Owner`s manual
© 2009 Magnum Energy IncPage 24
Installation
2.5.5 AC Wiring Confi gurations
The following table provides the different wiring confi gurations for installing and connecting the
AC conductors into and out of the inverter (refer to fi gures 2-11 to 2-15 for installation drawings
showing these confi gurations).
Table 2-3, AC Input/Output Wiring Confi gurations
SI/SO
(30A)
Single In/
Single Out
(30A)
SI/SO (60A)
Single In/
Single Out
(60A)
SI/DO
Single In/
Dual Out
DI/SO
Dual In/
Single Out
DI/DO
Dual In/
Dual Out
AC Source
1
Required
120 VAC @
< 30 amps
120 VAC @
> 30 amps
(60 amps
maximum).
120/240 VAC (or
2 separate legs of
120 VAC)
@ < 15 amps per
leg (-15B models);
or < 20 amps per
leg (-20B models).
120/240 VAC (or
2 separate legs
of 120 VAC)
@ < 30 amps
per leg
120/240 VAC (or
2 separate legs
of 120 VAC)
@ < 30 amps per
leg
Reason to
Use
Have an 120
VAC source
that is < 30
amps.
Requires
a separate
inverter
sub-panel.
Have an 120
VAC source
that is > 30
amps.
Requires
a separate
inverter
sub-panel.
Do not want to
install a separate
inverter sub-panel.
Inverter pass-thru
capability limited
by model used:
-15B = 30 amps;
-20B = 40 amps.
Want dedicated
charging and
dedicated pass-
thru while the
AC source is on.
Requires a
separate inverter
sub-panel.
May need to
power 240 VAC
loads when
AC source is
on (requires
120/240 VAC
source).
Requires a
separate inverter
sub-panel.
Appropriate
Models
MS2012
MS2812
MS4024
MS2012
MS2812
MS4024
MS2012-20B
MS2012-15B
MS2012
MS2812
MS4024
MS2012
MS2812
MS4024
Maximum
Input
Breaker
Required
-
Minimum
Wire Size
30A
(single pole)
-
#10 AWG
(In & Out)
60A
(single pole)
-
#6 AWG
(In & Out);
Can be split to
two #10 AWG
(for HOT 1
& HOT 2)
-15B models:
30A (single pole);
-20B models:
40A (single pole)
-
#10 AWG (In)
(Hot input must
be split to two
#12 AWG);
#12 AWG x2 (Out)
30A
(dual pole)
-
#10 AWG
(In & Out)
30A
(dual pole)
-
#10 AWG
(In & Out)
Maximum
Inverter
Pass-thru
capacity
3600W
(30A @
120 VAC)
7200W
(60A @
120 VAC)
-15B models:
3600W
(30A @ 120 VAC);
-20B models:
4800W
(40A @ 120 VAC);
3600W
(30A @
120 VAC)
7200W
(2 legs of 30A @
120/240 VAC or
2 legs of 30A @
120 VAC)
2
Wiring
Diagram
Figure 2-11 Figure 2-12 Figure 2-13 Figure 2-14 Figure 2-15
Note 1: AC Source is from either the utility/grid power (i.e., shore power) or an AC generator.
Note 2: If 2 legs of 30A @ 120 VAC are used, they must be from the same source.