<https://www.solarpanelstore.com/products/outback-vfxr3524a-off-grid-grid-hybrid-3500w-24v#product>
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"OutBack Power Vented VFXR3524A-01 - 3,500 W, 24 V Inverter Charger with 120 VAC Output  The new FXR Series of inverter / chargers are capable of off-grid or grid-connected operation in a single model. The FXR Grid/Hybrid inverter chargers provide system designers with unprecedented flexibility and compatibility for nearly any power conversion scenario. The FXR inverter / chargers can be paired with a MATE3 to add OPTICS RE to monitor and control system performance from any location. Multiple units may be stacked and connected with other OutBack Power electronics for more seamless system integration and the ability to function in a wide variety of applications and system sizes. Up to nine inverters can be combined in a 3 phase system with the 12 V, 24 V, or 48 V models, and up to 36kW in a grid-tied 24 V or 48 V system. The exclusive modular system architecture means that increased power output is just an additional FXR inverter / charger away.  Specs and Features 3,500 W Continuous Power rating, 120 VAC Output Nominal DC Input Voltage - 24 V Both Off-Grid and Grid-Tied functionality in one unit Seven Programmable modes, including GridZero, Support mode and built in networked communications Advanced Battery Charging (ABC) with expanded charging voltages and time parameters, enables system designers to accommodate the specific charging profiles and algorithms of new and emerging energy storage technologies including Lithium Ion , Aqueos Ion, and Flow chemistry batteries. Easy to upgrade in the field Typical operating efficiency - 92% Standard 5 year warranty, optional 10 year warranty.  For additional information, please see the spec sheet and user manual linked below.     VFXR3524A Datasheet    FXR A Series Installation Manual    FXR A Series Operators Manual        Documents: Datasheet1 Datasheet2 Datasheet3"
<https://www.solarpanelstore.com/collections/outback-fxr-120v-a-series/products/outback-vfxr3524a-off-grid-grid-hybrid-3500w-24v>