14
DC Wiring Connections
A fuse is required by the National Electrical Code (NEC) to protect the battery and cables. A
UL listed 250 Amp DC rated slow blow fuse or circuit breaker must be installed in the Positive
battery cable within 18 inches of the battery.
e DC connecting cables should be made of copper wire. To achieve maximum battery
voltage at the WF-5118/5120 Inverter terminals, keep the cable lengths as short as possible.
e WF-5118/5120 require 2/0 AWG wires for DC connections.
If not already available, prepare a Red Positive 2/0 AWG battery cable by stripping back ½” of
insulation and crimping on a 3/8” ring terminal. In a similar fashion, prepare a Black Negative
battery cable.
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Figure 6
Figure 7
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