Powering the Modular Switch
•
Commercially available 2 to 4 AWG wire is recommended for installations in the U.S.
•
Wire size should meet local and national installation requirements.
•
Grounding wires and grounding lugs are not supplied.
•
Strip the wires to the appropriate length for the lugs.
The wires connecting the DC power supply to the power source must meet the following
requirements:
•
DC Input Wire Size: 2 – 4 AWG (33.6 mm
2
to 21.2 mm
2
).
•
Primary Ground Wire Size: 2 – 4 AWG (33.6 mm
2
to 21.2 mm
2
) per power supply.
•
The conductors are copper.
1
-48V + RTN lug
5
5/16”
9
5/8”
2
Insulated wire
6
Heat-shrink tubing
10
1/2”
3
Insulated wire
7
Heat-shrink tubing
4
Ground lug (right angle) 8
1/4”
Figure 20: Lugs Wiring Terminations
Figure 21: Ground Lug Wiring Termination (PWR-2700W-DC-R)
1
Insulated wire
3
5/16”
2
Ground lug (right angle) 4
Heat-shrink tubing
Note: You can also use a 45° angled connector instead of the straight connector shown.
2. Use agency-approved compression (pressure) lugs for wiring terminations with a single 5/16"
mounting hole. Two-hole lugs should have 1/4" mounting holes on 5/8" centers.
The PWR-2700W-DC-R ground lug is a right-angle lug. Check the terminations for the appropriate
wire size. Use a ground wire of at least 2 – 4 AWG. Use only copper wire.
3. Slip on heat-shrink tubing on the wire ends before assembling the lugs on to the wire.
•
The lugs must be crimped with the proper tool.
•
The tubing should extend over the lug’s barrel and the wire's insulator.
4. Shrink the tubing with a heat gun.
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