KTAC TECHNOLOGY, as a professional Power Inverter manufacturer and supplier in China with over 20 years of power supply manufacturing experience, provides comprehensive off-grid hybrid solar inverter solutions for global residential backup power, remote area electrification, RV and marine applications, as well as small commercial energy systems. Our off-grid Solar Inverter lineup covers diversified power specifications from 1.2kW to 12kW, spanning 12V, 24V, and 48V battery voltage platforms to meet every user's needs—from weekend campers to off-grid homesteaders.
All KTAC Off Grid Solar Inverters adopt pure sine wave output technology, built-in high-efficiency MPPT solar chargers, intelligent dual AC output management, and wide compatibility with both lithium (LiFePO₄) and lead-acid battery systems. Strictly certified with CE and ROHS, and supporting optional WiFi remote monitoring via mobile APP, our inverters serve as reliable, cost-effective, and scalable power conversion equipment for modern energy-independent living.
An off grid Solar Inverter, also known as a stand-alone solar inverter or off-grid hybrid inverter, is the central component of any independent power system that operates without connection to the public electricity grid. Unlike grid-tied inverters which shut down during power outages for safety reasons, an off-grid inverter draws DC power from a battery bank—charged by solar panels via an integrated MPPT charger—and converts it into stable AC power for your home, cabin, farm, or business. It is the essential bridge between the renewable energy you generate and the electricity you actually use.
KTAC's off-grid inverters integrate three core functions into a single compact unit: a pure sine wave inverter, an MPPT solar charge controller, and an AC battery charger. This all-in-one design dramatically reduces system wiring complexity, installation space, and overall cost compared to building a system from separate components. With UPS-grade switching times as fast as 10ms, our inverters can seamlessly transition between grid power and battery power during outages, ensuring that critical loads remain operational without interruption.
Selecting the ideal off-grid inverter for your specific application requires careful consideration of several key factors:
1. Power Requirements – Calculate your total continuous load and peak surge demands. For basic camping loads like LED lighting, phone charging, and a small cooler, the GA-1212 (1.2kW, 3.5kg) is perfectly sufficient. For a remote cabin with a refrigerator, TV, and water pump, the GA-3624 (3.6kW) or GA-5024 (5kW) would be more appropriate. For whole-home backup or small commercial applications, our GA-6548 (6.5kW), GA-12048 (12kW), or GPEO series (6kW-12kW with parallel capability) deliver the necessary capacity.
2. Battery Voltage – Off-grid inverters are available in 12V, 24V, and 48V configurations. 12V systems like the GA-1212 and GA-2012 are ideal for entry-level setups using automotive or RV batteries where low cost and easy availability are priorities. 24V systems like the GA-3624 and GA-5024 offer better efficiency for medium-sized installations and are compatible with most vehicle electrical systems. 48V systems like the GA-6548, GA-12048, and GPEO series are the industry standard for serious off-grid homes and commercial applications, delivering higher efficiency (up to 94% or 99.9%) and supporting larger solar arrays.
3. Solar Charging Capability – Look for built-in MPPT solar chargers with wide voltage ranges. Our entry-level GA-1212 features a 17-115V MPPT range ideal for 1-2 panels, while mid-range models like the GA-3624 and GA-5024 offer 40-450V or 60-450V ranges supporting 3-8 panels. High-power models like the GA-6548, GA-12048, and GPEO series feature 60-450V or 85-450V MPPT ranges with maximum PV open circuit voltages up to 500V, accommodating professional-grade solar arrays. MPPT technology extracts 20-30% more energy from solar panels compared to PWM controllers, especially during cloudy conditions.
4. Surge Capacity – Motors, compressors, and refrigerators draw significantly more power during startup (typically 3-7 times their running power). Our inverters offer generous surge ratings: GA-1212 delivers 2400VA, GA-2012 delivers 4000VA, GA-3624 delivers 5700VA, GA-5024 delivers 10,000VA, GA-6548 delivers 12,000VA, GA-12048 delivers 24,000VA, and GPEO-12KL1 delivers 24,000VA. This ensures reliable startup of demanding appliances without overload tripping.
5. Expandability – If you anticipate growing your system, consider parallel-capable models like the GPEO series, which supports up to 12 units in parallel for total power up to 144kW and can also form 380V three-phase systems with 3 or more units.
All KTAC off-grid inverters deliver pure sine wave AC output with low harmonic distortion (THDv < 3%), identical to utility grid power. This ensures compatibility with all types of loads—from sensitive electronics like computers, medical devices, and audio equipment to inductive loads like refrigerators, air conditioners, water pumps, and power tools. Unlike modified sine wave inverters that can cause performance issues, overheating, or even damage to certain devices, our pure sine wave technology guarantees safe and efficient operation of everything you connect.
