Single-deck T40
120/240V single-phase supply

The outlet box takes A and B from the same deck to deliver 240V.
A T40 2-pole tap-off supplies a single-phase load from two hot conductors. The supply determines the line-to-line voltage.
Single-deck T40: The fitting picks up A and B. A 120/240V single-phase supply delivers 240V between them.
Double-deck, three-phase T40: A standard fitting picks up A and B on the lower deck. For A/C or B/C, choose a factory whip to reach upper-deck C (catalogue suffix -WP). On a 208Y/120V supply, each pair delivers 208V single-phase.
Compare the two wiring diagrams ↓A/B pickup shown. A two-pole line-to-line load uses two hots and equipment ground.
Choose an outlet box if the equipment cord reaches the busway, or a PowerDrop to bring the receptacle closer. Each link opens a 20A L6-20R assembly with standard A/B pickup.
| Phase | Single-Phase |
| Voltage | 208V (L–L) / 240V (L–L) |
| Pole Count (Breaker Configuration) | 2 |
| Amperage | 15A / 20A / 30A |
| NEMA | L6-15, L6-20, 6-20R, L6-30 |
208V / 240V 2-pole Track Busway plug-in units connect two hot conductors to supply line-to-line power. The outlet boxes and PowerDrop cords shown above have integral breakers and are available with 15A, 20A, or 30A receptacle and breaker configurations.
Use this family for equipment, tools, lab devices, kitchen equipment, and other higher-load single-phase loads that require 208V or 240V power without a neutral. For 120V line-to-neutral loads, use 1-pole tap-off units. For three-phase equipment, use 3-pole tap-off units.
120/240V single-phase supply

The outlet box takes A and B from the same deck to deliver 240V.
208Y/120V three-phase supply

A 2-pole assembly can take A/B on the lower deck, or A/C or B/C with an upper-deck whip. Each pair serves a 208V single-phase load.
Open the 208V two-pole tap-off detail → Single-phase vs. three-phase Track Busway →
Watch how the installer aligns two busway lengths and joins them overhead. At each joint, the layout determines whether the same circuit continues or a new feed supplies the next section.
Choose the matching T225 2-pole tap-offs below. T40 and T225 tap-offs fit different busway systems and are not interchangeable.