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THK Solar Off Grid Inverter Overview

Solar Hybrid Off Grid Inverter THK-EU Single Phase 1.2kW~5kW

3kW-6kWHybrid InverterSingle Phase EU

Home / Products / Solar Hybrid Off Grid Inverter THK-EU Single Phase 1.2kW~5kW

Solar Hybrid Off Grid Inverter THK-EU Single Phase 1.2kW~5kW

3kW-6kWHybrid InverterSingle Phase EU

THK Solar Off Grid Inverter Overview

Highlights at a Glance

  • High-Efficiency Residential Solar Inverter: Peak efficiency up to 94% ensures maximum energy conversion.

  • Battery Compatibility: Supports lithium batteries, lead-acid batteries, or PV-only operation.

  • Maximum PV Input: Up to 6kW PV array, suitable for small to medium home solar systems.

  • Parallel Capability: 5kW model supports parallel operation for scalable energy storage.

  • Seamless Backup Power: Fast switch time <10ms guarantees uninterrupted electricity.

  • Wide MPPT Voltage Range: 40–450V DC / 120–430V DC for flexible PV input configurations.

  • Bidirectional DC Soft Start: Extends inverter and battery service life.

  • Built-in MPPT Solar Charge Controller: Tracking efficiency up to 99.5%, optimizing solar energy harvest.

Quick Summary

The THK 1.2kW/3kW/5kW-EU single-phase low-voltage off-grid solar inverter is ideal for residential and small-scale PV systems. Supporting lithium or lead-acid batteries and direct PV-only operation, it delivers reliable energy storage, peak efficiency up to 94%, and seamless power switching for home backup and off-grid applications.

ModelTW-THK-1.2KS12P TW-THK-3K6S24PTW-THS-5KS48P
Rated Power1.2kW3.6kW5kW
Rated Voltage 208 / 220 / 230 / 240 V a.c., L+N+PE208 / 220 / 230 / 240 V a.c., L+N+PE208 / 220 / 230 / 240 V a.c., L+N+PE
Rated Frequency 50 Hz / 60 Hz50 Hz / 60 Hz50 Hz / 60 Hz
Current(Maximum Continuous)10 A a.c 20 A a.c40 A a.c
Power Factor111
Wave Form Pure Sine WavePure Sine WavePure Sine Wave
Switch Time <10 ms (Typical)<10 ms (Typical)<10 ms (Typical)
Inverter Efficiency (Peak) 90.5%@12 V.d.c >92%>94%
Current (Maximum Continuous) 10 A a.c 15.6 A a.c.22.7 A a.c.
Maximum Output Overcurrent Protection 102% ~ 110% 1min / 110% ~ 130% 10s / 130% ~ 150% 3s / 150% 0.2s 102% ~ 110% 1min / 110% ~ 130% 10s / 130% ~ 150% 3s / 150% 0.2s102% ~ 110% 1min / 110% ~ 130% 10s / 130% ~ 150% 3s / 150% 0.2s
Battery TypeLithium / Lead-acidLithium / Lead-acidLithium / Lead-acid
Rated Battery Voltage 12 V24 V48 V
Rated Voltage Range10.8 ~ 15 V21 ~ 30.2 V42 ~ 60 V
Max. Charge Current 120A100A 80A
PV INPUT MPPT Tracker/Strings 111
Max. PV Array Power 1KW5KW6KW
Max. DC Voltage 125V500V500V
MPPT Voltage Range 20 ~ 100 V40~450 V120 ~ 430 V
Start-up Voltage20V60V120V
MPPT Maximum Charge Current60 A d. c.100 A d. c.80 A d. c.
Max. Input Current14 A d. c.18 A d. c.18 A d.c.
Isc PV (Absolute Maximum)16 A d. c.22 A d. c.22 A d. c.
Parallel FunctionNoNo YES
IP Grade IP20, Indoor onlyIP20, Indoor onlyIP20, Indoor only
Protection Overload, Over temperature, Short circuitOverload, Over temperature, Short circuitOverload, Over temperature, Short circuit
Operation Temperature -10℃ ~ +50℃ -10℃ ~ +50℃-10℃ ~ +50℃
Storage Temperature-10℃ ~ +60℃-10℃ ~ +60℃-10℃ ~ +60℃
Noise <50dB<50dB<50dB
Dimension330*228*90mm335*470*125mm335*470*125mm

 

THK Series PV System Diagram – Off Grid Solar Inverter Connection Overview

The THK Series Off-Grid Inverter 1.2kW–5kW efficiently converts DC power from solar panels, generators, or mains into clean AC electricity for various loads. When connected to a battery, solar energy can charge the battery while providing power for daily use or during outages.

Ideal for residential homes, cottages, remote areas, outdoor worksites, and shops requiring reliable backup power. The 5kW model supports up to 9 units in parallel, allowing higher output when a single inverter is insufficient.

Warranty & Service

2-Year Guaranteed Reliability – Backed by our commitment to high-quality components and support.

Order Process

Inquiry & Confirmation

Discuss requirements and confirm order details.

Production Scheduling

Arrange manufacturing according to the confirmed order.

Shipping & Dispatch

Notify you for shipment after quality inspection is completed.

Delivery to Your Country

Goods arrive at your designated location.

  • B2B Wholesale

    Our professional sales consultants analyze your market and recommend the most suitable products, configurations, and pricing for your business. We support sample orders, small-batch OEM orders, and large-scale ODM projects, offering flexible solutions to meet your needs. During your wholesale, retail, or project sales process, we provide 24-hour support to help you overcome challenges and succeed in your market. We accept T/T payments under FOB or EXW terms, and multiple currencies are supported. For product inquiries or to place an order, please contact us!

  • DIY Assembly Needs

    We create a personalized checklist based on your region and project needs, helping you choose the most suitable products and configurations. We offer multiple payment options and can ship directly to your home via air or sea freight. For installation or after-sales issues, our factory-direct service and warranty ensure prompt support. If there is a local agent or warehouse in your area, we also support direct pick-up or delivery from the warehouse. Any defective products can be returned to the warehouse for replacement or repair, making your DIY project hassle-free.

  • EPC

    If you are a local EPC or require products with EPC services, we offer special agreement pricing and manufacturer warranty for EPC service providers. Payment options support FOB or EXW terms, and our technical team provides 24-hour remote support to assist your project implementation. For on-site EPC projects, we match the best local resources based on your region and provide remote or on-site assistance. From equipment supply to installation and commissioning, we offer a complete turnkey solution, ensuring your project is implemented smoothly and efficiently.

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