3-Phase / 3-Pole Track Busway Tap-Off Units
3-phase busway plug-in units tap all three phases for 208V and 480V overhead power to equipment, work areas, and outlet points below the run.
In a 3-pole configuration, the tap-off unit engages phases A, B, and C. A neutral conductor may be present in the Track Busway system for 4-wire configurations, but “3-pole” refers to the breaker switching the three phase conductors.
3-Phase Plug-In Power from Overhead Busway
Browse 40A 3-phase / 3-pole Track Busway tap-off units for overhead equipment power. These plug-in units deliver 208Y or 480Y three-phase power to machinery, pumps, conveyors, workstations, and production areas.
Choose outlet boxes when receptacles should stay mounted directly at the busway. Choose PowerDrop cords when connection points need to hang closer to equipment, workstations, or production areas.
Explore other power tap-unit configurations for 40A Track Busway
Use this 3-phase / 3-pole Track Busway power family for equipment that requires three-phase power from the overhead busway. For standard line-to-neutral loads, use the 120V / 1-pole family. For line-to-line single-phase loads, use the 208V / 240V / 2-pole family. Compare the available 40A plug-in power configurations using the links below.
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All 40A Power
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120V Power
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208V Power
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3-Phase Power
Need higher-amperage tap-off units?
For higher-amperage applications, view our T225 / 225A Track Busway tap-off units.
Watch how three-phase Track Busway components connect to the overhead run and support field-repositionable power access. These installation examples help show how 3-pole tap-off units, outlet boxes, and PowerDrop cords can be added or moved as layouts change.
For additional installation scenarios, configuration examples, and system overviews, visit the Track Busway Video Library.
3 Phase Power Outlet and Tap-Off Options
This diagram shows how Track Busway can deliver 208V or 480V three-phase power through plug-in tap-offs, connector-based drop points, and power outlet configurations used for higher-load applications. It helps explain how 3 phase power can be brought from the overhead busway to the point of use below.
A three-phase Track Busway system can support multiple plug-in strategies along the same run. Single-pole units can serve line-to-neutral loads, two-pole units can serve line-to-line loads, and 3 phase busway plug-in units can engage all three phases to support balanced three-phase equipment such as motors and industrial machinery.
This flexibility allows designers and contractors to combine different outlet and tap-off needs along one overhead system while keeping three-phase power accessible where it is needed.
Three Phase
Double-deck Track Busway includes (2) phases on the bottom and (1) on the top. Factory installed track busway fittings tap the (2) lower deck phases, and the third phase on the top deck.
A 3 phase busway plug-in unit is a tap-off assembly that draws power from overhead Track Busway and delivers it to equipment, outlets, or connection points below.
Yes. Track Busway can support 208V and 480V three-phase configurations, depending on system design and the plug-in unit used.
“3 phase plug-in unit” is the broader family description. “3-pole tap-off box” refers more specifically to the internal breaker engaging phases A, B, and C.
Yes. Depending on the configuration, Track Busway can provide 3 phase power outlet access through plug-in units, outlet box style configurations, and other tap-off options.
They are commonly used for motors, conveyors, pumps, machinery, lab equipment, and other higher-load applications that benefit from flexible overhead three-phase power distribution
For the corded drop option, see the dedicated 3 Phase PowerDrop Cord product page. This collection is intended to cover the broader family of 3 phase busway plug-in units.
