VolTrust 12kW 120/240V Split-Phase Hybrid Inverter
[Split Phase Power] - Power compatible 120V and 240V appliances with 12kW of combined split-phase pure sine wave output. The system supports everyday loads and higher-demand appliances within its running and startup limits.
[Dual MPPT Tracking] - Two independent MPPTs support 12,000W + 12,000W maximum PV input and 32A per input. The MPPT range is 90–450V, with 500V maximum PV open-circuit voltage. Rated AC output is 12kW.
[Advanced Protection] - Integrated safeguards include overvoltage, undervoltage, overload, output short-circuit, overtemperature, and PV reverse-polarity protection for everyday system operation.
[Built To Expand] - The enclosure measures 24.41 × 17.72 × 5.20 inches and weighs 52.47 lb. The 500XP version supports up to six compatible units in parallel for off-grid expansion.
[Flexible System Connections] - Bring together solar panels, compatible battery storage, utility or generator AC input, and backup loads. The optional CT configuration supports self-consumption and anti-feed-in control.
[Home Backup Power] - Pair the inverter with compatible battery storage for household backup, with a typical 10ms transfer between bypass and inverter operation. Size the system for simultaneous loads, appliance starting demand, and required runtime.
[Package Overview] - Pictured accessories include a Wi-Fi module, two CT sensors, a parallel communication cable, dust filters, documents, and mounting hardware. Confirm the included accessories for your selected package.
[Smart Energy Monitoring] - Use a compatible Wi-Fi module and supported monitoring service to view energy flow, battery status, household consumption, and energy reports from your phone.
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Services & Benefits
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View shipping policy30-Day Return Window
Eligible items may be returned within 30 days of delivery with prior approval from VolTrust. Products must be unused, uninstalled, and returned in their original condition with all packaging, accessories, manuals, and proof of purchase. Return shipping is the customer's responsibility unless the return is due to a confirmed VolTrust error or verified product issue.
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Eligible in-stock orders ship from our NJ warehouse. Most orders are processed within 1–3 business days and typically arrive within 3–8 business days after shipment. Delivery times are estimates and may vary by destination, carrier schedule, weather, and freight requirements.
View delivery details2-Year Warranty
This VolTrust inverter is backed by a 2-year limited warranty covering verified defects in materials or workmanship under normal use. Warranty eligibility and available remedies are subject to the product condition, proof of purchase, installation details, and technical review.
View warranty policyOrders placed on weekends will be processed the following business day.
Smart Energy Monitoring
View energy flow, battery status, household consumption, and energy reports from your phone using a compatible Wi-Fi module and monitoring service.
Dual MPPT Tracking
Track two solar arrays independently with up to 12,000W per MPPT, 32A per input, and a 500V maximum PV open-circuit voltage.
Split Phase Power
Power compatible 120V essentials and 240V appliances with 12kW of combined split-phase pure sine wave output.
Advanced Protection
Built-in safeguards cover overvoltage, undervoltage, overload, output short circuits, overheating, and PV reverse polarity.
Home Backup Power
Build a 12kW home backup system for essential circuits and compatible 240V appliances, sized to your battery capacity and simultaneous loads.
System Connection Overview
See how solar panels, battery storage, AC input, CT sensors, and backup loads fit together in a typical system layout.
Built To Expand
Plan your installation around a 24.41 × 17.72 × 5.20-inch enclosure and 52.47 lb weight, with support for up to six compatible XP units in parallel.
Package Overview
Explore the inverter and pictured accessories, including a Wi-Fi module, two CT sensors, a parallel communication cable, filters, and mounting hardware.
Product Documents
FAQs
Can it power 120V and 240V appliances at the same time?
Yes. The VolTrust V-US-12kW supplies 120/240V split-phase pure sine wave power for compatible household loads. Its 12kW rating is the combined output, not 12kW on each 120V leg. The manual separately lists 7.2kW in single-phase mode; this is not a confirmed per-leg rating in split-phase mode. Size and distribute circuits within the applicable output limits.
Can it back up my home and run air conditioning, a well pump, or an EV charger?
It can support these applications when the complete system is correctly sized. The inverter provides 12kW continuous split-phase output and lists 18kVA peak power. Check the combined running load, motor starting demand, and battery discharge capability. High-demand appliances may need to run at different times; the 12kW rating does not mean every appliance can run simultaneously.
Which batteries are compatible, and does BMS communication matter?
The inverter supports compatible lithium batteries and 48V lead-acid battery banks. The specification table lists 51.2V nominal battery input, a 40–58.6V operating range, and a 44V minimum starting voltage. For lithium batteries, use a manufacturer-confirmed battery model with the correct BMS protocol, communication cable, and settings. Matching voltage alone does not establish compatibility.
How many batteries do I need, and how long will backup power last?
Size the battery bank for both usable energy in kWh and continuous and peak discharge current. At 51.2V, supplying 12kW requires about 234A before inverter losses, so a single battery with a 100A BMS cannot supply full rated output on its own. As a planning example, 10kWh of usable stored energy ÷ a 2kW average load = 5 hours before conversion losses and inverter consumption. Actual runtime will be lower without solar contribution.
