23
3 kW 120 VAC 3 kW 120 VAC
9 kW
120 VAC
LOAD
3 kW 120 VAC
STACKING OPTIONS
OutBack FXs can be stacked in one of ve di erent con gurations:
1. OutBack Parallel
2. Classic Series
3. OutBack Series
4. OutBack Series/Parallel
5. 3-Phase
Note: Although stacking 10 FXs is possible, OutBack’s AC hardware only accommodates con gurations
of two, four, or eight FXs. A system with eight FXs would require two AC Input/Output Bypass (IOB)
Assembly Kits or installing an external manual bypass; ten FXs would require three IOB kits or an
external manual bypass.
1. Outback Parallel
• 2-10 FXs are wired to the same 120VAC output leg or phase.
• The Slave FXs can be programmed to remain at di erent power levels (“Silent” or “On” depending on
the need) to save energy; the Slaves will come on when the power demand requires them.
• This power-saving system is fully automatic and works with or without a MATE connected to the
system, although a MATE is required to program the components. Without a MATE, the user cannot
reprogram.
• The AC input (generator or grid) must be 120VAC.
2. Classic Series
• Two FXs are wired to two 120VAC output
legs producing 240VAC between them.
• Each FX powers one leg and acts
independently of the other, but both
combine when 240VAC is required for a load.
• The AC input (generator or grid) must be 240
split-phase VAC.
3 kW
120 VAC
Leg 2
3 kW 120 VAC
3 kW 120 VAC
LOAD
3 kW
120 VAC
Leg 1
6 kW
120 VAC
Leg 1
and
Leg 2
or
3 kW
120 VAC
Leg 2
