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Technical Data
Effective: May 1998
Page
31
TD.44A.01.T.E
Cutler-Hammer
Magnum DS
Metal-Enclosed
Low-Voltage Switchgear
Application
Floor Plan/Conduit Area
Table A6 – Dimensions, in Inches (Millimeters)
FC
➀
W
D
➅
A
➃
CC
➁
Recommended
Number of
Power Conduits
(Maximum)
➂
3.5-
Inch
4-Inch
36
(914)
22
(559)
60 (1524)
66 (1676)
72 (1829)
78 (1981)
84 (2134)
90 (2286)
24 (611)
30 (764)
36 (916)
42 (1069)
48 (1221)
54 (1373)
13.3 (338)
19.3 (490)
25.3 (643)
31.3 (795)
37.3 (948)
43.3 (1100)
6
9
12
15
18
21
6
9
12
15
18
21
36
(914)
44
(1118)
60 (1524)
66 (1676)
72 (1829)
78 (1981)
84 (2134)
90 (2286)
13.3 (338)
19.3 (490)
25.3 (643)
31.3 (795)
37.3 (948)
43.3 (1100)
12
18
24
30
36
42
12
18
24
30
36
42
Table A7 – Center of Gravity Location
Center of Gravity
For seismic calculations, the following dimensions should be used to
locate the center of gravity for Indoor Magnum DS Switchgear:
Vertical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 inches (1524 mm)
Left-to-right. . . . . . . . . . . . . . . . . . . . . . . . . . . center of lineup
From the front . . . . . . . . . . . . . . . . . . . . . . . . 26 inches (660 mm)
➀
FC is the recommended front clearance for
breaker removal with top-of-switchgear-
mounted breaker lifter. If a portable breaker
lifter is to be used, allow at least 84 inches
(2134 mm) of aisle space.
➁
When a zero-sequence ground-fault CT is
mounted on line-side or load-side of a breaker,
reduce CC dimension by 10 inches (254 mm).
➂
Stub conduit 2 inches (50 mm) maximum in
power cable area, 1 inch (25 mm) maximum
in control wiring area.
➃
Bolt hole location for mounting the center
floor channel when required. Floor channels
not included.
➄
For available area for bus duct connection
contact Cutler-Hammer.
➅
Hinged rear doors add 1.25 inches (32 mm).
Front
16
(406)
W
FC
➀
21.50
(546)
3.60
(91)
4.63 (118)
3 (76)
4.25
(108)
0.65
(17)
3.50 (89)
3.60 (91)
1.03 (26)
3 (76)
“CC”
3
(76)
1.38
(35)
A
➃
31.18
(792)
3.38
(86)
3 (76)
D
➅
3 (76)
1.50 (38)
Power
Conduit
Area
➂➄
Top
Control
Conduit
Area
Bottom
Control
Conduit
Area
Provisions
for .50
Hardware
16
(406)
3
(76)
1.50 (38)
Drawing 2A97850
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