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EcoFlow DELTA Pro Ultra X Inverter

By: EcoFlow SKU: EFDELTAPROUX-US IN STOCK
$3,799.00
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Description Shipping & Easy Returns Why Buy From Us

Ensure uninterrupted power for your entire home with the EcoFlow DELTA Pro Ultra X Inverter. Designed to deliver a robust 12-36kW output and scalable storage of 12-180kWh, this inverter provides dependable energy security during outages or off-grid living. Its streamlined plug-and-play installation can be completed in just 7 days, reducing both labor time and overall setup cost by up to 80%.

EcoFlow DELTA Pro Ultra X - Whole-Home Power. Unbound.

12-36kW Output

High Power. High IQ.

DELTA Pro Ultra X scales from 12 to 36kW. With a new Adaptive Start algorithm, it intelligently identifies connected appliances and tailors startup for each, seamlessly handling surges up to 45kW and high-demand appliances like a 5-ton AC.

Get Through Any Outage

Plug your generator into DELTA Pro Ultra X for seamless backup.

With the EcoFlow FlowMaster Generator Rectifier, you can charge while delivering up to 12kW output—no downtime, no compromise. Compatible with all major portable generators.

Take in 10kW solar input - enough to recharge 12kWh to 80% in just around 1 hour.

Even during storm season, enjoy a full daily recharge and steady, unshakeable energy.

The Fastest Installation: 7 Days, 3 Steps

DAY 1-2: Installer Match

After your installation order is placed, we'll match you with an EcoFlow Authorized Installer.

DAY 3-6: Site Visit
An Authorized Installer will schedule a visit to your home to assess your setup and plan installation.

DAY 7: One-Day Installation

Your Smart Home Panel 3 is wired, your EcoFlow app is synced, and your system is fully live. We provide end-to-end support—so your home is powered, connected, and protected from day one.

Energy That Can Move With You

DIY Solar + Plug-and-Play Batteries

Smart & Reliable When It Matters Most

Auto-Recharging · 20ms Auto Switchover · 32 Circuits · Intelligent Control

Before the Storm: Get Alerts

Storm Guard Mode sends real-time alerts through the app and can automatically charge your DELTA Pro Ultra X to 100% using solar or grid power.

When the Storm Hits: Lights Stay On

EcoFlow DELTA Pro Ultra X, paired with the Smart Home Panel 3 or Smart Gateway, switches your whole home from grid to battery power in under 20ms—faster than a blink. The lights stay on, Wi-Fi stays up, and even the game console keeps running. Zero delays. Zero disruptions.

During the Storm: Extended Backup Time

With Smart Home Panel 3, tag appliances by priority in the app. Essentials stay powered while non-essentials are throttled—extending backup time by up to 42%. EcoFlow AI Assistant fine-tunes power use in real time, adapting to weather, usage, and solar input.

Your 24/7 Money Saver

Here's a Typical Day of Savings

Day and night, the system intelligently shifts between solar, storage, and off-peak rates—maximizing every watt to get you the best deal. Here's what that might look like on a typical day of use.

Compatible with Existing Rooftop Solar - No Wasted Watts

With the EcoFlow Current Sense Transformer, every extra watt is redirected to your DELTA Pro Ultra X Smart Extra battery—never wasted or sold back to the grid for pennies.

The Highest Safety Standards

The first EV-grade full-tab cells deliver higher capacity with lower resistance, less heat, and longer-lasting performance. 25% More Efficient power flow (thanks to lower resistance: 1.5 mΩ vs. 2 mΩ) 25% Less Self-Heating

EV-grade full-tab cells

Perfectly matched cells ensure identical capacity, voltage, and resistance, minimizing wear and maximizing battery life. 24/7 Self-Maintenance: Automatic SOC balancing maximizes efficiency across the battery's entire lifespan.

