Plug and play home backup power

A transfer switch is a device that switches a load between Grid Power and Backup Power, simply connect EcoFlow Portable Power Station to your main panel via a Transfer Switch for instant home backup (Transfer Time 1~2s).
*Picture for reference only, subject to our available products.
*AC Plug Cable is needed to connect Power Station with Transfer Switch, and be provided by the electrician.

Learn more about how to backup your home with our Portable Power Station and Transfer Switch: Whole-Home Backup Kit User Guide

Introducing the world's first portable home battery with an expandable ecosystem for home backup, smart energy management, lower energy bills, and more. The EcoFlow DELTA Pro is the next leap in portable power technology, offering you power security and independence, wherever you are.

Expandable Capacity

Power Pretty Much Anything (3600W-7200W Output)

World's Fastest Charging (MultiCharge 6500W)

Home Integration

Power for any situation.

From tailgate power to extreme blackouts that last for days on end, DELTA Pro delivers up to 25kWh of capacity. With that, you're covered for any situation. That's the industry gold standard.

All the AC output you'll need.

A single DELTA Pro unit packs a 3600W AC output, which can be expanded up to 4500W with X-Boost technology. Power 99.99% heavy-duty devices at home, outdoors, or at work. You can even pair two units together to achieve 7200W with Smart Home Panel.

The world's fastest charging portable power station.

MultiCharge delivers record-breaking speeds at 6500W. To reach 6500W, you can opt for these charging methods.

Fully charge in 1.9 hours.

EcoFlow's X-Stream charging technology isn't just fast, it's safe too. The battery management system ensures safety and longevity while you fully charge DELTA Pro from a standard AC wall outlet in 1.9 hours*.

Charge up at thousands of EV stations worldwide.

For the first time ever with a portable power station, you can charge up at thousands of EV stations worldwide. This unique charging method gives you up to 3400W fast charging on the go.

Go renewable with 1600W solar charging.

EcoFlow's suite of solar products give you a cost-effective renewable energy source to stay powered. You can use solar energy to charge DELTA Pro in just 2.8-5.6 hours. DELTA Pro has a wide voltage range from 11-150V, which makes it compatible with 90% of third-party solar panels with solar connectors. And when the weather gets unpredictable, the smart maximum power point tracking (MPPT) automatically adjusts, maximizing your solar generation at any time of the day.

Get emergency backup power with the EcoFlow Smart Generator.

The EcoFlow Smart Generator serves as an emergency option that integrates with your DELTA Pro ecosystem. It auto-starts when your DELTA Pro hits a low level of charge, re-charges your DELTA Pro, and stops the engine all by itself once your DELTA Pro hits a full charge. Compared to a traditional gas generator, the EcoFlow Smart Generator delivers less energy loss, faster charging and higher efficiency.

A battery that lasts for years on end.

DELTA Pro sports a brand-new LFP battery with 6500 cycles, which means you can use DELTA Pro for years and years before your unit reaches 50% of the original capacity. EcoFlow's battery management system provides real-time analysis and regulation of voltage, current, and temperature. This unique protection mechanism makes DELTA Pro an incredibly safe and efficient home battery.

Multiple ways to control & monitor.

Control DELTA Pro either on the unit itself, using the remote control accessory, or unlock a ton of customization via the EcoFlow app. On the app, you can access your power settings, such as charging and discharging levels, AC charge speeds, control the Smart Generator and a whole lot more.

The world's first portable home battery ecosystem.

DELTA Pro's expandable ecosystem provides you with power during blackouts, customizable energy around the clock, and lower energy bills. How does it achieve all this? With a selection of extra batteries, smart generators, solar trackers, wind turbines, a smart home panel, and more. From backup power to reducing your reliance on the grid with green alternatives, the DELTA Pro ecosystem can be customized to your needs.

Introducing the EcoFlow Smart Home Panel.

The new EcoFlow Smart Home Panel is the heart of the DELTA Pro home battery ecosystem. It integrates up to two DELTA Pro units with 10 home circuits. Each DELTA Pro can be connected with extra batteries, solar panels, or smart generators, giving you uninterrupted power during blackouts, smart energy management for your critical loads, and lower energy bills.

Uninterrupted home backup.

With a fast 20ms switchover time, DELTA Pro and the Smart Home Panel can keep you powered on during a blackout. All the while, the EcoFlow app keeps you in the know, letting you select and modify your device priorities.

Smart Energy Management.

The EcoFlow DELTA Pro ecosystem stores energy day and night, reducing your reliance on the grid and lowering your energy bills by combating time-of-use rates. It integrates directly with your home using the EcoFlow Smart Home Panel. The EcoFlow app gives you a smart breakdown of your energy habits, and you can customize your energy usage for any type of situation.

RV living made easy.

With DELTA Pro, you can take home with you, wherever you go. It features wheels and a suitcase-esque extendable handle that makes transport easy.

Power that means business.

Not only does DELTA Pro provide home backup and off-grid power, it also gives you a secure power source for any type of professional work. Whether you're working at home or outdoors, from DIY to professional projects, DELTA Pro helps you get the job done.

What's in the box

1.DELTA Pro 2.AC Charging Cable 3.Car Charging Cable 4.DC5521 to DC5525 cable 5.Handle Cover 6.User Manual

Frequently Asked Questions

What's the max input DELTA Pro can achieve?

When charging DELTA Pro and its extra battery together, you can reach 6500W max charging speeds by combining AC, solar and Smart Generator methods. For DELTA Pro single unit, you can recharge it at standard wall outlets (2900W max), at EV station (3400W max)/Smart Home Panel (3000W max).

