ETC Unison DRd Dimming Rack Enclosure - Manual (Page 25)

3
Rough-in Conduit and Wiring 21
Rough-in Conduit to the DRd Enclosure
Line feed wires terminate on the main lugs provided.
The DRd12 enclosure 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 models.
The DRd6 enclosure 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.
When utilizing an auxiliary enclosure with the DRd enclosure, line feed wires from the
auxiliary enclosure enter the DRd enclosure through the top side conduit knockout. For
cross-bussed installations the line feed wires will be fed to the DRd through the conduit
knockout on the adjoining side of the auxiliary enclosure.
Enclosure
Type
DRd12
120 and 230V AC
DRd12
240 and 277V AC
DRd6
(all models)
Lug Mounting
Bolt Torque
6 Ft-lbs 8 Nm 11 Ft-lbs 15 Nm 6 Ft-lbs 8 Nm
Wire Range
350kcmil -
1 AWG
2-6 AWG
250kcmil -
1 AWG
2-6 AWG 2/0-3 AWG 4-6 AWG
185mm 2 -
50mm 2
35mm 2 -
16mm 2
120mm 2 -
50mm 2
35mm 2 -
16mm 2
70mm 2 -
25mm 2
25mm 2 -
16mm 2
Lug Wire
Tightening
Torque
375 in-lbs 200 in-lbs 375 in-lbs 275 in-lbs 50 in-lbs 45 in-lbs
42.4 Nm 22.6 Nm 42.4 Nm 31 Nm 5.65 Nm 5.1 Nm
L1
L2
L3
N
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
L1
L2
L3
N
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Top Feed DRd Bottom Feed DRd