Ecoflow DELTA Pro Ultra X Inverter

Name: Ecoflow DELTA Pro Ultra X Inverter
Brand: EcoFlow
SKU: EFDELTAPROUX-US
Price: 3799.0 USD
Availability: InStock

BY: EcoFlow

SKU: EFDELTAPROUX-US

| Availability: In stock

$3,999.00

$3,799.00

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Ecoflow DELTA Pro Ultra X Inverter

Experience next-generation home and off-grid power with the EcoFlow DELTA Pro Ultra X Inverter — a high-performance hybrid inverter designed for residential, commercial, and emergency backup systems. Delivering 12kW of AC output, scalable to 36kW with 3 units, this all-in-one powerhouse combines smart energy management, UPS functionality, and modular expandability.

Built with advanced LFP (LiFePO₄) chemistry and high-efficiency conversion, DELTA Pro Ultra X ensures long-lasting performance, seamless backup transitions, and reliable integration with EcoFlow smart accessories.

EcoFlow DELTA Pro Ultra X Inverter Features

Massive Power Output - Delivers 12kW of 120/240V AC power, scalable up to 36kW with three parallel inverters. Perfect for whole-home backup, high-demand appliances, and professional off-grid systems.

Smart Modular Expansion - Supports up to 61.4kWh storage with ten connected batteries or 184.32kWh with multiple inverters, giving complete flexibility for homes, RVs, or commercial setups.

Seamless UPS Function - Automatically transfers to battery power in under 10ms, ensuring uninterrupted operation for sensitive electronics and essential systems.

Durable LFP Chemistry - Built with LiFePO₄ battery technology for superior safety, long cycle life, and stable performance across thousands of charge cycles.

Intelligent System Control - Features a built-in display, smart monitoring through the EcoFlow app, and compatibility with the Smart Home Panel 3 for full grid-to-solar-to-battery automation.

EcoFlow DELTA Pro Ultra X Inverter Applications

Whole-home backup – Reliable energy during outages with scalable storage.
Off-grid systems – Designed for cabins, mobile homes, and remote installations.
Commercial power management – Supports light industrial loads and mission-critical applications.
RV and van systems – Ideal for extended travel or professional mobile setups.

What's Included

Everything you need is included with your product.

1 x Ecoflow Delta Pro Ultra X Inverter
1 x Ecoflow PV Switch Box
1 x Ecoflow Charging Cable
1 x Ecoflow Battery Connection Cable (2.465ft)

1 x Ecoflow Delta Pro Ultra / Ultra X Portable Stand
4 x Ecoflow Side Mount Caster
1 x Ecoflow Solar Panel MC4 Disconnect Tool
1 x User Manual & Warranty Card

Warranty

5 years Warranty

EcoFlow DELTA Pro Ultra X Inverter Specifications

Specification	Details
Standard Capacity	12.288kWh, 6144Wh x 2
AC Output	12kW, 120/240V, 60Hz \| Up to 36kW in 3 parallel units
Net Weight (lb)	Inverter: 34.5±0.2kg（70.06±0.44 lb) \| Battery: 50.5±0.2kg（111.3±0.44 lb）
Battery Chemistry	LFP
Screen	✓
AC Outlets	NEMA 5-20 (x2) 120V 20A \| NEMA L14-30 (x1) 120/240V 30A \| NEMA 14-50 (x1) 120/240V 50A
Rated AC Input Power	12kW,100/200-120/240V, 50A
Noise Level	Noise level <30 dB at 0.5 m (ambient temperature 25 °C, 4 kW output)
Battery Temperature	Operating&Storage temp: −4°F to 113°F (−20°C to 45°C)
Maximum Capacity with 1 inverter	61.440kWh, 6144Wh x 10
Maximum Capacity with 3 inverters	184.32kWh, 6144Wh x 30
Dimension (mm)	Inverter: 675 × 475 × 230 mm (26.6 × 18.7 × 9.06 in.) \| Battery：660 × 455 × 204 mm (26 × 18 × 8 in.)
Warranty	5 years
Extra Battery	✓
UPS	<10ms standalone, <20ms with Smart Home Panel 3
DC Input	Total 10kW, 2 ports \| 80-500V/15A, 5000W Max Each
IP Rating	IP54
Inverter Temperature	Operating&Storage temp: −4°F to 122°F (−20°C to 50°C)

Frequently Asked Questions

Can I expand my system for higher capacity?

Yes. You can connect up to 10 batteries per inverter and 3 inverters in parallel, supporting a total of 184.32kWh capacity.

Is the DELTA Pro Ultra X compatible with solar panels?

Yes. It supports a DC input of 80–500V/15A (5000W max each port) for direct solar charging.

Does it work with the EcoFlow Smart Home Panel 3?

Absolutely — it integrates seamlessly for automatic transfer between grid, battery, and solar sources.

What’s the UPS transfer time?

The DELTA Pro Ultra X delivers <10ms UPS switching, fast enough for computers and appliances to remain uninterrupted.

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I was a DIY solar power wannabe... that is 'til I connected with Manny... The man's a prince! He not only knows his stuff; he walked me through all things electrical. To make sure I had all I needed... he gave me his cell phone # to text him anytime I got confused... nights and weekends included. The prices were very competitive... definitely go with Manny -- you won't go wrong!

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I would personally like to thank Manny... I purchased the inverter and decided I needed to return it... Manny was very understanding and went out of his way to help me return the product and not even have to pay for shipping return. He gives this company reputation, honor and quality customer service!

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I have been talking with Manny the owner... He has not only helped me design a system but he's been assisting with the install and components. I am super pleased so far with the assistance.

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