Ruixu SUNON 7.2K Off-Grid Solar Kit | 7.2kW 120/240V | 4.8–5.6kW Solar | 15.36–16.07kWh Battery

Price range: $6,819.99 through $7,957.86

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A solar kit built around the Ruixu SUNON7.2 all-in-one off-grid inverter.

  • 7.2 kW continuous 120/240V split-phase output
  • Solar: 12 × 400W panels (4.8 kW DC) or 14 × 400W panels (5.6 kW DC)
  • Storage: 15.36 kWh (3 × 5.12 kWh Rack-Mount) or 16.07 kWh (1 × 16.07 kWh Wall/Floor-Mount) Ruixu LiFePO4
  • Optional Tigo rapid shutdown or Tigo optimizers
  • Grid-connected backup, no export

Racking sold separately.

SKU: WEB-PARENT-RUIXU-SUNON-7-2K-SOLAR-KIT Categories: , , Brand:

Off-Grid · Generator-Ready

Ruixu SUNON 7.2K Off-Grid Solar Kit | 7.2kW 120/240V | 4.8–5.6kW Solar | 15.36–16.07kWh Battery

This kit is built around the Ruixu SUNON7.2 all-in-one off-grid inverter, delivering 7.2 kW of continuous 120/240V split-phase output, paired with 12 × 400W panels (4.8 kW DC) or 14 × 400W panels (5.6 kW DC) and 15.36 kWh (3 × 5.12 kWh Rack-Mount) or 16.07 kWh (1 × 16.07 kWh Wall/Floor-Mount) of storage.

At a Glance
  • 7.2 kW continuous AC output, 120/240V split-phase
  • Surge capacity up to 10.8 kW for motor starting
  • Solar array: 12 × 400W panels (4.8 kW DC) or 14 × 400W panels (5.6 kW DC)
  • Battery options: 15.36 kWh (3 × 5.12 kWh Rack-Mount) or 16.07 kWh (1 × 16.07 kWh Wall/Floor-Mount) (Ruixu LiFePO4)
  • Grid-connected backup, no export
  • Optional Tigo rapid shutdown or Tigo optimizers + rapid shutdown

Choose Your Configuration

Solar Array 12 panels (4.8 kW DC), 14 panels (5.6 kW DC), 400W each
Battery Storage 15.36 kWh (3 × 5.12 kWh Rack-Mount)
16.07 kWh (1 × 16.07 kWh Wall/Floor-Mount)
Rack-Mount batteries install in a battery rack or cabinet; Wall/Floor-Mount batteries mount on a wall or stand on the floor.
Rapid Shutdown None: includes PV disconnects
Tigo Rapid Shutdown: TS4-A-F on every panel
Tigo Optimizers + Rapid Shutdown: TS4-A-O on every panel plus Tigo CCA monitoring kit

Options are offered in specific combinations; available combinations are shown in the selector above.

Rapid Shutdown or Optimizers?

None (PV disconnects) Best for ground-mounted arrays or other installations where module-level rapid shutdown isn’t required. Includes PV disconnects.
Tigo Rapid Shutdown Required for most roof-mounted arrays on buildings (NEC 690.12). A TS4-A-F on each panel drops the array to a safe voltage within seconds when the system is shut off, protecting firefighters and service crews.
Tigo Optimizers + Rapid Shutdown Everything rapid shutdown does, plus panel-level optimization and monitoring. Each TS4-A-O lets panels work independently, so shade, soiling or panels on different roof planes don’t drag down the whole string, and the Tigo CCA shows each panel’s output.

Rapid shutdown requirements depend on the code adopted by your jurisdiction; confirm with your AHJ.

Estimated Annual Solar Production

Phoenix, Arizona ~8,200 (12P) · ~9,500 (14P) kWh/year
Chicago, Illinois ~6,000 (12P) · ~7,100 (14P) kWh/year

Planning estimates for an unshaded, south-facing array at about 30° tilt with typical losses. Actual production varies with location, orientation, tilt, shading, weather and equipment. Use a site-specific model before purchase.

System Overview

The kit pairs the inverter with an array sized to refill the battery on an average day (3.5 peak sun hours) and a battery bank that can deliver the inverter’s full output. It connects to the grid for charging and backup but does not export power.

