As a professional manufacturer, KTAC provides comprehensive customization services for the GA Series. The GA Series 12kW inverter is widely used in residential solar storage, emergency backup, and complete off-grid applications. Designed for reliable standalone operation, it adopts a rugged industrial enclosure with a detachable dust cover, ensuring long-term performance in harsh environments. This model does not support parallel connection; it is optimized for single-unit systems requiring stable, high-power output.
The 12KW 48V Off Grid Solar Inverter features true sine wave output and high surge capacity (24kVA for 20ms), allowing it to reliably start motor-driven appliances such as air conditioners, pumps, and compressors. The built-in MPPT solar charger operates over a wide voltage range (120–450VDC) with a maximum PV open circuit voltage of 500VDC, extracting maximum power from solar panels under varying weather conditions.
Dual AC output function enables priority supply to critical loads (e.g., refrigerators, lights) while shedding non-essential loads during battery mode, extending backup runtime. The inverter supports 48V lithium (LiFePO₄) or lead-acid batteries, with automatic lithium battery activation and BMS communication (CAN/RS485) for real-time battery monitoring. Built-in WiFi and a mobile app allow convenient system monitoring from anywhere.
Two independent AC output channels – one for critical loads (always powered) and one for non-critical loads (sheddable). Maximizes battery runtime during power outages.
Rated at 12kW continuous, 24kVA surge for 20ms. Reliably starts motor-driven appliances such as compressors, pumps, and air conditioners.
Built-in MPPT controller with voltage range 120–450VDC, max PV open circuit voltage 500VDC, and max PV input power 11kW. Achieves over 99% tracking efficiency.
Supports 48V lithium (LiFePO₄) or lead-acid batteries. Lithium battery activation wakes up sleeping battery packs. BMS communication (CAN/RS485) provides real-time battery status and protection.
This model is designed for single-unit use only. 12KW 48V Off Grid Solar Inverter does not support parallel connection, ensuring simple installation and stable system operation without the complexity of paralleling.
Built-in WiFi module and mobile app allow real-time monitoring of solar generation, battery SOC, load consumption, and system alerts. Optional external meter supports generator auto-start.
Removable front cover protects air intakes from dust and debris, extending product life in agricultural or workshop environments.
| Model | GA-12048 |
|
Parameter |
Value |
|
ACInput |
|
|
Voltage Range(VAC) |
90~280V±3(normal mode), 170~280V±3(UPS mode) |
|
RatedInput Voltage(VAC) |
208V/ 220V/ 230V/ 240V, L+N+PE |
|
Frequency(Hz) |
50/60Hz(Auto Adaptive) |
|
AC Output |
|
|
Rated Capacity(W) |
12000 W |
|
Surge power(VA) |
24000VA |
|
Voltage(VAC) |
208V/220V/230V/240V |
|
Power Factor(PF) |
1 |
|
Frequency |
50/60Hz±0.1% |
|
Swith Time(ms) |
10(APP/UPS mode)/ 20(GEN mode) |
|
Wave Form |
Pure Sine Wave |
|
Overload Capacity (Battery Mode) |
60s@102%~125%load,10s@>125% load |
|
Max. Efficiency(Battery Mode) |
94%@48VDC |
|
Charger( PV / AC ) |
|
|
Solar Charger Type |
Dual MPPTs |
|
Max. PV Input current / Input Power |
22.5*2A/15000W |
|
MPPT Range@Operating Voltage |
60~450V |
|
Max. PV Open Circuit Voltage |
500V |
|
Max. PV Charge Current(A) |
160A |
|
Max. AC Charge Current(A) |
160A |
|
Max. Charge Current (PV+AC) (A) |
160A |
|
Battery |
|
|
Rated Voltage(VDC) |
48V |
|
Floating Charge Voltage(VDC) |
54V |
|
Overcharge Protection(VDC) |
61V |
|
Battery Type |
Lithium and Lead-acid |
|
Interface |
|
|
HMI |
LCD |
|
Interface |
RS232/RS485/CAN |
|
Monitoring |
WiFi |
|
General Data |
|
|
Ingress Protection |
IP21 |
|
Operating Temperature |
-15°C ~ 60°C |
|
Relative humidity |
5%~95%(Non-condensing) |
|
Storage Temperature |
-15°C ~ 60°C |
|
Max. Operating Altitude |
4000m(Derating above 1000m) |
|
Net weight(kg) |
15kg |
|
Dimensions(H*W*D)(mm) |
495*425*120mm |
1.Household solar storage system：Stores excess PV energy for daily self-consumption, reducing electricity bills and providing backup during grid outages.
2.Emergency backup power：Keeps essential appliances (refrigerator, lights, internet router) running during unexpected blackouts.
3.Off-grid sites：Ideal for remote cabins, farms, telecommunication base stations, and rural clinics where grid access is unavailable.
4.Small commercial projects：Suitable for powering small workshops, retail shops, or community facilities as a standalone unit.
KTAC offers flexible OEM/ODM options for the GA Series inverter to meet diverse project and brand requirements.
Custom housing colors and permanent logo printing (screen printing or laser engraving) available for brand differentiation.
CAN/RS485 protocols pre-matched to third-party lithium batteries for plug-and-play integration.
Charge voltages, output frequency (50/60Hz), and charging priority logic pre-set per project specifications.
Custom box design with branded artwork and multilingual user manuals (English, French, Spanish, Arabic, Russian, etc.).
Typical lead time for custom orders: 10 to 15 days.
KTAC stands behind every GA Series inverter with clear, practical support policies designed for worry-free ownership.
2 years for general-purpose models, covering manufacturing defects and performance issues under normal use.
3 years available for selected heavy-duty models (please inquire with our sales team for eligibility).
All after-sales inquiries are acknowledged within 48 hours via email or WhatsApp.
Commonly replaced components are kept in stock for fast dispatch to minimize system downtime.
Video call guidance provided for first-time setup and troubleshooting, reducing on-site service costs.
Warranty terms vary by model. Please contact us to confirm coverage for your specific unit.
The GA Series is designed for off-grid use. It does not feed energy back into the utility grid. It can accept grid or generator input as a backup source to charge batteries and power loads via bypass.
With a max PV open circuit voltage of 500 VDC and MPPT range of 120-450 VDC, typical string configurations of 4 to 8 high-voltage panels (e.g., 8×650 Wp in series) are supported. Total PV input power should not exceed 15 kW.
Yes. The inverter can activate a sleeping lithium battery (with BMS protection triggered by over-discharge) by applying a small pre-charge current.
No. The battery type must be set consistently for either lead-acid or lithium. Mixed chemistry is not recommended.
Depending on local electricity prices and solar irradiance, the payback period for a self-consumption residential system is typically 3-5 years.
The inverter is equipped with a built-in WiFi module port. Customers can choose to add a WiFi module. Connect it to the home router and register it on the KTAC cloud platform. Then, you can view real-time data and receive alerts through the mobile application.
Address
No. 82, Xiaotang Gongye Avenue, Shishan Town, Nanhai District, Foshan City, Guangdong Province, China
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