Calculate Your Power Needs
Add the running wattage of the appliances you plan to power and check the startup surge of motors, pumps, refrigerators, and air conditioners. Choose an inverter with sufficient continuous and peak output.
Why Choose VolTrust Inverters
VolTrust off-grid solar inverters intelligently manage power from solar panels, batteries, utility input, and generators, delivering flexible energy control for off-grid solar, home backup, and utility-assisted power systems.
Hybrid Power Control
10ms Power Transfer
Pure Sine Wave
Advanced MPPT
Flexible Charge Modes
48V Battery Support
Parallel Expansion
Remote Monitoring
Inverter Protection
Hybrid Power Control
Manage solar, battery, utility input, and generator power through one integrated inverter system. VolTrust off-grid inverters coordinate available energy sources to power compatible loads without exporting electricity to the public grid.
10ms Power Transfer
A typical 10ms transfer time between utility bypass and inverter output helps minimize interruptions to compatible household and office equipment during a power outage.
Pure Sine Wave
Stable pure sine wave output provides clean AC power for compatible refrigerators, computers, televisions, pumps, air conditioners, and other everyday appliances.
Advanced MPPT
Advanced MPPT technology continuously tracks available sunlight to improve solar charging throughout the day. Selected VolTrust inverter models include dual MPPT inputs for more flexible solar array design.
Flexible Charge Modes
Choose from Solar Only, Utility Priority, Solar Priority, or combined Solar and Utility charging. Scheduled charging and discharging help adapt the system to different energy needs and electricity-rate periods.
48V Battery Support
VolTrust inverters support compatible 48V lithium and lead-acid batteries. Selected models also communicate with lithium battery BMS systems through RS485 or CAN.
Parallel Expansion
Selected parallel-capable models support connecting up to six compatible inverters, allowing the system to expand as household or commercial power requirements increase.
Remote Monitoring
View operating status, charging data, battery information, and fault alerts through the built-in display. Selected models also support Wi-Fi or GPRS remote monitoring.
Inverter Protection
Built-in protection helps manage overvoltage, undervoltage, overload, overcurrent, short circuit, reverse polarity, and excessive temperature for safer, more dependable system operation.
How to Choose the Right Hybrid Solar Inverter
Before choosing a VolTrust off-grid solar inverter, review your power requirements, output voltage, solar array, battery compatibility, backup goals, and future expansion plans. Use the six checks below to select the right inverter for an off-grid, battery backup, or utility-assisted power system.
Compare VolTrust Hybrid Inverters
Compare power, voltage, solar input, charging, and bypass capacity to find the right VolTrust off-grid inverter.
6.5kW Hybrid Inverter
View Product
7.2kW Hybrid Inverter
View Product
10kW Hybrid Inverter
View Product
12kW Hybrid Inverter
View Product
12kW Inverter with Bypass
View Product
6.2kW EU Hybrid Inverter
View Product
12kW EU Hybrid Inverter
View Product
Market
United States
United States
United States
United States
United States
Europe
Europe
Rated Output
6.5kW
7.2kW split phase / 6kW single phase
10kW split phase / 7.2kW single phase
12kW split phase / 7.2kW single phase
12kW split phase / 7.2kW single phase
6.2kW
12kW
AC Output
120V single phase
120/240V split phase
120/240V split phase
120/240V split phase
120/240V split phase
230V single phase
230V single phase
Peak Power
9.75kVA
10.8kVA
15kVA
18kVA
18kVA
12kVA
24kVA
Output Waveform
Pure sine wave
Pure sine wave
Pure sine wave
Pure sine wave
Pure sine wave
Pure sine wave
Pure sine wave
Battery System
48V (40-60V)
51.2V (40-58.6V)
51.2V (40-58.6V)
51.2V (40-58.6V)
51.2V (40-58.6V)
51.2V (40-60V)
51.2V (40-60V)
Maximum AC Charge
120A
120A
120A
160A
160A
80A
150A
Maximum PV Input
9kW (4.5+4.5kW)
9kW (4.5+4.5kW)
12kW / 18kW*
12kW / 18kW / 24kW*
24kW (12+12kW)
6.5kW
18kW (9+9kW)
MPPT Voltage Range
90-260V
90-450V
90-450V
90-450V
90-450V
90-450V
90-450V
Maximum PV Voc
300V
500V
500V
500V
500V
500V
500V
Maximum PV Charge
150A
150A
220A / 250A*
220A / 250A*
250A
100A
150A
Maximum Bypass Current
60A
50A/phase
60A/phase
60A/phase
200A/phase
40A
60A
Generator Support
Through AC input
Through AC input
Through AC input
Through AC input
Dedicated GEN input
Through AC input
Through AC input
Parallel Support
Up to 6 (P version)
Up to 6 (P version)
Up to 6 (P version)
Up to 6 (P version)
Up to 6 (P version)
Up to 6 (P version)
Up to 6 (P version)
Transfer Time
10ms typical
10ms typical
10ms typical
10ms typical
10ms typical
10ms typical
10ms typical
Maximum Output Efficiency
>91%
>93%
>92%
>91%
>91%
>94%
>94%
Communication
USB / RS485 / optional Wi-Fi or GPRS
USB / RS485 / optional Wi-Fi or GPRS
USB / RS485 / optional Wi-Fi or GPRS
USB / RS485 / optional Wi-Fi or GPRS
USB / RS485 / optional Wi-Fi or GPRS
USB / RS485 / optional Wi-Fi or GPRS
USB / RS485 / optional Wi-Fi or GPRS
Dimensions (L×W×D)
540×350×120mm
580×359×127mm
620×450×132mm
620×450×132mm
710×485×145mm
428×280×110mm
540×350×120mm
Weight
18.5kg
15.9kg
23.5kg
23.8kg
37.5kg
8.2kg
19.5kg
* PV input and charging limits vary by model version. Confirm the exact model suffix, electrical requirements, battery compatibility, and PV configuration before ordering. These products are intended for off-grid and backup applications and are not marketed for exporting electricity to the public grid.