Ideal Applications

  • Outage backup for the essentials: refrigerator, lights, internet and outlets
  • Extended-stay off-grid cabins

What’s Included

  • One Ruixu SUNON7.2 all-in-one off-grid inverter
  • ALEX-400 400W solar panels (count per configuration)
  • Ruixu LiFePO4 (battery configurations), with mounting and battery cabling
  • MC4 connector pairs and 10 AWG PV wire (black and red)
  • PV disconnects (one per two strings) on configurations without rapid shutdown
  • Tigo options: TS4-A-F rapid shutdown devices, or TS4-A-O optimizers with a Tigo CCA kit (plus Tigo TAPs on larger arrays)
Installation note: Racking is sold separately. Site-specific wire and conduit, breakers, service and interconnection equipment, and permitting materials may be required. Utility and AHJ requirements vary; final design must follow manufacturer instructions and applicable code.
Weight N/A
Dimensions 72 × 48 × 54 in
Brand

Inverter Platform

Ruixu SUNON 7.2K

Inverter Quantity

Single

Continuous Output

7.2 kW

Inverter Size (KW)

5KW-10KW

Output (V)

120V/240V

Grid Connection

Grid-Connected Backup (No Export)

Generator Compatible

Yes

Inverter Type

All-in-one Inverter

Solar Capacity (DC)

0KW-5KW, 5KW-10KW

Battery Capacity (KWH)

10KWH-20KWH

Solar Array

12 Panels (4.8 kW), 14 Panels (5.6 kW)

Battery Storage

15.36 kWh, 16.07 kWh

Rapid Shutdown

None, Tigo Optimizers + Rapid Shutdown, Tigo Rapid Shutdown

What Can It Power?

Built around the Ruixu SUNON7.2, an all-in-one off-grid inverter for cabins and smaller homes, this kit delivers 7.2 kW of continuous 120/240V split-phase output. Every size uses the same inverter configuration: larger options add solar and battery runtime, while the inverter output stays the same.

7.2 kW
Continuous output, 120/240V split-phase
10.8 kW
Surge for motor starting
15.36–16.07 kWh
Battery storage options
4.8–5.6 kW
Solar array (400W panels)
What you can run
Everyday essentials

0.5–1.5 kW

Refrigerator and freezer, LED lights, ceiling fans, phone and laptop charging, modem, router and TV. These small and cycling loads are the starting point for long outage coverage.

Kitchen, laundry & larger loads

1.5–5 kW each

Microwave, coffee maker, washer or dishwasher as needed. An electric water heater, dryer, oven or range can use a large share of the output, so stagger them instead of running them together.

Small motors & mini-splits

Check starting current

A small mini-split, fan or small pump may run if its starting current fits. Large HVAC, well pumps and shop compressors usually need a larger system.

Illustrative operating mixes
Refrigerator/freezer, LED lights, internet, TV and fans0.5–1.5 kW
Essentials + microwave or coffee maker2–3.5 kW while it runs
Essentials + a smaller inverter mini-split1.5–3 kW
Essentials + a 4.5 kW electric water heater5–6 kW while heating
Plan around the limits
Add up the loads that run at the same time and allow for motor starts. For a 7.2 kW split-phase system, keep loads balanced across the two 120V legs: a heavily loaded leg can reach its limit before the total does. A larger battery adds runtime but doesn’t raise the inverter’s output. Examples are planning illustrations, not guaranteed appliance packages.

How Long Will It Run?

Battery size sets how much energy you have. These battery-only estimates use 80% of nominal storage delivered to loads (12.29 kWh from 15.36 kWh, 12.86 kWh from 16.07 kWh).

0.5 kW · Lean essentials / light overnight use
15.36 kWh

24.6 hrs

16.07 kWh

25.7 hrs

1 kW · Essentials with more appliance use
15.36 kWh

12.3 hrs

16.07 kWh

12.9 hrs

2 kW · Moderate household use
15.36 kWh

6.1 hrs

16.07 kWh

6.4 hrs

3.6 kW · Heavy sustained use
15.36 kWh

3.4 hrs

16.07 kWh

3.6 hrs

4 kW · Higher sustained use
15.36 kWh

3.1 hrs

16.07 kWh

3.2 hrs

7.2 kW · Full rated output
15.36 kWh

1.7 hrs

16.07 kWh

1.8 hrs

Runtime = usable battery energy ÷ average load, starting full, with no solar, grid or generator. Average load includes cycling: a 1 kW appliance running half the time averages about 0.5 kW. Actual results depend on settings, battery condition, temperature and system consumption.

At 12 kWh per day
1.0 days on 15.36 kWh, 1.1 days on 16.07 kWh
At 24 kWh per day
0.5 days on 15.36 kWh, 0.5 days on 16.07 kWh

Cooling, heating and electric water heating can change daily totals substantially.

What Does Solar Add?

Solar powers daytime loads and recharges the battery with what’s left.

