S-Line Busbar Trunking System

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L&T Electrical & Automation (E&A) is the leading supplier of the S-Line Busbar Trunking System in over 30 countries. No matter what size of power distribution system you are setting up - be it a large Metro line or industrial complex - our Busbar Trucking product portfolio can meet every need of your efficient distribution of power using copper or aluminum busbars.

To meet your entire range of power delivery needs, E&A offers bus duct systems from 250A to 6300A, featuring flexible design with Class-F insulation of uniform thickness, well-insulated and a higher joint overlapping ensures Longer life, Higher savings, and enhanced safety.

The Busducts are fully type-tested at various independent laboratories and conform to international standards. This ensures complete reliability of the entire Busduct system.

The compact size and flexible design requires limited space and results in the availability of more usable floor area on every floor, adds a touch of elegance to the ambiance, and reduces on-site installation time.

S-Line Busbar Trunking System


  • Range from 250A to 6300A (Aluminium); 400A to 6300A (Copper)
  • Operational voltage up to 1000V
  • Joint block with maintenance-free Twin-headed shear off Nut
  • Plug-in box with Mechanical interlock & safety features
  • A robust, safe and reliable solution
    • UL certified Class-F insulation
    • Ingress protection up to IP66
    • Certified for Seismic zone-V compliance
    • Fire resistance system