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Ecoflow DELTA Pro Ultra X Inverter

Ecoflow DELTA Pro Ultra X Inverter

BY: EcoFlow | SKU: EFDELTAPROUX-US Availability: In Stock
$3,999.00
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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.

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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.

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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.
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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
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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.