©
2013 Magnum Energy, Inc.
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Installation
2.5.5
AC Conductor Wiring
The following steps are basic guidelines for installing and connecting AC wiring to and from an
MSH-M Series inverter.
WARNING
: Before making any AC connections, make sure the inverter is disconnected
from the battery and no AC power is connected to the inverter.
Remove the two Phillips screws on the AC wiring access cover (Item 15, Figure 1-3) to access the
internal AC terminal block (see Figure 2-8).
Wiring the Inverter AC Input
1. Route the wires (HOT, NEUTRAL, and GROUND) from the AC electrical main panel through one
of the strain relief clamps on the inverter (Item 8, Figure 1-2). Tighten the strain relief clamp
securely on the wires. Always leave a little extra slack in the wiring. Refer to Figure 2-9 for
this procedure.
2. Connect the HOT wire (black) from the main panel’s dedicated breaker to the inverter’s HOT
IN terminal.
3. Connect the NEUTRAL (white) from the main panel’s neutral busbar to the inverter’s NEUTRAL
IN terminal.
4. Connect the GROUND (green or bare copper) wire from the inverter’s AC GROUNDS terminal
to the main panel’s ground busbar.
Wiring the Inverter AC Output
1. Route the wires (HOT, NEUTRAL, and GROUND) through the unused strain relief clamp on the
inverter (Item 8, Figure 1-2) to the AC electrical sub-panel. Tighten the strain relief clamp
securely on the wires.
2. Connect the HOT (black) wire from the inverter’s HOT OUT terminal to the sub-panel‘s main
breaker.
3. Connect the NEUTRAL (white) from the inverter’s NEUTRAL OUT terminal to the sub-panel’s
neutral busbar.
4. Connect the GROUND (green or bare copper) wire from the inverter’s AC GROUNDS terminal
to the sub-panel’s ground busbar.
AC Wiring Inspection
1. Verify all cable runs are secured. In a mobile installation, wire ties or other non-conductive
fasteners should be used to prevent cha
fi
ng or damage from movement and vibration.
2. Verify strain reliefs or grommets are in place to prevent damage to the wiring where it passes
through walls/bulkheads or other openings.
3. Verify that all AC connections are correct, all the inverter AC terminal screws are torqued to a
maximum tightening torque of 16 in lbf (3.6 N-m), and the AC ground terminal is torqued to
a maximum tightening torque of 45 in lbf (5.1 N-m).
4. Replace the AC wiring access cover and the covers on the main electrical/distribution panel.
