Magnum Energy Series Stacking Cable Kit (ME-SSI) - Manual (Page 7)

©
2010 Magnum Energy, Inc.
Installation
2
Installation
When connecting inverters in a series stacked confi guration,
certain installation requirements are needed to obtain optimum
performance.
This section provides information on DC and AC wiring and con-
necting the stacker cable. Use the information in this section along
with the installation requirements provided in the owner’s manual
for your inverter to ensure a successful installation.
IMPORTANT - Before you begin your installation:
Series stacking allows two MS4024 (120VAC inverters) to be com-
bined to provide a higher AC voltage (two MS4024 series stacked
= 8000 watts @ 120/240VAC). Magnum also has inverters that
can be installed in a confi guration known as “parallel stacking”.
This confi guration allows you to increase your inverter output
power using a maximum of four MS-PAE units. For example, four
MS4024PAE Series inverters (using the ME-RTR router) can be
combined to provide 16,000 watts of inverter power (MS4024PAE
x 4 = 16,000 watts @ 120/240VAC).
Info: The MS4024 (120VAC unit) cannot be reconfi gured
to allow parallel stacking. Only the MS-PAE Series
(MS4024PAE or MS4448PAE) can be paralleled stacked.
CAUTION: All wiring must be done in accordance with
local and national electrical safety standards.
DC Wiring
The success of an inverter system installed in a series stacked con-
fi guration is dependent on the quality and maintenance of the DC
connections and proper cable sizing. When inverters are stacked
and required to perform optimally, the DC connections must be
tight and the cables must not be too long or undersized. Refer to
the owner’s manual for your inverter to determine the required
cable size and overcurrent protection device for each inverter.
CAUTION: Before making any DC connection, ensure
the cable polarity at both the battery and the inverter
are correct. Positive must be connected to positive;
negative must be connected to negative. Reversing the
positive and negative battery cables will damage the
inverter. This type of damage is easily detected and will
void your warranty.
For help against accidental shorts, the ME-SSI kit provides two
DC terminal insulators. These are to be used where both the bat-
tery cables and DC interconnects are connected (see Figure 2).
Alternately, a DC Conduit Box (PN: ME-CB) or Mini Magnum Panel
(MMP250-60S) may be used to protect the DC terminals.
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