How many solar panels can I use at the same time?

It depends on the combined voltage and current of the solar panels you choose. It's fine as long as the solar panels use MC4 connectors and their combined voltage and current are within 11-150 volts and under 15 amps.

How do I update the firmware?

First of all, make sure your DELTA Pro is connected to the EcoFlow App using Internet mode. Secondly, go to the Firmware section in the Setting of the DELTA Pro you're looking to upgrade. Check for the latest firmware and follow the steps to finish the upgrade.

What is the warranty for the Ecoflow transfer switch?

The EcoFlow transfer switch comes with a 1-year warranty.

How do you install the transfer switch?

There are wiring diagrams and a how-to video of the installation and operating instructions for reference.

What are the issues with installation that I need to be aware of?

Firstly, installation of the transfer switch should be done by a licensed electrician or a qualified professional who will issue you a Certificate of Compliance (COC) afterward so that the insurance company won't repudiate any electrical-linked claims in the future. Secondly, to avoid the unit tripping out, you can discuss with your electrician which circuits or appliances should be excluded based on your electricity consumption and the power station capacity you own, such as the stove, geyser, and pool pump. Last, be aware of putting the transfer switch into a box to prevent electric shock. It is only viable with indoor circuit breaker panels.

How much will the installation of the transfer switch cost?

Generally, the installation costs include labour, traveling, cabling, protection box, and COC. It varies with many factors like traveling distance and the length of cable. The exact installation cost will need to be estimated by an electrician based on the specifics of your home's electrical circuits. We highly recommend that you source different electricians and get comparative quotes.

Where can I find a licensed electrician?

We have authorized some qualified installers in most of Johannesburg and Cape Town. Please contact us Monday to Friday, 8:30 a.m. to 5 p.m. GMT+2 at +27 80 088 0002 (toll-free) or support.za@ecoflow.com for more information. If you live elsewhere or aren't satisfied with the installation price, you can also go to our Facebook community and leave your question. There are many enthusiastic EcoFlow users who can help you.

Can I install the transfer switch myself?

Installation of the transfer switch should be done by a licensed electrician or a qualified professional.

Will it cause damage to EcoFlow Portable Power Stations when overloading in powering loads in the house?

EcoFlow Portable Power Stations have safety mechanisms to prevent overloads. And it's also crucial to exclude high-power appliances or circuits.

How long does the transfer switch, switch a load from utility power to backup power when load shedding occurs?

The transfer time is about 1 second. This transfer time may seem long, but it actually provides two important benefits. Firstly, it helps to prevent voltage surges that could otherwise harm your household appliances during sudden power fluctuations, which is crucial for protecting your appliances. Secondly, this transfer time is crucial for our products' longevity and safe operation.

What's the difference between Transfer Switch and Smart Home Panel?

a.Transfer Switch is divided into MTS and ATS, MTS is a manual switch, ATS is an automatic switch; SHP is an automatic smart switch, which can monitor the power consumption of each open circuit and control it remotely at the same time;Understand the situation of each line more accurately
b.Capacity difference: SHP has two ports and can be connected to 2 groups of DP (each group of DP can be connected to 2*DP EB); TS can be connected to a group of DP or a whole group of Power hub+LFP.
c.Different cables: SHP uses EF's unique Infinity cable (Delta Pro ONLY); TS uses Generator cord;
d. SHP can only connect to DELTA Pro, Transfer Switch can connect to all power stations (if power is satisfied).

Specs

Net Weight

Approx. 99lbs/45kg

Dimension

25*11.2*16.4 in/63.5*28.4*42cm

Capacity

3600Wh

Extra Battery

Support up to two DELTA Pro Smart Extra Battery/Smart Generator

AC Output

4 outlets, 230V/16A, 3600W total (Surge 7200W)

Max Device(s) Power Supported by X-Boost

4500W

USB-A Output

2 ports, 5V, 2.4A, 12W Max per port

USB-A Fast Charge

2 ports, 5V, 2.4A / 9V, 2A / 12V, 1.5A, 18W Max per port

USB-C Output

2 ports, 5/9/12/15/20V, 5A, 100W Max per port

Car Power Output

12.6V, 10A, 126W Max

DC5521 Output

2 ports, 12.6V, 3A, 38W Max per port

Anderson Port

12.6V, 30A

AC Charging Input

2900W Max, 230V~12.5A

Solar Charging Input

1600W Max, 11-150V, 15A

Car Charging Input

Support 12V/24V battery, 8A

Battery Chemistry

LFP

Cycle Life

6,500 cycles to 50% capacity, 3,500 cycles to 80% capacity

Connection

Wi-Fi, Bluetooth

Specs of Transfer Switch

Operation Mode

Auto/Manual

Poles

2P

Rated Current

63A

Transfer Time

1Sec

Electrical Life

1,500 times

Short-circuit switching (breaking) capacity

5kA

Phase

Single phase

Operating Frequency

50HZ/60HZ

Rated Voltage

AC 230V

Operating Temperature

-5℃~40℃

Mechanical Life

6,000 times

Short-circuit switching (making) capacity

7.65kA

*International version (2900W at 1.9 hrs) US version (1800W at 2.7 hrs/3000W at 1.8 hrs)

Please use the AC Charging Cable included in the package for fast charging. Do not use other cables to charge. Plug directly into an AC wall outlet and make sure that the wall output current is more than 15A. Otherwise, reduce the unit charging speed with the AC Charge Speed Switch. EcoFlow takes no responsibilities for any consequences caused by failures to follow instructions, including but not limited to charging with other AC charging cables.