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T4000 DC Power Cable and Lugs Specifications


DC Power Cables

You must supply DC power cables that meet the following specifications: 4-AWG (21.2 mm2), minimum 90°C wire, or as required by the local code.

Table 1 summarizes the number of DC power cables required, which you must supply.

Table 1: DC Power Cables Required

Number of Inputs Connected

Power Cables Required






For field-wiring connections, use copper conductors only.


DC Power cables must not block access to router components or drape where people could trip on them.


You must ensure that power connections maintain the proper polarity. The power source cables might be labeled (+) and (–) to indicate their polarity. There is no standard color coding for DC power cables. The color coding used by the external DC power source at your site determines the color coding for the leads on the power cables that attach to the terminal studs on each power supply.

DC Power Lugs

The accessory box shipped with the router includes cable lugs for 4-AWG (21.2 mm2) cable lugs. The cable lugs are dual hole, and sized to fit 1/4-20 UNC terminal studs at 15.86-mm (0.625-in.) center line.

Figure 1: DC Power Cable Lug
DC Power Cable Lug

The cable lug shown in Figure 1 is also used for the grounding the chassis.


Before router installation begins, a licensed electrician must attach a cable lug to the power cables that you supply. A cable with an incorrectly attached lug can damage the router.