Figure 3, Dc Wiring Diagram - Trace Engineering LEGEND II Manual

Vehicle Chassis
Ground (green)
As an option, you may
directly connect between
DC load center negative
and vehicle chassis
ground (green) terminal of
inverter
WK

Internal Shunt
NOTE: In accordance with
NEC code, the fuse block
must be no more than 18
inches from the battery
bank.

Figure 3, DC Wiring Diagram

Fuse Block
DC Load
Distribution
Panel
Out to DC loads