Stacking Outback Inverters
Outback inverters can be
combined for increased performance and versatility. Not only can you grow
your system as you go, but you can also save considerably on standby power
consumption by allowing the system to apply as many inverters are required to
support an electrical load. Stacking Outback inverters in parallel
increases capacity, stacking Outback inverters in series allows for 240V or
three phase power.
Parallel Stacking -
More power at same output voltage
When the inverter/chargers are
stacked in parallel all inverter and charger outputs are combined. This means
that each inverters AC output is added up to equal your total system AC output,
up to 36,000 watts, in phase at the same 120 VAC/60 Hz or 230 VAC/50 Hz output
voltage. Charging output amperage is also combined in this same manner.

OutBack Series/Parallel Stacking
- More power at all output
voltages
Series/Parallel stacking or
Outback (OB) stacking is unique to Outback inverter/chargers. Never before has
it been possible to have inverter/chargers balancing loads intelligently between
two legs of AC power while seamlessly changing between series and parallel. OB
Stacking uses the X-240 auto transformer to balance the loads between the two
separate series legs of a system. The X-240 autotransformer allows AC loads on leg 1 and leg 2
to be powered by any combination of inverter/chargers within your system. Even
if there are only two inverter/chargers, connected in series, they can also
function as if connected in parallel. This allows larger AC loads to be operated
by a system without risking overloading one of the 120 VAC outputs.

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