Magnum Energy Series Stacking Cable Kit (ME-SSI) User Manual
Page 15
©
2010 Magnum Energy, Inc.
Installation
10
on each inverter. This panel, referred to as the “main panel,” also
provides the neutral and ground bus for connecting the neutral and
ground conductors to the inverter.
AC Output – The AC output from each inverter when series
stacked is 120VAC from HOT OUT to NEUT OUT. The inverters
can be wired as a HOT 1 OUT only or HOT OUT 1 and HOT OUT 2
connected together by a jumper – depending on your pass-thru
current requirements. One inverter is wired to provide one 120VAC
output (L1) and the other inverter is wired to provide the second
120VAC output (L2). These L1 and L2 outputs are 180° out-of-
phase, so the combination of the two out-of-phase 120VAC outputs
will provide 240VAC.
The HOT OUT outputs of each inverter require a two-conductor
(hot and neutral) plus ground cable connected to a 120/240VAC
split-phase distribution panel for the loads. The panel, referred
to as the “sub-panel”, must be equipped with a 240VAC double-
pole circuit breaker rated at 30 or 60 amps maximum depending
on which Single In/Single Out confi guration you are using. The
inverters output should be wired to this circuit breaker and will
be used as the sub-panel main disconnect. The sub-panel then
provides circuit breakers for the 120VAC and 240VAC branch
circuits powering the loads.
AC Terminal Block – When wiring to the inverter’s six-pole
AC terminal block as a series stacked pair, four different wiring
confi gurations can be used. These different wiring confi gurations
depend on whether the output of your AC source can provide up to
30 or 60 amps, and whether you are using a split-phase (120/240
VAC) AC source or a 120VAC only source. If only wiring to the HOT
1 (Single In/Single Out @ 30 amps), it means you have up to 30
amps pass-thru and share the incoming power with the charger.
Wiring to the HOT 1 input with a jumper to the HOT 2 input (Single
In/Single Out @ 60 amps) provides up to 30 amps pass-thru on
each input (60 amps total).
Info: The Dual In/Dual Out wiring confi guration is not
recommended with a series stacked system, as they
would confl ict with one another.