Add to cart
Zero Breeze Mark 2 PLUS EXTRA (1 AC + 2 Batteries) Zero Breeze Mark 2 PLUS EXTRA (1 AC + 2 Batteries) $1,710.95
Growatt-11.4K-Split-Phase-Transformer-2 Growatt 11.4K Split Phase Transformer $482.95
growatt|SKU:1519099

Growatt 5kW Split Phase Transformer — 120/240V Conversion for Off-Grid Inverters

Reliable Split Phase Conversion for Your Off-Grid System

Elevate your off-grid power system with the Growatt 5kW Split Phase Transformer, the essential companion for seamless 120/240V output. Engineered for reliability, it delivers stable, split-phase power to run your home or small business with uncompromising performance. Trust in a premium solution that ensures your backup or off-grid setup operates with effortless precision and enduring dependability.

Built-in transformer — Eliminates external conversion hardware
5000VA split phase output — Powers 120V and 240V loads simultaneously
2500W imbalance tolerance — Handles uneven leg loading safely
Growatt inverter matched — Pre-vetted for direct compatibility
  • FREE System Design Consultation -- Our engineers confirm your compatibility before you buy
  • FREE Shipping -- Ships free to your door, no minimum order

$236.95

Add to Cart
4ecdb22e-2119-4247-ae80-3a47e2b00a8b__28052
Growatt 5kW Split Phase Transformer
$236.95

30-day money back · No restocking fee

🔒 100% Secure Checkout

Visa Mastercard American Express Apple Pay Google Pay Klarna Link by Stripe
Free Returns 30-day hassle-free returns.
Free Delivery Every order, every time.
Ships in 3–5 Days Heavy-duty crating included.
4.9/5 Stars 2,400+ verified reviews.

In the box

  • Growatt ATS 5000T-ES Split Phase Transformer
4ecdb22e-2119-4247-ae80-3a47e2b00a8b__28052
Growatt 5kW Split Phase Transformer — 120/240V Conversion for Off-Grid Inverters
$236.95

Reliable Split Phase Conversion for Your Off-Grid System

The Growatt ATS 5000T-ES delivers dependable split phase power for your off-grid setup by converting single-phase inverter output into the 120/240V your home requires. With a built-in transformer and 5000VA combined L1-N and L2-N output, this unit is field-tested for residential and small commercial applications where staying grid-independent matters. Pair it directly with Growatt off-grid inverters for straightforward installation. Note the maximum L1/L2 imbalance is 2500W — if your loads skew heavily to one leg, plan accordingly or add a second unit.

FREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORT
Built-In Transformer
5,000VA Output
Split Phase 120/240V
Growatt Compatible
5,000VA
Max Combined Output
2,500W
Max L1/L2 Imbalance
$236.95
Your Price
4ecdb22e-2119-4247-ae80-3a47e2b00a8b__28052

No More Incompatible Components in Your Power Chain

The number one reason off-grid systems fail isn't bad components — it's incompatible components. A single-phase inverter feeding a split-phase panel creates voltage problems that damage appliances and trip breakers. The Growatt ATS 5000T-ES eliminates that mismatch by converting your inverter output into stable 120/240V split phase power. At Off Grid Vault, every component we carry is pre-vetted for system compatibility. We don't sell random parts — we sell pieces that work together. This transformer is specced specifically for Growatt off-grid inverters, so you know the BMS communication, voltage thresholds, and pass-through efficiency are aligned. No guessing. No returns because "it didn't work with my inverter."

4ecdb22e-2119-4247-ae80-3a47e2b00a8b__28052

Real Specs That Let You Size Your System with Confidence

This transformer delivers a combined 5000VA across L1-N and L2-N simultaneously, giving you the split-phase output your well pump, refrigerator, and shop tools actually require. The rated maximum imbalance between L1 and L2 is 2500W — meaning you can run a heavier load on one leg while still maintaining stable voltage on the other. For example, a 1250W/3750W split between legs stays within spec. If your daily consumption demands push past that imbalance threshold, adding a second unit keeps your system balanced and safe. These are real numbers, not peak marketing specs — exactly the kind of transparency that lets you size your system with confidence before you buy.