12 panels · 4.8 kW DC
≈ 13 kWh / day
≈ 4,900 kWh / year
14 panels · 5.6 kW DC
≈ 16 kWh / day
≈ 5,700 kWh / year

Illustration: 3.5 peak sun hours × array rating × 80% system yield, rounded. Not a location-specific forecast. Household use draws from this energy too, so not all of it refills the battery. Shading, winter and cloudy days can sharply reduce production.

When Solar Isn’t Enough

Utility or generator available
The inverter can charge the batteries and pass loads through from the grid or a generator when solar is low. It does not export to the utility.
Grid outage: solar + battery
The system supplies only the circuits connected to its backup output, from solar and stored energy. Plan for the 7.2 kW output limit, battery discharge limits and motor starts, and shed large loads to extend runtime. A properly configured compatible generator can carry extended low-sun periods (not included).

Why This System?

The Ruixu SUNON 7.2K Off-Grid Solar Kit is built around the Ruixu SUNON7.2, an all-in-one off-grid inverter for cabins and smaller homes. Match the configuration to your daily energy use, the loads that run together and your installation.

7.2 kW for a useful mix of loads

120/240V split-phase output runs common household circuits and compatible 240V equipment. Manage what runs together and check motor starts for HVAC, pumps or shop tools.

Two MPPT inputs

4.5 kW per input for flexible string layout.

Motor capacity

10.8 kVA peak output and 4 HP motor capacity.

Stackable

Up to 6 units in parallel for larger systems.

Matched as a system

The battery bank can deliver the inverter’s full output, the array is sized to recharge the battery, and strings are laid out within the inverter’s limits.

Choose Your Size

12 panels · 4.8 kW DC solar · 12.29 kWh usable
15.36 kWh

Our smallest storage option on this platform: everyday loads and overnight coverage.

14 panels · 5.6 kW DC solar · 12.86 kWh usable
16.07 kWh

The most storage on this platform: longer outages and higher daily use.

Only the combinations shown in the product selector are offered. Every option uses the same Ruixu SUNON7.2 configuration.

Choose the Right Panel Electronics

None
Best for

Ground-mounted arrays and other installs where module-level rapid shutdown isn’t required. Includes PV disconnects.

Tigo Rapid Shutdown
Best for

Most roof-mounted arrays on buildings, where code requires module-level shutdown (NEC 690.12).

Tigo Optimizers + Rapid Shutdown
Best for

Rapid shutdown plus panel-level optimization and monitoring. Helps with mismatch from partial shade or different roof planes; it can’t recover sunlight lost to shade.

Plan the system around your site
This platform doesn’t sell excess power back to the utility. Racking, site-specific electrical materials and installation are additional. A fully off-grid property needs enough solar, storage and generator support for its loads.

Reference: Ruixu SUNON7.2 manufacturer information.

Frequently Asked Questions

Does this kit include batteries?
Yes: 15.36 kWh (3 × 5.12 kWh Rack-Mount) or 16.07 kWh (1 × 16.07 kWh Wall/Floor-Mount) of Ruixu LiFePO4, per the option you choose.
Will it power my home during an outage?
Yes, for the circuits connected to its backup output (or the whole home with a whole-home interface).
What is the solar array size?
12 × 400W panels (4.8 kW DC) or 14 × 400W panels (5.6 kW DC).
What output does it provide?
7.2 kW continuous at 120/240V split-phase.
Can I sell excess solar to the utility?
No. This system does not export power to the grid.
Can I connect a generator?
Yes. Use an inverter-style generator (3–5% THD) with 2-wire auto-start for automatic control. Generator not included.
What is the difference between the rapid shutdown options?
None includes PV disconnects. Tigo Rapid Shutdown adds a TS4-A-F to every panel. Tigo Optimizers + Rapid Shutdown adds a TS4-A-O to every panel plus a Tigo CCA kit for panel-level monitoring. Your AHJ may require rapid shutdown for roof-mounted arrays.
Is racking included?
No. Roof or ground-mount racking is site-specific and sold separately.
Are all breakers, wire and conduit included?
Not necessarily. Site-specific wire, conduit, breakers, service upgrades and interconnection hardware may be required.
How much does weather matter?
Solar production drops in cloudy or winter weather; plan on a generator or grid charging for long low-sun periods.
Do I need permits or utility approval?
Most installations need permits and inspections, and grid-connected systems need utility interconnection approval. Requirements vary by location.
Can this be installed DIY?
That depends on your jurisdiction and utility. Electrical work must follow manufacturer instructions, adopted code and any licensing requirements.
How do I know which configuration is right for me?
Use our kit selector, or contact SanTan Solar to match the system to your loads, usage and runtime needs.
Still have questions?

Contact SanTan Solar for help matching the system to your project.

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