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Rough-in Conduit to the DRd Rack
Line feed wires terminate on the main lugs provided.
The DRd12 rack is shipped from the factory with the main lugs in a top feed orientation. The
lugs can be changed to a bottom feed orientation by removing the lug mounting bolt,
rotating the lug 180°, and re-mounting the lug in the opposite lug mounting PEM. This is
true for all DRd12 rack models.
The DRd6 rack phase lugs are both top and bottom feed by default and don't require any
change, but the neutral and ground lugs will require re-orientation for bottom feed.
Top Feed DRd rack
When utilizing an auxiliary rack with the DRd rack, line feed wires from the auxiliary rack
enter the DRd rack through the top side conduit knockout. For cross-bussed installations
the line feed wires will be fed to the DRd rack through the conduit knockout on the adjoining
side of the auxiliary rack.
Rack Type
Lug Mounting
Bolt Torque
Wire Range
Lug Wire
Tightening
Torque
3
Rough-in Conduit and Wiring
1
2
3
4
5
6
L1
7
8
9
10
11
12
13
14
L2
15
16
17
18
19
20
21
22
L3
23
24
N
DRd12
120 and 230 VAC
6 Ft-lbs
8 Nm
350kcmil -
2-6 AWG
1 AWG
2
2
185mm
-
35mm
-
2
2
50mm
16mm
375 in-lbs
200 in-lbs
42.4 Nm
22.6 Nm
Bottom Feed DRd rack
DRd12
240 and 277 VAC
11 Ft-lbs
15 Nm
250kcmil -
2-6 AWG
1 AWG
2
2
120mm
-
35mm
-
2
2
50mm
16mm
375 in-lbs
275 in-lbs
42.4 Nm
31 Nm
1
2
3
4
5
6
L1
7
8
9
10
11
12
13
14
L2
15
16
17
18
19
20
21
22
L3
23
24
N
DRd6
(all models)
6 Ft-lbs
8 Nm
2/0-3 AWG
4-6 AWG
2
2
70mm
-
25mm
-
2
2
25mm
16mm
50 in-lbs
45 in-lbs
5.65 Nm
5.1 Nm
21
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