4ecdb22e-2119-4247-ae80-3a47e2b00a8b__28052

Off-Grid Proven Architecture That Runs Without the Utility

Off-grid proven means it holds up when the grid is gone for days, not hours. The ATS 5000T-ES is built as a permanent installation component — not a portable box you drag out during storms. Its compact form factor fits into standard electrical enclosures, and the built-in transformer design means fewer external connections, fewer failure points, and cleaner wiring in your power room. Pair it with your Growatt off-grid inverter and you have a grid-independent split-phase architecture that runs your home whether the sun is shining or the utility has been down for a week. This is the kind of component that disappears into your system and just works — year after year.

Compatibility Check

Confirm this transformer matches your inverter and load requirements before ordering.

  • Paired with a Growatt off-grid inverter
  • Combined L1-N and L2-N load does not exceed 5,000VA
  • L1/L2 load imbalance stays within 2,500W

Where This Transformer Fits

Designed for setups that need true split phase output from a single-phase inverter source.

Off-Grid Cabin
Homestead Power
Small Commercial Backup

Full Specifications

At a glance

Dimensions
See product page
Warranty
See product page
Full specifications7 data points across 4 categories

Dimensions

DimensionsSee product page

Power & Performance

ModelATS 5000T-ES
Max Combined L1-N + L2-N Output5,000VA
Max L1/L2 Imbalance2,500W
TypeBuilt-in transformer with ATS-ES

Materials

ConstructionSee product page

Compliance & Warranty

WarrantySee product page

The Off Grid Vault Promise

We stand behind every product we sell — because your off-grid system has to work when you need it most.

30-Day Performance GuaranteeIf it doesn't perform as specified, we make it right. Uninstalled returns accepted within 30 days in original packaging.
Free ShippingShips free to your door — no minimums, no thresholds, no surprise freight charges.
Free System Design ConsultationOur engineers size your system for your actual consumption — no guesswork, no incompatible components.
★★★★★
“Running a Growatt 48V system on my homestead and needed split phase for the well pump and dryer. This transformer was the missing piece. Installed it myself in about an hour — L1 and L2 balanced, 240V confirmed at the panel with my multimeter. No voltage drift under load. Off Grid Vault confirmed my compatibility before I ordered, which I appreciated. Straightforward component that does exactly what the specs say.”
F
First L.Prescott, AZ

Growatt 5kW Split Phase Transformer | ATS 5000T-ES

Unlock the full potential of your off-grid or backup power system with the Growatt 5kW Split Phase Transformer (ATS 5000T-ES). Expertly engineered to pair seamlessly with Growatt off-grid inverters, this premium accessory delivers stable, reliable split-phase power—essential for powering standard 120/240V residential and small commercial appliances. Compact, efficient, and built for consistent performance, the ATS 5000T-ES ensures your critical loads remain operational, whether you are living off-grid or seeking a dependable backup solution. Upgrade your energy infrastructure with a transformer that guarantees smooth operation and long-term peace of mind.

Key Features

  • Integrated Split-Phase Capability: The ATS 5000T-ES comes with a built-in transformer, enabling your Growatt inverter to output true 120/240V split-phase power for standard household and business electrical panels.
  • Optimized Power Distribution: Designed for maximum efficiency, the unit supports a combined L1-N and L2-N simultaneous output of up to 5000VA, ensuring balanced power delivery to both legs of your electrical system.
  • Managed Load Balancing: Engineered with a clear operational limit, the maximum imbalance between L1 and L2 is 2500W (e.g., 1250W on L1 and 3750W on L2). For installations requiring higher imbalance or greater total capacity, we recommend purchasing two units.
  • Compact & Durable Build: Designed for hassle-free installation, this transformer offers a space-saving footprint without sacrificing the rugged reliability required for demanding off-grid and backup power environments.

