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

Reliable Split Phase Conversion for Your Off-Grid System

Unlock true split-phase capability for your off-grid system with the premium Growatt 5kW Split Phase Transformer. Engineered for seamless integration with Growatt inverters, it delivers rock-solid, balanced power for your home or small business. Elevate your backup or off-grid setup with a solution built for unwavering reliability and effortless performance.

Built-in transformer design — No external transformer needed for installation
5000VA combined output — Handles L1-N and L2-N simultaneously
Pairs with Growatt inverters — Engineered for off-grid inverter compatibility
Compact form factor — Fits tight spaces in small setups
  • FREE System Design Consultation -- Our engineers size your system for your actual consumption
  • FREE Shipping -- Ships free, including LTL freight on large orders
  • Compatibility Guarantee -- Pre-vetted to work with Growatt off-grid inverters

$236.95

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Growatt 5kW Split Phase Transformer
$236.95

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In the box

  • Growatt ATS 5000T-ES Split Phase Transformer
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Growatt 5kW Split Phase Transformer — 120/240V Off-Grid Power Conversion
$236.95

Reliable Split Phase Conversion for Your Off-Grid System

The Growatt ATS 5000T-ES split phase transformer converts your off-grid inverter output into stable 120/240V split phase power for your home or cabin. With a built-in transformer and 5000VA maximum combined output across L1-N and L2-N, this field-tested unit handles real residential loads without compromise. Note the maximum imbalance between L1 and L2 is 2500W — if your loads regularly exceed that split, consider running two units. A straightforward, grid-independent accessory built for any Growatt off-grid inverter setup.

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Built-In Transformer
5000VA Max Output
Growatt Compatible
Split Phase 120/240V
5kW
Rated Capacity
5000VA
Max L1+L2 Combined
2500W
Max Leg Imbalance
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No Guesswork With Your Inverter Pairing

When you build an off-grid system, every component has to speak the same language. The wrong transformer means voltage mismatches, imbalance faults, and a system that sits idle when you need it most. The Growatt ATS 5000T-ES is engineered specifically for Growatt off-grid inverters — no mix-and-match risk, no hoping it works. At Off Grid Vault, we vet every component for real compatibility before it earns a spot in our catalog. This transformer converts your inverter output into clean 120/240V split phase power that runs your well pump, refrigerator, and shop tools simultaneously. The built-in transformer eliminates the need for external add-ons, keeping your install clean and your system off-grid proven.

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5000VA Output For Real-World Loads

The ATS 5000T-ES delivers a combined L1-N and L2-N output of 5000VA — enough to run standard household circuits on both legs of your split phase panel. The maximum imbalance between L1 and L2 is 2500W, meaning you can run a heavier load on one leg while maintaining stable power on the other. For most cabins and small homesteads, that covers your refrigerator, lighting, well pump, and communications equipment without issue. If your daily consumption demands exceed the 2500W imbalance threshold, you can parallel two units. This is honest, spec-driven capacity — not a peak number you will never see in practice.

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Compact Build For Space-Constrained Installs

Not every off-grid setup has a dedicated mechanical room. The ATS 5000T-ES integrates the transformer directly into the unit, removing the need for a separate external transformer and reducing your footprint at the breaker panel. For cabin builds, tiny homes, and backup power closets where every inch matters, that integrated design simplifies your wiring layout and cuts install time. The unit supports flexible off-grid or backup power configurations, so whether you are going fully grid-independent or building a resilience system that activates when the utility drops, this transformer adapts to your architecture without rewiring.

Compatibility Check

Make sure this transformer matches your system before ordering.

  • Paired with a compatible Growatt off-grid inverter
  • Combined L1-N and L2-N load does not exceed 5000VA
  • Imbalance between L1 and L2 legs stays within 2500W

Where This Transformer Belongs

Designed for residential and small commercial off-grid setups that need true split phase output.

Cabin & Homestead Power
Backup Power Systems
Small Commercial Off-Grid

Full specifications

At a glance

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

Power & Performance

Rated Capacity5kW
Max L1-N + L2-N Simultaneous Output5000VA
Max L1/L2 Imbalance2500W
Built-In TransformerYes

Dimensions

DimensionsSee product page

Materials

ConstructionSee product page

Compliance & Warranty

WarrantySee product page

The Off Grid Vault Promise

We stand behind every product we sell — because off-grid equipment has to work when the grid doesn't.

