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System Configuration
2–42 976-0043-01-02
Dual-Inverter Configurations (240 Vac)
If 240 Vac power is required and the wattage required exceeds the wattage
output of a single inverter, it may be necessary to add a second inverter.
Two inverters can be “series” stacked to provide both 120 Vac and
240 Vac, 60 Hz, power to the AC loads.
Series stacking is an excellent choice for providing power to multi-wire
branch circuits where stand-alone (120 Vac) inverters may require
extensive rewiring within the building.
See Appendix F, “Multi-wire Branch Circuit Wiring” regarding multi-
wire branch circuits.
See Figure 2-22 for an example of this configuration showing all the
optional equipment. Disregard any part of this illustration that does not
apply to the system configuration being installed.
Note:
Series-stacking inverters require the use of the ISC-S cable. This
interface cable is connected to the series stacking port of the inverters (see
“Inverter Stacking Control – Series (ISC-S) Cable” on page 2–29).