Ecoflow DELTA Pro Ultra X Inverter
Ecoflow DELTA Pro Ultra X Inverter
SKU: EFDELTAPROUX-US
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- Price: $3,799.00
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- List Price: $3,999.00
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PRODUCT DESCRIPTION
Description
Unleash Whole-Home Power with the EcoFlow DELTA Pro Ultra X Inverter

The EcoFlow DELTA Pro Ultra X Inverter is the ultimate solution for powering your entire home, RV, or off-grid setup with efficiency and reliability. Designed for serious energy independence, this inverter provides seamless transition between grid, solar, and battery power. Whether you’re preparing for outages, building a solar-powered home system, or managing heavy-duty loads, the DELTA Pro Ultra X Inverter delivers unmatched performance, safety, and scalability.
Features and Benefits:
- Massive Power Output: Delivers up to 7200W AC output per unit, capable of running heavy-duty appliances or an entire home system.
- Flexible Energy Options: Supports solar, battery, and generator inputs for complete energy control.
- Smart Energy Management: Integrated with the EcoFlow app for real-time monitoring, remote control, and automatic energy optimization.
- Seamless Backup Power: Instantly switches between grid and backup modes to keep your home running during outages.
- Expandable System: Combine multiple units for up to 21.6kW output and large-scale energy storage configurations.
- Pure Sine Wave Output: Ensures clean, stable power for sensitive electronics and appliances.
The EcoFlow DELTA Pro Ultra X delivers powerful performance from 12 to 36kW. Thanks to its smart Adaptive Start feature, it recognizes your appliances and customizes the startup process, smoothly managing surges up to 45kW and handling heavy-duty equipment like a 5-ton air conditioner with ease.

Get Through Any Outage

Power that goes wherever you do with easy DIY solar and plug-and-play battery options.

Get set up quickly with installation that takes just 7 days and only 3 simple steps.

Installed in just 7 days, this wide-body inverter and battery operate as a standalone off-grid unit—no wall mounting needed
Its flexible design makes getting approval faster and easier than traditional grid-tied systems. Plus, the exclusive quick-connect lets you effortlessly plug and play with the Smart Home Panel 3 or Smart Gateway.

Specifications
| Specification | Details |
|---|---|
| Model | EcoFlow DELTA Pro Ultra X Inverter |
| Standard Capacity | 12.288kWh (6144Wh x 2) |
| Max Capacity (1 Inverter) | 61.440kWh (6144Wh x 10) |
| Max Capacity (3 Inverters) | 184.32kWh (6144Wh x 30) |
| AC Output | 12kW, 120/240V, 60Hz |
| Max Parallel Output | Up to 36kW (3 Units) |
| Rated AC Input Power | 12kW, 100/200–120/240V, 50A |
| PV Input | Total 10kW (2 Ports, 80–500V/15A, 5000W Max Each) |
| UPS Transfer Time | <10ms Standalone / <20ms with Smart Home Panel 3 |
| Battery Chemistry | LFP (Lithium Iron Phosphate) |
| Battery Capacity | 6144Wh (per battery module) |
| Noise Level | <30 dB at 0.5m (4kW Output) |
| IP Rating | IP54 |
| Battery Operating Temp | -4°F to 113°F (-20°C to 45°C) |
| Inverter Operating Temp | -4°F to 122°F (-20°C to 50°C) |
| Weight (Inverter) | 70.06 ±0.44 lb (34.5 ±0.2 kg) |
| Weight (Battery) | 111.3 ±0.44 lb (50.5 ±0.2 kg) |
| Dimensions (Inverter) | 26.6 × 18.7 × 9.06 in (675 × 475 × 230 mm) |
| Dimensions (Battery) | 26 × 18 × 8 in (660 × 455 × 204 mm) |
| AC Outlets | NEMA 5-20 (x2), NEMA L14-30 (x1), NEMA 14-50 (x1) |
| Screen | Yes |
| Expandable Battery Support | Yes |
| Warranty | 5 Years |
What's in the Box

FAQs
1. How much power can the EcoFlow DELTA Pro Ultra X Inverter handle?
It delivers 12kW of continuous AC output and can reach up to 36kW when three units are connected in parallel.
2. How scalable is the EcoFlow DELTA Pro Ultra X Inverter system?
Each inverter supports up to 10 batteries (61.44kWh), and three inverters can combine for a total of 184.32kWh of storage capacity.
3. What type of batteries does it use?
The system uses advanced LFP (Lithium Iron Phosphate) batteries for maximum safety, efficiency, and lifespan.
4. Can I use this system for solar power?
Yes. It supports up to 10kW of solar input via two 5,000W PV ports, making it ideal for off-grid or hybrid solar setups.
5. How fast does it switch during a power outage?
It features ultra-fast UPS switching in under 10 milliseconds standalone or under 20 milliseconds with a Smart Home Panel 3.
6. Is the EcoFlow DELTA Pro Ultra X Inverter weatherproof?
Yes. With an IP54 rating, it’s resistant to dust and splashes, suitable for both indoor and outdoor installation.
7. How loud is it during operation?
It runs nearly silent, producing less than 30 decibels at 0.5 meters, even at a 4kW output load.
8. What’s the warranty coverage?
The EcoFlow DELTA Pro Ultra X Inverter comes with a 5-year manufacturer’s warranty for peace of mind and long-term reliability.

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