Reference: EcoFlow Delta Pro Transfer Switch Installation for Boondocking

Reference: EcoFlow Delta Pro Transfer Switch Installation for Boondocking

This post documents key takeaways from the video
“Best EcoFlow Delta Pro Setup for Boondocking – Install a Transfer Switch!”.
The creator demonstrates how to integrate an EcoFlow Delta Pro into an RV electrical system using an
automatic transfer switch (ATS), allowing the power station to safely power all onboard circuits while remaining protected inside a storage compartment.

This installation method is relevant to my electrical planning, especially as I evaluate the EcoFlow DELTA Pro 3, the Smart Generator 4000, and a 50‑amp shore power inlet for the cargo trailer conversion.

Overview of the Setup

The video shows how the installer wires an ATS into the RV’s existing shore‑power line so the EcoFlow Delta Pro can power the entire RV without running an external cord. The Delta Pro remains inside a storage compartment, protected from weather and theft. The ATS automatically switches between:

  • Shore power
  • EcoFlow Delta Pro
  • Generator input

This allows all interior outlets and circuits to remain live regardless of the power source. The EcoFlow can also recharge from shore power through the same wiring path.

Key Details from the Installation

  • Shore power line is cut and routed into the transfer switch, then back out to the RV’s breaker panel.
  • EcoFlow Delta Pro output is connected to the second input of the ATS.
  • Generator plug is connected to the third input.
  • The Delta Pro remains inside a storage compartment, protected from weather and theft.
  • The system allows the RV to recharge the Delta Pro from shore power without moving the unit.

Safety Considerations Mentioned

Several comments and responses highlight important safety notes:

  • Ventilation: The storage compartment in the video has ~15 sq in of airflow, preventing overheating. The Delta Pro’s BMS will throttle or shut down if temperatures rise too high.
  • Aluminum-to-copper wiring: When joining dissimilar metals, an anti‑oxidant compound should be used to prevent oxidation and fire risk.
  • Breaker management: Some RVs require turning off the onboard battery charger to avoid unnecessary load on the power station.

Why This Setup Is Useful for My Build

This installation method aligns well with my electrical system goals:

  • Keep the EcoFlow unit inside the trailer for protection.
  • Use a transfer switch to safely manage shore, generator, and battery power.
  • Allow the EcoFlow to power all circuits without external cords.
  • Enable automatic charging from shore power.
  • Maintain a clean, modular, serviceable electrical system.

This video serves as a practical reference for integrating the EcoFlow ecosystem into the cargo trailer conversion, especially as I evaluate the DELTA Pro 3, the Smart Generator 4000, and a 50‑amp shore power inlet.

Notes for Future Planning

  • Determine ATS size and compatibility for a 50‑amp shore power inlet.
  • Evaluate ventilation requirements for the EcoFlow storage compartment.