Specifications

  • Model: Growatt ATS 5000T-ES
  • Type: Split Phase Transformer
  • Maximum Simultaneous Output (L1-N + L2-N): 5000VA
  • Maximum Imbalance (L1/L2): 2500W
  • Compatibility: Designed for use with Growatt off-grid inverters
  • Application: Residential & Small Commercial Off-Grid / Backup Power
  • Price: $236.95

Why Choose Growatt 5kW Split Phase Transformer

When building a reliable energy system, component compatibility and power quality are non-negotiable. The Growatt 5kW Split Phase Transformer is more than just an accessory; it is the critical bridge that enables your Growatt inverter to deliver true, code-compatible split-phase power. Unlike generic solutions, this transformer is purpose-built by Growatt to ensure seamless integration, zero configuration hassles, and maximum system efficiency. Whether you are powering a remote cabin, a home workshop, or a small business, the ATS 5000T-ES provides the stable voltage and clean power your sensitive electronics demand. Backed by Growatt’s reputation for innovation and durability, and protected by our Lowest Price Guarantee, this transformer offers premium performance at an accessible price point. Invest in the component that ensures your power system operates at its best—choose the Growatt ATS 5000T-ES.

Your Satisfaction with Growatt is Guaranteed: Lowest Price Guarantee included.

Reviews

There are no reviews yet.

Be the first to review “Growatt 5kW Split Phase Transformer — 120/240V Conversion for Off-Grid Inverters”

Your email address will not be published. Required fields are marked *

Frequently Asked Questions

The Growatt 5kW Split Phase Transformer (ATS 5000T-ES) is designed as an accessory to pair with Growatt off-grid inverters. It includes a built-in transformer and is intended for installation by a qualified electrician or experienced DIYer familiar with electrical systems. No detailed assembly instructions are provided in the product data, so professional setup is recommended to ensure safe and correct wiring for split-phase power.
The ATS 5000T-ES is designed specifically for Growatt off-grid inverters to provide split-phase power. It has a maximum simultaneous output of 5000VA across L1-N and L2-N. The maximum imbalance between L1 and L2 is 2500W (e.g., 1250W on one leg and 3750W on the other). If your load exceeds these limits, the product data recommends purchasing two units.
The Growatt 5kW Split Phase Transformer does not contain batteries; it is a transformer accessory with a built-in transformer for converting single-phase inverter output to split-phase 120/240V power. The product data lists no specific materials beyond the integrated transformer, and no battery-related specs are provided. It is a passive component designed for power conversion, not energy storage.
The product data does not include specific maintenance instructions for the ATS 5000T-ES. As a transformer with no moving parts or batteries, routine maintenance typically involves periodic visual inspections for damage, dust, or loose connections, and ensuring proper ventilation. For detailed care, consult a qualified electrician or refer to Growatt’s official documentation, which is not included in the provided data.
The product data only mentions a Lowest Price Guarantee for your satisfaction. No specific return policy, warranty terms, or shipping promises are provided. For details on returns, support, or warranty coverage, please contact the store directly or review the store’s standard policies. The data does not specify any return window, warranty duration, or support process for this item.
This transformer is ideal for residential or small commercial users with a Growatt off-grid inverter who need stable split-phase 120/240V power for appliances or backup systems. It is not for whole-home setups exceeding 5000VA total or 2500W per leg imbalance, as the data recommends two units for higher loads. It suits DIY enthusiasts or professionals seeking a compact, reliable power conversion solution.
SKU: 1519099 Categories: , Brand:

The Off Grid Vault Promise

We stand behind every product we sell — because your off-grid system has to work when you need it most.

30-Day Performance Guarantee If it doesn't perform as specified, we make it right. Uninstalled returns accepted within 30 days in original packaging.
Free Shipping Ships free to your door — no minimums, no thresholds, no surprise freight charges.
Free System Design Consultation Our engineers size your system for your actual consumption — no guesswork, no incompatible components.

Related products

About growatt Solar Panels

growatt is a trusted manufacturer of premium solar panels. OffGridVault is an authorized dealer offering the full growatt lineup with free delivery, price match guarantee, and expert support.

View all growatt products →

Related Categories

AC/DC Enclosure 2 products Air Handlers 8 products Air Heaters 2 products Amp Hub 2 products Awnings 15 products Batteries 3 products
Join the Grill Island Community

Expert Picks, Straight to Your Inbox

No spam. Just the gear worth knowing about.

No spam. Unsubscribe anytime.