The GA series is renowned for its exceptional portability. The GA-1212 weighs just 3.5kg—lighter than a gaming console—and measures 301×217×97mm. The GA-2012 weighs 4.5kg with a slim 100mm profile, the GA-3624 weighs 6.2kg, and the GA-5024 weighs 8.4kg. Even the powerful GPEO-6KL1 weighs only 12.4kg and is just 12cm thick—allowing single-person installation in RVs, boats, cabins, and tight spaces where traditional heavy inverters simply cannot go.
Our off-grid inverters achieve industry-leading conversion efficiencies: GA-1212 reaches 90% at 12VDC, GA-2012 reaches 91%, GA-3624 reaches 92.7%, GA-5024 reaches 93.5%, GA-6548 and GA-12048 achieve 94% at 48VDC, and the GPEO series peaks at 98% efficiency with 99.9% MPPT tracking. Every percentage point of efficiency translates into more usable power from your solar investment and longer battery runtime during outages.
Different models accommodate different solar array configurations to match your specific site conditions:
GA-1212 (12V): MPPT range 17-115V, max PV input 800W, ideal for 1-2 panels
GA-2012 (12V): MPPT range 30-400V, max PV input 3000W, supports 2-4 panels
GA-3624 (24V): MPPT range 40-450V, max PV input 5000W, supports 3-8 panels
GA-5024 (24V): MPPT range 60-450V, max PV input 9000W, dual MPPT
GA-6548 (48V): MPPT range 60-450V, max PV input 9000W
GA-12048 (48V): MPPT range 60-450V, max PV input 15000W, dual MPPT
GPEO-6KL1 (48V): MPPT range 85-450V, max PV input 8000W
GPEO-12KL1 (48V): MPPT range 85-450V, max PV input 16000W, dual MPPT with 27A each
Many of our off-grid inverters feature two independent AC output channels: one for critical loads that must remain powered at all times (refrigerators, internet routers, medical equipment), and another for non-essential loads that can be automatically shed during battery discharge. This intelligent feature maximizes battery runtime during outages by disconnecting less important appliances when power is limited, ensuring your essential devices stay operational as long as possible.
Our inverters support both lithium (LiFePO₄) and lead-acid batteries across all voltage platforms. With built-in CAN, RS485, and RS232 communication interfaces, they integrate seamlessly with lithium battery BMS systems for real-time monitoring, adaptive charging, and cell balancing. All models feature lithium battery activation to wake up sleeping battery packs that have entered protection mode due to over-discharge—no additional equipment required.
Select models feature built-in WiFi module ports or optional WiFi connectivity, enabling remote monitoring via KTAC mobile APP. Users can view real-time PV generation, battery SOC, load consumption, and receive system alerts from anywhere in the world—an invaluable feature for off-grid properties, vacation cabins, and unattended installations. The LCD display on every model provides intuitive access to operating parameters, charge currents, and system status.
In UPS mode, all KTAC off-grid inverters switch from grid power to battery power within just 10ms—fast enough that computers, routers, TVs, and other sensitive electronics will not restart or experience any perceptible interruption. This makes our inverters ideal for home backup power and business-critical applications where even momentary power loss is unacceptable.
All GA series models feature a removable front dust cover that protects internal components and cooling air intakes from dust, debris, and insects. This practical design extends product life in demanding environments such as farms, workshops, garages, and RVs where dust accumulation is a common concern.
Entry-Level Portable Solution (GA-1212 / 1.2kW / 12V): Ultra-lightweight at just 3.5kg, this compact unit is perfect for weekend camping, emergency home backup, student dormitories, and DIY solar learning projects. It powers LED lighting, phone chargers, small coolers, laptops, and aquarium pumps with 2400VA surge capacity. With a 17-115V MPPT range and 800W PV input, it's the ideal "mini power station" for beginners.
Lightweight Mobile Solution (GA-2012 / 2kW / 12V): Weighing only 4.5kg with a slim 100mm profile, this model is designed for RVs, vans, and small cabins. Supporting up to 3000W PV input with a 30-400V MPPT range and 100A charging current (150A combined), it delivers 4000VA surge power for reliable startup of small refrigerators and power tools.
Mid-Range Whole-Cabin Solution (GA-3624 / 3.6kW / 24V): At just 6.2kg, this model powers RV air conditioners (1HP), refrigerators, lighting, TVs, and small water pumps simultaneously. The 24V battery system leverages existing vehicle generators for convenient charging. With a 40-450V MPPT range and 5000W PV input, it's ideal for campervans, fishing boats, and compact off-grid homes.
High-Power Standalone Solution (GA-5024 / 5kW / 24V): With 160A maximum charging current and 10,000VA surge capacity, this unit reliably starts 1.5HP air conditioners and deep-well pumps. The dual MPPT design with 60-450V range and 9000W PV input supports larger solar arrays, making it perfect for small farms, rural clinics, retail shops, and communication base stations.
Professional 48V System Solution (GA-6548 / 6.5kW / 48V): Achieving 94% peak efficiency with 12,000VA surge capacity, this model delivers stable 6.5kW output. Featuring a wide MPPT range (60-450V) and 9000W PV input, it serves as the ideal core for serious off-grid homes and small commercial installations.
