L.T. Bus Duct / Sandwich Bus Duct
Traditional cable runs become impractical at high current capacities – bulky, lossy, and harder to maintain. The L.T. Bus Duct (Sandwich Bus Duct) solves this by transferring power from transformers or generators to distribution panels through a compact, low-impedance enclosed conductor system, built for facilities where high-capacity power distribution is non-negotiable.
Built to Perform
Conductors
copper or aluminium conductors carrying electrical current
Insulating layers
epoxy resin-impregnated paper or dielectric materials separating conductors to prevent short circuits
Protective housing
metal enclosure safeguarding against environmental factors
Support and connection system
engineered for straightforward installation and maintenance
Where It Works
Industrial plants, refineries, and manufacturing facilities
efficient, flexible power distribution
Large commercial buildings
shopping malls and office complexes distributing power across sections
Power plants
reliable power transfer between facility sections
By the Numbers
- Voltage rating : Typically 415V or 800V for low-voltage applications
- Current rating :From hundreds to several thousand amperes, depending on design and application
The Difference
Design flexibility
- easily adapted to layout or load changes
Low impedance
- minimises energy losses for efficient power transmission
Compact footprint
- saves valuable space compared to traditional cable systems
Easier installation and maintenance
- modular design simplifies both
What is an L.T. Bus Duct?
An enclosed conductor system that transfers electrical power from transformers or generators to distribution panels and equipment.
Why use a Sandwich Bus Duct instead of cables?
Higher current capacity, compact installation, better heat dissipation, and easier maintenance compared to traditional cable systems.
Can it be customised?
Industrial plants, commercial buildings, power plants, and data centers requiring high-capacity power distribution.
Connect with our experts to discuss your requirements and find the right electrical panel solution for your application. We’re here to provide reliable guidance, custom solutions, and timely support.