Bi-metallic Lugs

Bimetallic lugs, also known as bi-metal lugs or bimetal lugs, are electrical connectors designed for joining two conductors of different metals. These lugs are composed of two layers or materials, typically aluminum and copper, to leverage the advantages of both metals. The construction of bimetallic lugs addresses the challenges associated with connecting dissimilar metals directly, such as aluminum and copper, which have different electrical and thermal properties.

Bi-metallic Lugs

Key Features:

Materials:
  • Aluminum: Aluminum is lightweight and cost-effective but may have different thermal expansion and conductivity properties than copper.

  • Copper: Copper has excellent electrical conductivity but is heavier and more expensive than aluminum.

Construction:

Bimetallic lugs typically consist of an aluminum portion designed to connect with an aluminum conductor and a copper portion for connecting to a copper conductor. The two metals are securely bonded or mechanically attached to ensure a reliable electrical connection.

Applications:

  • Compatibility: Bimetallic lugs enable the connection of aluminum conductors to copper conductors, providing compatibility between different types of wiring.

  • Reduced Corrosion: The design helps mitigate the risk of galvanic corrosion that can occur when aluminum and copper come into direct contact.

Advantages:

Bimetallic lugs are commonly used in applications where aluminum conductors need to be terminated or connected to copper components, such as in electrical panels, transformers, and distribution systems.

  • Electrical Conductivity: While the overall electrical conductivity of a bimetallic lug is lower than that of pure copper, it is typically sufficient for many applications. The key advantage is in creating a reliable connection between aluminum and copper conductors.

  • Installation: Bimetallic lugs are installed using standard methods for crimping or bolting, similar to other types of electrical connectors.

  • Compliance with Standards: It is important to use bimetallic lugs that comply with relevant industry standards and regulations to ensure safety and performance.

  • Thermal Considerations: Bimetallic lugs are designed to manage the differences in thermal expansion between aluminum and copper, preventing issues such as loosening over time.

When choosing and installing bimetallic lugs, it is crucial to follow the manufacturer's recommendations and guidelines. Proper installation techniques and compliance with relevant standards are essential to ensure the reliability and safety of electrical connections, especially in applications where dissimilar metals are involved.

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Sr. No. Cat No. Wire Size (square mm) Hole Size (mm)
1 XT-BM 1012 10 sqmm 12 mm
2 XT-BM 1612 16 sqmm 12 mm
3 XT-BM 2512 25 sqmm 12 mm
4 XT-BM 3512 35 sqmm 12 mm
5 XT-BM 5012 50 sqmm 12 mm
6 XT-BM 7012 70 sqmm 12 mm
7 XT-BM 9512 95 sqmm 12 mm
8 XT-BM 12012 120 sqmm 12 mm
9 XT-BM 15012 150 sqmm 12 mm
10 XT-BM 18512 185 sqmm 12 mm
11 XT-BM 24012 240 sqmm 12 mm
12 XT-BM 24016 240 sqmm 16 mm
13 XT-BM 30012 300 sqmm 12 mm
14 XT-BM 30016 300 sqmm 16 mm
15 XT-BM 40012 400 sqmm 12 mm
16 XT-BM 40016 400 sqmm 16 mm
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Bi-Metallic Lugs Supplier in Mumbai