Operator`s manual
2003 - Magnum Energy, Inc.
8
2. INSTALLATION
2. Pre-Installation, continued
Hardware / Materials Required
Conduit, strain-reliefs and appropriate fittings
1/4" mounting bolts and lock washers
Electrical tape
Wire ties
Tools Required
Misc screw drivers Level 1/2" wrench
Drill and drill bits Pliers Wire strippers
Level Pencil or Marker Multimeter
Wiring
Pre-plan the wire and conduit runs. For maximum safety, run both AC and DC
wires/cabling in (separate) conduit. Direct current wiring, due to its potential to
generate RFI, should be tied together with electrical tape. Wiring and installation
methods must conform to all applicable electrical codes.
NOTE: Run DC cabling in twisted pairs, keeping the runs as short as practical.
AC Connections
Use #10 AWG (or larger) THHN wire for all AC wiring. The inverters AC terminal
blocks accept up to #6 AWG wire.
DC Connections
Battery to inverter cabling should be only as long as required. If using #2/0 AWG
cables, do not exceed 5 feet (one way) for 12 VDC systems.
Crimped and sealed copper ring terminal lugs with a 5/16 hole should be used to
connect the battery cables to the inverters DC terminals.
AC Grounding
The ME Series inverter/charger contains an internal neutral-to-ground switching
circuit for the AC electrical system.
WARNING: The AC shore power neutral must be grounded ONLY through the
shore power cable. Do not ground AC to the vehicles chassis.
DC Grounding
The inverter/charger should always be connected to a permanent, grounded
wiring system. For the majority of installations, the negative battery conductor is
bonded to the vehicles safety-grounding conductor (green wire) at only one point in
the system. The size for the conductor is usually based on the size of the largest
conductor in the DC system. DO NOT connect the battery negative (-) cable to the
vehicles safety ground. Connect it only to the inverters negative battery terminal.
If there are any non-factory installed DC appliances on board the vehicle, DO NOT
ground them at the safety ground. Ground them only at the negative bus of the DC
load center (as applicable).