Free ShippingShips free to your door — no minimums, no fine print.
30-Day Performance GuaranteeIf it doesn't perform as specified, we make it right — uninstalled, in original packaging.
Authorized DealerWarranty claims handled through us — no ticket queues, no runaround.
★★★★★
“I needed split phase for my cabin's 120/240V panel but didn't want to piece together a transformer separately. The ATS 5000T-ES dropped right in with my Growatt inverter — clean install, no compatibility headaches. Running my well pump and fridge simultaneously with no imbalance faults. Off Grid Vault answered my pre-purchase questions about load balancing within an hour. Exactly what I needed.”
F
First L.Prescott, AZ

Growatt 5kW Split Phase Transformer (ATS 5000T-ES)

Price: $236.95

Unlock the full potential of your off-grid or backup power system with the Growatt 5kW Split Phase Transformer (ATS 5000T-ES). Designed as a premium accessory for Growatt off-grid inverters, this compact yet powerful transformer delivers stable split-phase power, ensuring your residential or small commercial setup operates with seamless reliability. Whether you’re managing a remote cabin, a backup power solution, or a renewable energy system, the ATS 5000T-ES provides the efficiency and flexibility you need to keep your critical loads running smoothly—without compromise.

Key Features

  • Built-In Transformer Integration: The ATS-ES comes with a dedicated internal transformer, simplifying installation and ensuring direct compatibility with Growatt off-grid inverters for hassle-free setup.
  • Robust Split-Phase Output: Delivers a maximum simultaneous output of 5,000VA (sum of L1-N and L2-N), providing ample power for common household and commercial appliances.
  • Balanced Load Management: Supports a maximum imbalance of 2,500W between L1 and L2 (e.g., 1,250W on L1 and 3,750W on L2), allowing for flexible load distribution. For systems exceeding this threshold, we recommend purchasing two units to maintain optimal performance.
  • Efficient & Compact Design: Engineered for space-conscious installations, this transformer offers reliable power conversion without occupying excessive room in your equipment setup.
  • Dependable Backup Power: Ideal for off-grid and backup applications, ensuring consistent split-phase voltage for sensitive electronics and heavy-duty loads alike.

Specifications

  • Model: ATS 5000T-ES
  • Type: Split Phase Transformer
  • Maximum Sum of L1-N and L2-N Simultaneous Output: 5,000VA
  • Maximum Imbalance Between L1 and L2: 2,500W (e.g., 1,250W on L1 and 3,750W on L2)
  • Compatibility: Designed for use with Growatt off-grid inverters
  • Application: Residential and small commercial off-grid or backup power systems

Why Choose Growatt 5kW Split Phase Transformer

When building a reliable off-grid or backup power system, every component must earn its place. The Growatt 5kW Split Phase Transformer stands out as a premium solution for those who demand precision and durability. Its seamless integration with Growatt inverters eliminates compatibility concerns, while the built-in transformer reduces installation complexity—saving you time and effort. The 5,000VA capacity and balanced load management ensure your system can handle real-world demands, from powering a home office to running essential circuits during an outage.

Backed by Growatt’s reputation for quality and our Lowest Price Guarantee, you can invest with confidence. Whether you’re a renewable energy enthusiast or a professional installer, this transformer delivers the split-phase stability your setup requires. Choose the Growatt ATS 5000T-ES and experience premium performance at an accessible price point.

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Frequently Asked Questions

The Growatt 5kW Split Phase Transformer ships as a compact, pre-assembled unit. No assembly is needed—just mount and connect to your compatible Growatt off-grid inverter. For specific shipping options or costs, please refer to our checkout page.
This transformer is designed specifically for Growatt off-grid inverters to provide split phase power. It supports a maximum combined L1-N and L2-N output of 5000VA, with an imbalance limit of 2500W per leg (e.g., 1250W on L1 and 3750W on L2). For loads exceeding this, consider purchasing two units.
The ATS 5000T-ES is a transformer accessory, not a battery. It contains a built-in transformer for voltage conversion and does not store energy. For battery storage, pair it with a compatible Growatt inverter and separate battery bank.
Minimal maintenance is needed. Periodically inspect connections and ensure the unit is kept clean, dry, and free from debris. As a passive component, the transformer requires no routine servicing beyond standard electrical safety checks.
We offer a Lowest Price Guarantee on this Growatt transformer. For returns and support, contact our team directly. Specific warranty terms are not provided in the product data, so please reach out for details before purchase.
This transformer is ideal for residential or small commercial setups needing stable split phase power from a Growatt off-grid inverter. It suits backup power, off-grid solar systems, or any application requiring 120/240V output with balanced load management.
SKU: 1519099 Categories: , Brand:

The Off Grid Vault Promise

We stand behind every product we sell — because off-grid equipment has to work when the grid doesn't.

Free Shipping Ships free to your door — no minimums, no fine print.
30-Day Performance Guarantee If it doesn't perform as specified, we make it right — uninstalled, in original packaging.
Authorized Dealer Warranty claims handled through us — no ticket queues, no runaround.

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