Durable battery pack

Local BMS - X-Guard® System: 44+ safeguards and comprehensive monitoring ensures all-around safety. Safeguards: overcharge/discharge, extreme temperatures, short circuits, component failures, and more Cloud BMS - Big Data Protection: 100+ anomaly detectors run 24/7, with instant alerts, local service response, and remote emergency support.

Dual BMS Protection

Power Protection: 1.2M circuit samples/sec, millisecond-level anomaly detection for inverter and battery. Connection Monitoring: Intelligent cable and interface safeguards track heat, recognize faults, and allow instant shutdown for total electrical security. Load Isolation: Continuous voltage/current monitoring with triple-layer isolation. Faulty devices are cut off automatically while critical loads stay powered.

3-Level System Safety Architecture

Heats batteries in extreme cold for safe charging and longer runtime, while high-temp protection allows charging even at up to 45°C (113°F).

Smart Extreme-Weather Protection

Features

  • Complete home backup system delivering 12-36kW output with 12-180kWh expandable capacity
  • Plug-and-play architecture enables quick installation in only 7 days, cutting setup time and cost by up to 80%
  • Automatic 20ms transfer to backup power ensures uninterrupted operation during outages
  • Designed to help save up to $6,000 per year with an estimated ROI of 3 years
  • Equipped with top-tier, end-to-end safety protocols and the highest industry certifications

Specifications

General

  • Dimensions: Approx. 27 in x— 19 in x— 9 in
  • Net Weight: Approx. 76.06 lb
  • Ingress Protection: IP54
  • Display: LCD monitoring

Input

  • Power Input/Output Ports:
  • 100-120V 50/60Hz 1800W 15A (Cable 5-15P to 5P8)
  • 120/240V 50/60Hz 7200W 30A (Cable L14-30 to 5P8)
  • 120/240V 50/60Hz 12000W 50A (Cable J1772 to 5P8)
  • 120/240V 50/60Hz 12000W 50A (Cable 14-50 to 5P8)
  • 120/240V 50/60Hz 12000W 50A (Cable 5P8 to 5P8)
  • PV Input Ports (x—2): 80-500V⎓15A max, 5kW max per port (10kW total)

Output

  • AC Output Ports — Discharge only:
  • 120/240V 60Hz 12000W total
  • NEMA 5-20 (x—2): 120V 20A
  • NEMA L14-30 (x—1): 120/240V 30A
  • NEMA 14-50 (x—1): 120/240V 50A
  • Power Input/Output Port: 120/240V 60Hz 12000W 50A

Operating Environment

  • Operating Temperature: -4°F to 122°F
  • Note: Above 113°F (45°C), AC discharge power is reduced to 90%
  • Storage Temperature: -4°F to 122°F
  • Operating Humidity: <90%
  • Maximum Altitude: <3000m

Communication

  • Wi-Fi / Bluetooth

Warranty

Energy Systems Central Stores is an authorized retailer of EcoFlow products. Because of this, we pass on EcoFlow's manufacturer 5-Year warranty to you.

Key Specs

  • Power Rating: 12-36kW
  • Inverter Type: Hybrid
  • Input Voltage: 100-240V
  • Peak Efficiency: 45kW

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Yes. We provide free standard shipping on all orders shipped within the United States. Shipping costs are included in the listed price with no hidden fees at checkout.

Most orders are processed within 1 to 2 business days. Delivery times typically range from 3 to 7 business days depending on your location, carrier scheduling, and product size.

We offer a 30 day return window for eligible products that are unused and in original condition. Our support team will guide you through the return or exchange process if needed.

Absolutely. Yes. Our knowledgeable product specialists are available by phone, live chat, or email to help you select the right equipment for your application.

Most products include a manufacturer warranty, typically starting at one year. Warranty terms vary by brand and model and are listed on each product page.

Yes. We are an authorized retailer and only sell brand new, genuine products sourced directly from manufacturers or their approved distributors.

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EcoFlow DELTA Pro Ultra X Inverter

$3,799.00