Ac Wiring (Mm612 & Mm1212 Models); Neutral To Safety Ground Bonding; Ac Wiring Connections; Table 2, Wire Color To Ac Wire Connection - Sensata MAGNUM ENERGY MM Series Owner's Manual

Installation
Once the DC connections are completely wired and tested, coat the terminals
with an approved anti-oxidizing spray.
Press on the red and black terminal covers to the inverter's DC connectors
to secure them in place.
If batteries are in an enclosure, perform a fi nal check of the hold down brackets
and all connections. Close and secure the battery enclosure.
2.6 AC Wiring (MM612 & MM1212 models)
This section describes the required AC wire size and the overcurrent protection
needed. It also provides information on how to make the AC connections.
2.6.1

Neutral to Safety Ground Bonding

Electrical safety standards for wiring mobile (RV, boat, or truck) installations
require the AC source (inverter, shorepower, or a generator) to have the
neutral conductor tied to ground. These standards also require that the AC
neutral be connected to safety ground in only one place at any time (often
called a "bond"). If more than one bond is established, currents can circulate
between neutral and ground and cause ground-loop currents. These "ground-
loops" can trip GFCIs and cause an electric shock hazard.
In mobile installations there may be multiple AC sources, which means there
is the potential of having multiple neutral-to-ground connections. Therefore,
ensure that the inverter does not also connect neutral-to-ground while the
other AC source is powering the inverter loads. While inverting, the MM Series
inverters use an internal relay that automatically connects the AC neutral
output terminal to the vehicle/boat's ground. However, when an external AC
source is connected, another neutral-to-ground connection is introduced in
the system. When the MM inverter is connected to this external AC source,
the internal relay automatically opens the neutral-to-ground connection. This
keeps two neutral-to-ground connections from occurring at the same time.
2.6.2

AC Wiring Connections

For all hardwired inverter models, the AC input and output wiring is performed
in the AC wiring compartment. This compartment is located on the top panel
(see Figure 1-2, Item 7a). If installed, remove the two Phillips screws on the
cover to access the AC wiring compartment and locate the inverter's AC wiring.
There is a label located in the AC access compartment with information on
which wires are used for the AC input and output. You can also refer to Table
2 to match the inverter's AC wires to the appropriate AC wire connection.

Table 2, Wire Color to AC Wire Connection

AC IN
AC OUT
AC GROUND
15
Wire Color (Label)
Black (HOT IN)
White (NEUT IN)
Red (HOT OUT)
White w/ Black Stripe
Green (GROUND)
Wire Connection
Hot In
Neutral In
Hot Out
Neutral Out
AC IN & AC OUT Ground
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