Cut Sheet

36
Technical Data TD01701001E
Effective March 2017
UL low-voltage busway
Pow-R-Way III
EATON www.eaton.com
Physical data (continued)
Wall/floor flanges (Figure 50)
Wall and floor flanges are used to fit around the busway and close
off the opening made to allow the bus run to pass through a floor or
wall. Wall and floor flanges are for cosmetic purposes only and do
not provide any type of vapor or fire barrier.
Roof flange (Figure 51)
A roof flange should always be used when outdoor busway
penetrates a roof.
End closures (Figure 52)
End closures terminate a bus run and can be used to close either
the right or left end (see Figure 2 on page 2 for wiring conductor
configurations).
Table 49. End closures
UL 857 ampere rating Dimensions in Inches (mm)
Cu Al A
225 225 5.13 (130.3)
400 400 5.13 (130.3)
600 600 5.13 (130.3)
800 — 5.13 (130.3)
1000 — 5.75 (146.1)
1200 800 6.25 (158.8)
1350 1000 6.75 (171.5)
1600 1200 7.77 (197.4)
2000 1350 9.02 (229.1)
— 1600 9.78 (248.4)
2500 2000 11.55 (293.4)
3200 — 16.52 (419.6)
4000 2500 19.02 (482.9)
— 3200 20.54 (521.7)
5000 4000 24.08 (611.6)
Table 50. End closure dimensions
Description
Dimensions in inches (mm)
B
3WH, 3WG, 3WHG, 3WI, 4WH, 4WG, 4WHG, 4WI 5.00 (127.0)
4WNH, 4WNG, 4WNI, 4WNHG 5.50 (139.7)
ote:N End closure extends 0.44 inches (11.2 m) rating beyond the centerline
of the removed Pow-R-Bridge.
Busway
Width
Busway
Height
Wall
Wall/Floor
Flange
2.00
(50.8)
2.00
(50.8)
Figure 50. Wall/floor flange
Figure 51. Roof flange
Figure 52. End closure with Pow-R-Bridge removed
Bell
Flange
Roof Flange
Roof
Maximum Roof Slope
with Standard Flange is
2.00 (50.8) per ft
(304.8 mm)
2.50
(63.5)
(All 4 Sides)
of Joint
C
L
10.25 (minimum)
(260.3)
7. 00
(177.8)
2.00 (Rec.)
(50.8)
C
L
6.25 (158.8)
Indoor
7.38 (187.5)
Outdoor
A
B
.44 (11.2)
C
L