors are used for transition connections between aluminum or aluminum alloy cables and the copper ends of electrical equipment in medium voltage setups. They feature an oil-blocking structure and are friction welded with a prefilled jointing compound.



Technical Specifications
Overview
High-Performance Bimetallic Transition Lugs
These CXAU bimetallic lugs are engineered for reliable transition connections between aluminum or aluminum alloy cables and copper electrical equipment terminals in medium voltage applications. Featuring a friction-welded construction, they ensure superior mechanical strength and electrical conductivity while preventing galvanic corrosion. The oil-blocking structure and pre-filled jointing compound provide long-term protection and simplified installation for professional electrical systems.
Technical Standards
- Compliance & Standards
- NF C 33-090French NormMedium Voltage
Material Composition
Material Purity
Key Features
Design Features
- Friction welded joint for high-strength Al-Cu transition
- Oil blocking structure to prevent leakage
- Pre-filled with jointing compound for oxidation resistance
- Specifically designed for French standard installations
Dimensional Data
Technical Specifications by Model
| Type | Conductor Size (mm²) | Length L (mm) | Stud Size | Crimping Die |
|---|---|---|---|---|
| C0AU16 | 16 | 70 | M10 | MC OE-OE |
| C0AU25 | 25 | 70 | M10 | MC OE-OE |
| C1AU50 | 50 | 74.5 | M12 | MC 1E-1E |
| C1AU95 | 95 | 74.5 | M12 | MC 1E-1E |
| C2AU120 | 120 | 96 | M12 | MC 2E-2E |
| C4AU240 | 240 | 97.5 | M12 | MC 4E-4E |
| C5AU400 | 400 | 145 | M16 | MC 5E-5E |
| C6AU630 | 630 | 148 | 4xM8 | MC 6E-6E |

Installation
- Installation Method
- The aluminum barrel is crimped using standard crimping tools (refer to specific Indent codes), and the copper palm is bolted to the equipment pad.