Why Choose Voltrust Official
Member Rewards
Earn points through eligible purchases and selected activities, then redeem them for available coupons, accessories and member offers.
Local Warehouse
U.S. and Germany warehouse support for eligible orders. Local pickup or pickup discounts may be available where supported.
Warranty Support
Direct warranty and return support for eligible official orders. Our team helps review product issues, photos, videos, and order details.
Expert Guidance
Get help choosing the right battery for your application, including golf carts, 12V/36V batteries, energy storage, and accessories.
Official Offers
Access selected promotions, product launches, member discounts and seasonal offers from Voltrust.
Direct Service
Receive direct brand assistance before and after your purchase, from product questions to after-sales service.
FAQs
What size off-grid solar inverter do I need?
Add the continuous wattage of the appliances you plan to operate, then check the startup surge of motors, pumps, refrigerators and air conditioners. Choose a VolTrust off-grid solar inverter with sufficient continuous output, peak power and headroom for future loads.
What applications are VolTrust inverters designed for?
VolTrust inverters are designed for compatible off-grid solar systems, home battery backup, utility-assisted backup and generator-supported power systems. They are not intended or certified to export electricity to the public utility grid.
Can a VolTrust inverter connect to utility power?
Yes. Compatible models can use utility power for AC bypass and battery charging. Connecting utility power as an input does not make the unit a grid-tied inverter, and electricity must not be exported from the inverter to the public grid.
Will the inverter provide power during a grid outage?
When paired with a correctly sized battery and properly configured backup system, the inverter can supply compatible loads during a utility outage. Selected models specify a typical 10 ms transfer time between utility bypass and inverter output. Runtime depends on battery capacity and load.
Can the inverter operate without a battery?
Selected VolTrust models can power compatible loads from solar and utility input without a battery. A battery is still required for stored solar energy, nighttime off-grid operation and backup power when both solar and utility input are unavailable.
Which batteries are compatible with VolTrust inverters?
Selected VolTrust inverters support compatible 48V lithium and lead-acid battery systems. Confirm the battery voltage range, chemistry, charge and discharge current, BMS protocol and minimum battery capacity before installation.
Does the lithium battery need BMS communication?
BMS communication is recommended when the battery and inverter support a matching RS485 or CAN protocol. It helps coordinate charging, discharging and battery protection. If closed-loop communication is unavailable, all battery parameters must follow the battery manufacturer's requirements.
How do I match solar panels to the inverter?
Compare the solar array's open-circuit voltage, operating voltage, current and total wattage with the inverter's PV input and MPPT limits. Allow for temperature-related voltage changes and never exceed the inverter's maximum PV open-circuit voltage.
What is MPPT on a solar inverter?
MPPT, or Maximum Power Point Tracking, continuously adjusts the solar operating point to capture available energy as sunlight and panel temperature change. Selected VolTrust inverters include dual MPPT inputs for more flexible solar array layouts.
Do I need a 120V or 120/240V split-phase inverter?
Choose the output configuration that matches your electrical panel and intended loads. A 120V inverter supports compatible single-phase loads, while a 120/240V split-phase inverter is required for compatible 240V appliances and split-phase distribution systems.
Can I connect a generator to the inverter?
Selected models include a dedicated generator input and dry-contact control. Generator voltage, frequency and output capacity must meet the inverter requirements, and the charging current must be appropriate for both the generator and battery bank.
Can multiple VolTrust inverters be connected in parallel?
Selected parallel-capable models support up to six compatible inverters for increased output. Use matching models and firmware, and follow the manual requirements for parallel communication, current-sharing cables, AC wiring and battery connections.
What battery charging modes are available?
Selected models provide Solar Only, Utility Priority, Solar Priority and combined Solar plus Utility charging. Scheduled charging and discharging can help coordinate solar production, battery use and utility charging without exporting power to the grid.
Can I monitor the inverter remotely?
Selected VolTrust inverters support local display monitoring plus USB, RS485, Wi-Fi or optional GPRS communication. Available data may include solar charging, battery status, load power, operating mode and fault alerts.
How much battery capacity is needed for backup power?
Battery capacity depends on the wattage of essential loads and the required backup time. Estimate watt-hours by multiplying average load watts by operating hours, then allow for inverter losses, battery discharge limits, startup surges and a reserve margin.
What should I confirm before ordering an inverter?
Provide the utility input voltage and phase, continuous and peak loads, solar panel specifications, battery model and capacity, required backup time, generator information and expansion plans. A qualified installer should also confirm cable sizing, breakers, grounding and local electrical requirements.