Early Black Friday Price Drop Guarantee. If our price drops by Cyber Monday, we'll refund the difference. See details
Found the same price or less? Just ask & we'll beat it.
The EcoFlow FlowMaster Generator Rectifier (model EF-SW-002) is a wall-mounted box that converts a portable generator's AC output into stable DC power for smooth, safe charging of the DELTA Pro Ultra X. It has one generator input, two PV inputs and two DC outputs, with two manual switches that set each circuit to solar (PV) or generator (GEN).
It is for DELTA Pro Ultra X owners who want a generator as a backup charging source next to their solar. EcoFlow also lists the TITAN Series as compatible.
With a 120V AC generator, the rectifier outputs 170V DC. With a 240V AC generator, it outputs 340V DC. Generator output is limited to 15A and 7200W across its two outputs, giving your system a steady DC charging source.
EcoFlow says the rectifier supports virtually all portable gasoline generators rated up to 12kW, with no need for a soft starter. The generator input takes 120/240V AC at 60Hz and up to 30A. That means you can likely use a generator you already own.
The installation guide shows three ways to use it. Turn both switches to PV for solar only, both to GEN for generator only, or one to each to run solar and the generator at the same time. Each switch matches a numbered PV circuit.
Each PV input accepts 80–500V DC at up to 15A. With the switches on PV, the outputs carry 80–500V DC at up to 15A and 10000W across the two outputs. Your solar keeps charging through the rectifier with no rewiring.
The rectifier operates from -22°F to 122°F (-30°C to 50°C) at altitudes up to 3000 m and has an IP20 rating. The guide shows it mounted upright and level on a wall, shaded from direct sunlight, and not tilted, laid flat or turned upside down.
Long outages. When solar can't keep up during an outage, set one or both circuits to GEN and let a generator recharge your DELTA Pro Ultra X.
Solar plus generator. Keep one circuit on solar and the other on the generator so both sources charge at the same time.
TITAN Series systems. EcoFlow lists the TITAN Series as compatible, so the rectifier can add generator charging to a TITAN setup too.
Versus adding a soft starter. Some generator setups call for a soft starter. EcoFlow says the FlowMaster needs none with portable gasoline generators rated up to 12kW.
Versus solar alone. Solar output depends on the weather. The rectifier keeps your solar connected and adds a generator option on either circuit.
This may be a good fit if
Yes. EcoFlow lists the TITAN Series as compatible. For the TITAN 5000 Classic, connect a 120V generator only, never a 240V source, and keep the total PV string voltage at 250V or below.
Yes. Set one switch to PV and the other to GEN. Turn off the PV switch box and the generator before you change the switches.
The switches match the numbered PV circuits one to one. Turn the switch that matches your PV circuit to the PV position to use solar input.
The EcoFlow FlowMaster Generator Rectifier lets a portable generator charge your DELTA Pro Ultra X alongside your solar, with a PV or GEN switch for each circuit. If you have questions about your generator, solar setup or installation, the Outbound Power team is happy to help.
EcoFlow FlowMaster Generator Rectifier Specifications |
|
|---|---|
| General | |
| Model | EF-SW-002 |
| SKU | EFA-ACDCBOX7.2KW-US |
| Electrical | |
| PV Input (x2) | 80-500V DC, 15A max |
| Generator Input (x1) | 120/240V AC, 60Hz, 30A max |
| DC Output, 120V Generator | 170V DC |
| DC Output, 240V Generator | 340V DC |
| DC Output Limit, Generator | 15A max, 7200W, 2 outputs in total |
| DC Output, PV Input | 80-500V DC, 15A max |
| DC Output Limit, PV Input | 10000W, 2 outputs in total |
| Supported Generators | Portable gasoline, rated up to 12kW |
| Soft Starter | Not needed |
| Compatibility | |
| Works With | DELTA Pro Ultra X, TITAN Series |
| TITAN 5000 Classic Generator | 120V only (no 240V source) |
| TITAN 5000 Classic PV String | 250V max total |
| Installation | |
| Installation Method | Wall mount |
| Switching Method | Manual (PV or GEN per circuit) |
| Drill Needed | Hammer drill with 8 mm (5/16 in) bit |
| Screwdrivers Needed | Electric screwdriver and screwdriver |
| Other Tools Needed | Level, marker, hammer |
| Environment | |
| Operating Temperature | -22°F to 122°F (-30°C to 50°C) |
| Ingress Protection | IP20 |
| Operating Altitude | Up to 3000 m |
Yes! Outbound Power is an Authorized Dealer for every single brand and product on our store.
Shipping times vary depending on your location and the product or products ordered.
Order Processing Time
Most products are processed within 1-3 business days. If there is a delay in processing your order, we will alert you with as much information as possible about what to expect.
After order processing is complete, you will receive tracking information to monitor your order while it is in transit.
Order Shipping Time
Following processing, it may take between 3 and 8 days to arrive, depending on your location.
Please refer to the product page for your item and reference the estimated delivery time frame for more details.
Additionally, you can see the estimated delivery time frame during checkout and receive a tracking number once your order ships.
Everything on our store ships for free. Really!
Most items may be returned within 30 days of delivery. Please refer to our Returns & Exchanges policy to determine what items are eligible. Returns are not accepted beyond 30 days following delivery.
Everything sold on our website is brand-new.
No — we price BEAT! Please refer to our Price Beat Promise for full details.
Click to apply at checkout
placeholder