How many solar panels can I connect?
For the GES48120M250-500XP configuration, the manual lists two independent MPPTs, up to 12,000W per MPPT, and 32A per input. The MPPT range is 90–450V, with a 500V maximum PV open-circuit voltage. Panel count depends on each panel’s voltage and current, string layout, and cold-weather open-circuit voltage. The 24kW total PV input allowance does not increase the 12kW AC output rating.
What happens during a power outage? Can it work without batteries?
With compatible battery storage and correctly connected backup circuits, the inverter can supply backup loads when utility power fails. The manual lists a typical 10ms transfer time between bypass and inverter operation. It also supports solar and utility operation without a battery, but this provides no stored energy for an outage. For dependable outage backup, include a battery bank sized for the loads and required runtime.
Can I use a generator to power loads and charge batteries?
Yes. The manual supports a compatible generator connected to the AC input to supply loads and charge batteries. For a 120/240V split-phase installation, match the generator output to the required input configuration. The generator must cover the intended load plus charging demand. Utility and generator sources share the AC-input connection and require appropriate source selection; this is not a separate dedicated generator port.
Can solar and utility power charge the batteries together?
Yes. Available charging modes include Solar Only, Utility Priority, Solar Priority, and Solar + Utility. For the M250-500XP configuration, maximum AC charging is 160A, maximum PV charging is 250A, and combined charging is limited to 250A total. These limits are not additive. Set charging current to the lower limit supported by the inverter, battery bank, and BMS.
Can it use solar power without sending surplus energy to the grid?
The manual describes CT-based anti-feed-in and self-consumption operation. It also identifies CT sensing as an optional configuration, so confirm that your unit has this function and the matching sensors. The system uses two CT sensors for the two split-phase lines. Correct configuration and commissioning are required; anti-feed-in control is not a promise of zero transient export or utility approval.
Does it include a 200A whole-home bypass?
No. The standard GES48120M250-500XP does not include a 200A bypass. The 500XP-Plus is a separate version with that feature. A 200A service panel does not mean this standard inverter can pass through 200A. Plan the supported load panel and bypass arrangement around the ratings of the exact inverter supplied.
Can I expand the system with additional inverters?
Yes. The GES48120M250-500XP supports up to six compatible units in parallel. Use matching units, suitable battery capacity, and the required parallel communication connections. The non-parallel 500X version does not provide this feature. The manual limits this parallel function to off-grid applications and warns that the corresponding grid-connection approval is not provided.
Can I monitor solar production and battery status from my phone?
Yes, with a compatible Wi-Fi module, supported monitoring service, and network connection. The pictured app shows energy flow, battery status, household consumption, device management, and energy reports. Available functions depend on the connected hardware and software. A Wi-Fi module is shown in the package image; confirm that it is included in your selected package.
Where can it be installed, and will the cooling fans be audible?
Choose a dry, well-ventilated location with a sturdy, non-combustible mounting surface and the clearances required by the manual. Do not treat the outdoor lifestyle image as a weatherproof installation rating. The unit measures 24.41 × 17.72 × 5.20 inches and weighs 52.47 lb. It uses variable-speed fans, and the manual lists noise of ≤60dB. The operating range is 14–131°F, with power derating above 113°F.
What protections are built in?
Built-in functions include overvoltage, undervoltage, overload, output short-circuit, overtemperature, and PV reverse-polarity protection. The reverse-polarity protection shown refers to the solar input; a reversed battery connection can blow the inverter’s internal fuse. Built-in safeguards work alongside the external disconnects and protective devices specified for the installation.
What is included in the package?
The package image shows the inverter, product manual, inspection certificate, service card, Wi-Fi module, parallel communication cable, dust filters, two CT sensors, and mounting hardware. Included accessories depend on the selected package. Check the final accessory list for your configuration before ordering.
Can I schedule charging and discharging for different times of day?
Yes. The manual supports scheduled battery charging and discharging periods, allowing operation to be planned around solar availability and your electricity tariff. Available settings must be matched to the selected operating mode, battery limits, and backup reserve. Actual savings depend on your tariff, usage, solar production, and battery losses.
Can I connect an existing microinverter or grid-tied solar system to it?
The supplied manual describes DC solar strings connected to the MPPT inputs. It does not establish support for AC-coupling an existing microinverter or grid-tied inverter to the backup output. Do not assume that an existing AC solar system will charge the battery or keep running during an outage. Obtain a manufacturer-confirmed system design for that application.
Is this model approved for selling electricity back to the grid?
The product manual explicitly warns that the corresponding grid-connection approval is not provided. Its references to UL1741 and CSA C22.2 No. 107.1 do not, by themselves, establish utility-export approval for this exact unit. This model should be planned as a backup/off-grid solution. If you need net metering or utility export, choose equipment with verified approval for your intended installation.