LOAD L1 120VAC | LOAD L2 120VAC | |
500WATTS | 4500WATTS | |
TO LOADS | TO LOADS | |
500W | 4500W | |
X240 | ||
| ||
25 AMP | 25 AMP | |
BLACK | RED | |
2000W | 2000W |
2500W
WHITE 
WHITE
2500W
| AC NEUTRAL BUS |
120V | 120V |
Figure 7: FW-X240 Installation Balancing Two FX Series Inverter/Chargers (OutBack Stacking)*
*Figure 9 shows current fl owing from the L1 FX through the FW-X240 to run in parallel with the L2 FX output. The L1 inverter is producing almost half of the power required to power the load on L2 and
at the same time is supplying power to its own L1 load.
•When both FXs are awake and producing power, a 240 Volt load will be powered by both inverters equally.
•If there is less than 1000 watts on L1, then the L2 FX will go to sleep. The
•A small 240VAC load would be powered from the L1 inverter and the
•A large load turning on will wake up the L2 FX. The L2 inverter will go back to sleep as soon as the large load on L2 goes away.
Note: Systems with more than four FXs might require two
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