Description
The EcoFlow DELTA Pro 3 + Smart Generator 4000 + Transfer Switch is the ultimate unlimited-runtime home backup bundle. The three components work together seamlessly: the transfer switch handles automated failover, the DELTA Pro 3 provides the battery storage and power output, and the Smart Generator automatically recharges it whenever the battery drops too low — creating a self-managing system that can run indefinitely.
The DELTA Pro 3 delivers 4,000W of AC output with 120V and 240V capability, 4kWh of LFP storage expandable to 48kWh, and UL9540 certification. The Smart Generator 4000 (dual fuel — gas or LPG) auto-starts when battery level drops below your set threshold and shuts off once charging is complete, burning fuel only when necessary. The 306A transfer switch routes selected home circuits to battery power in milliseconds when the grid fails.
Storm Guard pre-charges before severe weather. 2,600W solar input for renewable charging. Professional installation required for the transfer switch. Free 5-year warranty on the DELTA Pro 3.
