Mechanical Bimetal Lug for Aluminum to Copper Connection

This mechanical bimetal lug is designed for connecting aluminum cables to copper busbars or equipment terminals. The lug features a mechanical connection, eliminating the need for crimping tools and providing a reliable transition between aluminum and copper.

JTLL MECHANICAL BIMETAL LUG - Image 1

Technical Specifications

Product Overview

Mechanical Bimetal Lug

The JTLL series mechanical bimetal lug is engineered for the transition connection of aluminum or aluminum alloy cables to copper terminals in low-voltage electrical equipment. Featuring a high-strength aluminum alloy body and friction-welded construction, these lugs ensure stable performance and prevent galvanic corrosion. Designed for ease of use, they eliminate the need for specialized crimping tools, requiring only a standard wrench for installation.

Technical Details

Material Composition
High Strength Aluminum AlloyCopper (Cu≥99.9%)
Compliance Standard
IEC 61238-1: 2003

Key Features

Installation Benefits

  • No crimping tools required; use socket spanner or wrench
  • Torque-controlled shear head bolts prevent conductor damage
  • Prefilled with jointing compound
  • Friction welded for superior connection

Specifications Table

Technical Specifications

TypeConductor Size (mm²)Outer Diameter (mm)BoltsShear Torque (Nm)
JTLL10-3510-351618
JTLL25-5025-5018110
JTLL50-9550-9522122
JTLL120-185120-18530140
JTLL240-300240-30036255

Technical diagram showing mechanical bimetal lug dimensions and specifications
Technical specifications and sizing chart for the JTLL series mechanical bimetal lugs.

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