Sandwich Bus Duct
Compact busbar trunking from 400 A to 6300 A for transformer links and building risers.

Need the datasheet?
Ratings and drawings are issued against the specific make and model you need. Ask and we will email the current datasheet.
Request DatasheetOverview
Sandwich construction busbar trunking replaces large parallel cable runs with a compact, low-impedance link that is easier to route, quicker to install and far simpler to tap into later. Epoxy-insulated conductors are clamped face to face, which keeps the voltage drop and the magnetic field low, and plug-in tap-off boxes let floors be fed without cutting the run.
Technical specifications
| Rated current | 400 A – 6300 A |
|---|---|
| Rated voltage | 415 V / 690 V |
| Conductor | Aluminium or copper, epoxy insulated |
| Short-circuit rating | 50 kA – 100 kA |
| Degree of protection | IP55 indoor / IP66 outdoor |
| Standard | IEC 61439-6 |
Specifications are indicative. Final ratings are confirmed against your site conditions and the approved make.
Applications
- Transformer to LT panel links
- Vertical risers in high-rise buildings
- Plant and shop-floor power distribution
- Data centre power distribution
Interested in the Sandwich Bus Duct?
Tell us the rating and quantity you need. We will confirm availability, price and delivery — and quote the installation too if you want it commissioned.
More from Panels & Switchgear
Equipment commonly specified alongside this item.
Supply only, or supply and install?
We deliver material against your BOQ with full test documentation — and can erect, test and commission it under the same contract.



