20
Installation
3
1
4
Figure 3-3. Knock-outs, bottom view
Item
Quantity
Trade Size
Hole Dimension
Circuit(s)
1
2 (Concentric)
1” & 3/4”
1.36“ (34.5 mm) / 1.09” (27.8 mm)
Solar (high voltage)
2
2 (Concentric)
1-1/4“ & 1“
1.72” (43.7 mm) / 1.36“ (34.5 mm)
Battery (low voltage)
3
2 (Concentric)
1-1/4" & 1"
1.72” (43.7 mm) / 1.36“ (34.5 mm)
Solar (high voltage)
4
11
1/2” or M20
7/8” (22.2 mm)
Solar (high voltage)
5
1
1/2” or M20
7/8” (22.2 mm)
Communication
6
1
3/4”
1.09" (27.8 mm)
Communication
7
4
3/4"
Solar (high voltage)
8
2
1”
1.36“ (34.5 mm)
Battery (low voltage)
9
3
1/2” or M20
0.88” (22.2 mm)
Battery
10
2
1/2” or M20
0.88” (22.2 mm)
Solar
11
2
3/4”
1.09” (27.8 mm)
Solar (high voltage)
** Solar connector mounting hole diameters vary. Wieland Solar DC connectors recommended.
Table
3-1.
Knock-out
sizes
