40A Track Busway system
T40 Three-Phase Track Busway Outlet Box
Specifications
| Phase | Three-Phase |
|---|---|
| Voltage | 600V |
| Amperage | 20A |
| Pole Count | 3 |
| NEMA | L15-20, L16-20 |
This T40 three-phase breakered outlet box provides an equipment connection directly at the overhead busway. It suits layouts where the machine’s supply cord reaches the run.
Plan the outlet location around plug access and the space needed to service the equipment. Keep the connection accessible when arranging adjacent machines and overhead services.
Build your tap-off
Choose each option below to confirm your tap-off and price, then review the downloads and specifications for your build.
Catalogue number MD40-4-208-CB20-OB-ST-G
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Documents for your selected tap-off
Product family cut sheets and Revit resources. Check that the document or model covers your selected configuration.
ETL Listed to UL 857 Busway Standards
For 40A Track Busway system models and configurations covered by the listing.
Three-Phase Tap-Off: Busway Conductor Layout
The cross-section shows phases A and B on the lower deck and phase C on the upper deck, reached through the cord and fitter. Neutral is identified as part of the busway layout. Match the 208V or 480V unit and its receptacle to the system voltage; this conductor-layout reference does not replace the selected receptacle’s terminal wiring diagram.

See T40 Three-Phase Track Busway Outlet Box in Action
Part of the 40A Track Busway System
This breakered outlet box provides a receptacle connection at a compatible 40A Track Busway run. Build the supply path with 40A track busway lengths and the appropriate power feed.
Match the selected tap's voltage, phase connection and breaker rating to the supply and equipment. Use the Track Busway system design guide to plan the complete layout.

Planning equipment additions along a busway run
Map current equipment and likely future stations before finalizing tap-off positions. Record which loads will operate together and where machines need service access; an available connection position alone does not establish spare electrical capacity.
Keep a schedule of installed tap-off catalogue numbers and the equipment they serve. When a workstation changes, review its supply and connection needs before reusing an existing assembly.
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