Description
The EcoFlow DELTA Pro 3 + 400W Solar Panel + Transfer Switch (306A) is the most complete DELTA Pro 3 home solar backup bundle available — combining the flagship portable power station, high-output solar charging, and an automatic transfer switch in a single purchase that covers every element of a self-sufficient home backup system. Everything you need for solar-powered whole-home protection is included.
The DELTA Pro 3 brings 4,000W of AC output with native 120V and 240V capability, 4kWh of expandable LFP storage (up to 48kWh), and UL9540 certification. The 400W portable solar panel (23% efficiency) delivers up to 2kWh of clean energy per day, feeding directly into the DELTA Pro 3’s 2,600W dual solar input — keeping the battery charged from the sun and reducing grid dependence throughout normal daily use. The 306A Transfer Switch handles both 125V and 250V circuits, connecting to your home panel and automating grid-to-battery circuit failover in milliseconds when the grid drops — no manual action, no extension cords, no interruption to your connected appliances.
Together, these three components create a renewable, resilient home energy ecosystem: the solar panel charges the station daily from sunlight, the station powers your home during outages, and the transfer switch manages all switching automatically. Storm Guard auto-charges the DELTA Pro 3 to full capacity before predicted severe weather. The EcoFlow app provides unified monitoring of solar input, battery state, and home energy flows.
Professional installation required for the transfer switch. Backed by a free 5-year warranty on the DELTA Pro 3.
