EcoFlow Transfer Switch A510A 125/250V 50A

Yes. This wires into your home's main electrical panel and controls which circuits switch over to backup power during an outage. Get a licensed electrician to handle the install — it's not a job for a general handyman or a weekend DIY project.

125V mode covers standard household circuits up to 3,750 W through a NEMA L5-30 inlet. Switching to combined 125/250V mode raises the ceiling to 7,500 W using the higher-amperage NEMA L14-30 inlet — useful if you're backing up larger loads or appliances that need 240V.

It's built around pairing two units together for a larger backup feed. If you only have one station, ask us about EcoFlow's smaller transfer switch options — this size, and its price, may be more switch than your single-unit setup actually needs.

It has 6 circuit positions, each with its own breaker protection, so you and your electrician choose which 6 circuits switch over during an outage — lights, a fridge, a well pump — rather than backing up your entire panel at once.

It's specified for pairing DELTA Pro or DELTA Pro Ultra units. If you're building a DELTA Pro Ultra X system, call (619) 238-0205 to confirm which transfer switch and hub combination fits your specific inverter and battery count before you order.

5 years on the transfer switch itself, per EcoFlow's published spec sheet — separate from whatever warranty applies to the DELTA Pro or DELTA Pro Ultra units it's wired to, so hang on to both sets of paperwork after installation.