Cut Sheet

15
Technical Data TD01701001E
Effective March 2017
UL low-voltage busway
Pow-R-Way III
EATON www.eaton.com
Physical data (continued)
Fittings
There is a fitting to meet every application need: flanges, elbows,
offsets, tees, cable tap boxes, weatherheads, transformer
connections, power take-off sections, reducers, adapter cubicles,
expansion joints, and end closures.
These fittings, along with standard and minimum dimensions,
are described on the following pages.
When making field measurements and layouts, it should be
remembered that the dimensions are given from the centerline
of the Pow-R-Bridge.
The relationship of fittings to straight lengths (forward, rearward,
upward, and downward) is illustrated in Figure 15.
All straight lengths and fittings are marked with a “T” label and
an “F” label. The “T” and “F” locations will also be noted on the
construction, or the as-built, Eaton drawings furnished. When
installing the busway, the “T” and “F” markings of each
section must match. Failure to do so will result in an improper
installation with the phase bars out of sequence.
Figure 15. Typical busway components
Figure 16. “T” and “F” orientation for fittings
R
ea
rw
a
r
d
U
p
war
d
F
o
rw
a
r
d
D
o
wnw
a
r
d
90º Phase
Transposition
Upward/Downward
Corner Joint
Forward/Rearward
Corner Joint
Forward/
Rearward
Tee
Center Cable
Tap Box
Weatherhead
Expansion
Joint
180º Phase
Transposition
Transformer
Throat
Forward/
Rearward Elbow
Protected
Reducer
Floor Flange
Plug-in
Bus
Bolt-on
Unit
End Closer
In-Line
Power
Take-Off
Built-in
Power
Take-Off
Plug-in
Unit
Wall
Flange
Offset
Upward/
Downward
Tee
Switchboard
Switchboard
Transformer
End Cable Tap Box
Outdoor
Indoor