Bimetal Lugs

A bimetal lug is a cable lug that combines, in a single piece, the aluminum barrel into which an aluminum conductor is crimped with a copper connection surface. It is used to connect power cables with aluminum conductors to a copper busbar or to a switch, transformer or panel terminal, preventing the galvanic corrosion and the rise in contact resistance caused by direct contact between aluminum and copper. In this category, Gwest SKP-BM Al-Cu and SKP-CAL series and Isıso DTL2 series bimetal lugs are available in cross-sections such as 16 mm², 35 mm², 120 mm², 185 mm² and 240 mm², with M8, M10, M12 and M16 bolt holes. Choose the barrel size according to the cross-section of the aluminum conductor, the hole diameter according to the bolt to be connected, and the width of the connection surface according to the area on the terminal or busbar. The crimping die and the number of crimps vary by manufacturer; rely on the manufacturer's data when crimping. A copper cable lug does not replace a bimetal lug on a cable with an aluminum conductor: with an aluminum conductor crimped into a copper barrel, the contact deteriorates over time.

Products

How to choose Bimetal Lugs

A bimetal lug is a cable lug that combines, in a single piece, the aluminum barrel into which an aluminum conductor is crimped with a copper connection surface. It is used to connect power cables with aluminum conductors to a copper busbar or to a switch, transformer or panel terminal, preventing the galvanic corrosion and the rise in contact resistance caused by direct contact between aluminum and copper.

  • Clarify whether the task is connection, cable routing, enclosure distribution or termination.
  • Match dimensions, thread standard, conductor cross-section and IP rating with the cable and panel.
  • Choose housing material and pack quantity according to the mounting environment.

Frequently asked questions

What is Bimetal Lugs and where is it used?

A bimetal lug is a cable lug that combines, in a single piece, the aluminum barrel into which an aluminum conductor is crimped with a copper connection surface. It is used to connect power cables with aluminum conductors to a copper busbar or to a switch, transformer or panel terminal, preventing the galvanic corrosion and the rise in contact resistance caused by direct contact between aluminum and copper.

What should I compare when choosing Bimetal Lugs?

Choose the barrel size according to the cross-section of the aluminum conductor, the hole diameter according to the bolt to be connected, and the width of the connection surface according to the area on the terminal or busbar.

Where can I find technical details for Bimetal Lugs products?

A copper cable lug does not replace a bimetal lug on a cable with an aluminum conductor: with an aluminum conductor crimped into a copper barrel, the contact deteriorates over time.

Bimetal Lugs Selection Guide: Technical Criteria and Engineering Practice