
Introduction
The 10~25kw Three Phase On Grid Smart Solar Power Inverter boasts of an impressive feature that allows it to efficiently convert DC power generated by solar panels into AC power. This feature makes it an ideal choice for powering homes, businesses, and other electrical equipment. The inverter is also designed with a die-cast aluminum shell that provides superior protection against water, dust, and corrosive agents. With an IP66 waterproof and dustproof rating and C5 anti-corrosion level, this inverter can operate efficiently both indoors and outdoors. It is compatible with various solar panels and can handle wide grid voltage and high harmonic power, making it highly reliable and perfect for small industrial and residential use.

The extraction of solar power and its conversion into grid-ready AC is greatly optimized by Onesto inverters, thanks to their remarkably efficient conversion capability. As a result, customers can experience elevated energy yields, leading to a notable enhancement in the overall efficiency of their solar systems.
With Onesto inverters, you can be assured of advanced technology and top-notch components that offer exceptional stability and dependability. This translates to reduced chances of system failures and maintenance costs, and a boost in system reliability and uptime. As a result, your customers are bound to be more satisfied with your services, and their growing trust in your product will help you stay competitive in the market.
Onesto inverters aren't just highly efficient and reliable; they come with advanced monitoring and troubleshooting features that make solar system management a breeze. With real-time monitoring capabilities, your clients can keep a close eye on how their solar system is operating and quickly resolve any potential issues that arise. This streamlined approach to troubleshooting not only improves system efficiency but also makes it more manageable. Additionally, thanks to remote monitoring and management capabilities, your customers can easily monitor multiple systems and perform data analysis to optimize performance. Ultimately, Onesto inverters are a smart investment for anyone looking to get the most out of their solar system.
Product Specification
Model | OST 10KTL | OST 15KTL | OST 17KTL | OST 20KTL | OST 22KTL | OST 25KTL |
Efficiency | ||||||
Max. Efficiency | 98.3% | 98.4% | 98.4% | 98.4% | 98.4% | 98.4% |
European Efficiency | 97.8% | 98.0% | 98.0% | 98.0% | 98.0% | 98.0% |
Input (PV) | ||||||
Max. Input Voltage | 1100V | |||||
Max. PV configuration | 150% | |||||
Rated Input Voltage | 620V | |||||
Max. Input Current | 30A+15A | 2*30A | ||||
Max.Short Circuit Current | 40A+20A | 2*40A | ||||
Start Input Voltage | 180V | |||||
MPPT Operating Voltage Range | 160V-1000V | |||||
Max. Number of PV Strings | 3 (2/1) | 4 (2/2) | ||||
No. of MPPTs | 2 | |||||
Output (Grid) | ||||||
Rated AC Active Power | 10,000W | 15,000W | 17,000W | 20,000W | 22,000W | 25,000W |
Max. AC Apparent Power | 11,000VA | 16,500VA | 18,700VA | 22,000VA | 24,200VA | 25,000VA |
Max. AC Active Power (PF=1) | 11,000W | 16,500W | 18,700W | 22,000W | 24,200W | 25,000W |
Max. AC Output Current | 3*16.8A | 3*25.3A | 3*28.6A | 3*33.7A | 3*37A | 3*39.8A |
Rated AC Voltage | 380V / 400V / 415V, 3W+N+PE | |||||
AC Voltage Range ① | 260V-510V (Adjustable) | |||||
Rated Grid Frequency | 50Hz / 60Hz | |||||
Grid Frequency Range ② | 45Hz-55Hz / 55Hz-65Hz (Adjustable) | |||||
THDI | <3%@Rated Power | |||||
DC Current Injection | <0.5%@Rated Current | |||||
General | ||||||
Topology | Transformerless | |||||
IP Rating | IP66 | |||||
Night Self Consumption | <1W | |||||
Operating Temperature Range | -25℃-60℃ | |||||
Relative Humidity Range | 0-100% | |||||
Max. Operating Altitude | 4000m | |||||
Noise | <45dB | |||||
Dimensions (W*H*D) | 398mm*460mm*190mm | |||||
Weight | 23Kg | |||||




FAQ
Q:Can we get a sample for checking the products quality?
A:Samples to check our products quality is welcome. We have some specification stock for quick delivery
Q:When I can receive quotation and detail information after sending the enquiry?
A:Within 24 hours.
Q:How long is the warranty?
A:Normally it is 5-10 years.
Q:What’s the payment term?
A:30% TT in advance, balance against copy of B/L, or L/C at sight.
Q:Can you help me to select suitable products?
A:Sure, please send us inquiry and tell us your demand, we will have professional team to support you in model selection.
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