High-Capacity Standalone Solution (GA-12048 / 12kW / 48V): This powerful unit delivers 12kW continuous output with 24,000VA surge capacity—enough to run an entire household or small business. With dual MPPT, 15,000W PV input, 160A charging current, and built-in WiFi monitoring, it's designed for single-unit high-power off-grid applications.
Expandable Commercial-Grade Solution (GPEO series / 6kW-12kW / 48V): These flagship models support up to 12 units in parallel (72kW-144kW total) and can form 380V three-phase systems with 3+ units. With IP54 protection, 98% peak efficiency, and 99.9% MPPT tracking, they are engineered for scalable off-grid systems from large villas to small factories.
Parallel Scalability (GPEO Series): The GPEO series supports single-phase parallel connection of up to 12 units, enabling power expansion from 6kW to 144kW without replacing existing equipment. This future-proof design accommodates growing energy needs as solar arrays expand, appliances multiply, or household occupancy increases.
Three-Phase Configuration: Three or more GPEO units can be configured as a 380V three-phase system (18kW-144kW total), directly powering three-phase motors, industrial pumps, air compressors, and workshop machinery—ideal for agricultural irrigation and light manufacturing applications. The 10ms switching time ensures uninterrupted operation across all phases.
Battery Bank Flexibility: The GA series supports various battery bank sizes, from 50Ah automotive batteries for entry-level setups to 300Ah+ deep-cycle banks for whole-home systems. The wide charging current range (50A-160A) ensures rapid battery replenishment regardless of bank size.
Residential Backup Power: During grid outages, our inverters with UPS mode switch to battery power within 10ms, keeping lighting, refrigeration, internet connectivity, and essential home appliances operational without interruption. The GA-1212 and GA-2012 are perfect for apartment dwellers, while the GA-6548 and GA-12048 serve whole-home backup needs.
RV, Marine & Mobile Power: Lightweight models weighing just 3.5kg-8.4kg are perfectly suited for installation in campervans, boats, and work vehicles—delivering 220V AC power for onboard appliances, navigation equipment, and mobile workshops. The 12V and 24V battery platforms are compatible with vehicle electrical systems.
Remote Off-Grid Cabins & Farms: Provides stable, independent power for rural homes, mountain cabins, and agricultural operations where grid access is unavailable or unreliable. The GA-5024, GA-6548, and GPEO series are particularly well-suited for these applications.
Small Commercial & Light Industrial: Powers retail POS systems, security cameras, refrigeration units, communication base stations, and small workshops—reducing dependence on expensive diesel generators and ensuring business continuity during grid outages.
DIY Solar Projects & Education: Entry-level models like the GA-1212 and GA-2012 are perfect for solar enthusiasts and beginners building their own energy storage systems. Their use of standard components, low commissioning complexity, and comprehensive documentation make them highly accessible and easy to get started with.
A: Consider three factors: 1) Total continuous load (add up all devices you plan to run simultaneously), 2) Peak surge demand (motors and compressors draw 3-7x rated power during startup), and 3) Battery voltage (12V for small systems, 24V for medium, 48V for large). Our GA series covers from 1.2kW to 12kW, ensuring a perfect match for every application.
A: The GA series (GA-1212, GA-2012, GA-3624, GA-5024, GA-6548, GA-12048) is designed for standalone operation only. For parallel expansion, please choose our GPEO series (GPEO-6KL1 or GPEO-12KL1), which supports up to 12 units in parallel (72kW-144kW total) and can form three-phase 380V systems with 3+ units.
A: Pure sine wave output is identical to utility grid power, ensuring compatibility with all devices—especially sensitive electronics (computers, medical equipment) and inductive loads (motors, compressors, refrigerators). Modified sine wave can cause performance issues, overheating, or even damage to certain equipment. All KTAC inverters deliver pure sine wave output for complete peace of mind.
A: All models support both lithium (LiFePO₄) and lead-acid batteries with appropriate nominal voltages (12V, 24V, or 48V). With CAN/RS485 communication, they integrate seamlessly with lithium battery BMS for intelligent charging and monitoring. Lithium battery activation is built-in for waking up sleeping battery packs.
A: Yes. In UPS mode, switching time is just 10ms—fast enough that most electronic devices (computers, routers, TVs) will not restart or experience interruption. Connect the inverter between the grid outlet and your loads, keep the battery connected, and you have a complete uninterruptible power supply system.
A: The GA series has IP21 protection rating, making it suitable for indoor and semi-outdoor use (protected from rain). For fully outdoor installations, please consider our GPEO series with IP54 protection rating, or install the inverter in a weatherproof enclosure.
A: The standard warranty for GA series is 2 years, while the GPEO series offers 3 years. Extended warranty options are available. Please contact our sales representative for detailed warranty policies.
