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Earth Bonding Lug / Connector

An Earth Bonding Lug / Connector is a copper or copper-alloy fitting used to securely connect grounding and bonding conductors to electrical equipment, structures, or grounding systems.



An Earth Bonding Lug / Connector provides a secure, low-resistance electrical connection between grounding conductors and equipment such as switchgear, transformers, cable trays, structural steel, and grounding busbars. These connectors are available in compression, mechanical, bolted, and split-bolt designs to suit various conductor sizes and installation requirements.

They are widely used in electrical installations, substations, industrial plants, telecommunications facilities, and lightning protection systems.

Key Features

  • High-conductivity copper or copper-alloy construction
  • Low-resistance electrical connection
  • Corrosion-resistant finish
  • Easy installation
  • Compatible with stranded and solid conductors
  • Suitable for indoor and outdoor use
  • Long service life

Common Applications

  • Grounding Systems
  • Electrical Panels
  • Switchgear
  • Transformers
  • Cable Trays
  • Structural Steel Bonding
  • Lightning Protection Systems
  • Telecommunication Equipment

Common Types

  • Compression Lug
  • Mechanical Lug
  • Split-Bolt Connector
  • Ring Terminal Lug
  • Ground Rod Clamp
  • Bonding Clamp

Typical Specifications

  • Material: Copper, Tinned Copper, or Copper Alloy
  • Conductor Size: 6–300 mm²
  • Mounting: Bolt-On or Compression
  • Finish: Bare Copper or Tin-Plated
  • Compliance: IEC 61238-1, UL 467 (model dependent)
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Earth Bonding Lug / Connector

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