Model Range: OGS-1.5K / OGS-2.5K / OGS-3.3K Single Phase Platform
Optimal Power Yield: 15A Max. PV Input Current per string — Compatible with standard high-efficiency solar modules.
Low Start-up Voltage: 60V Startup threshold ensures longer daily working hours under low-light conditions.
Strong Load Capability: 110% continuous AC output overloading capacity to handle localized power spikes effortlessly.
Single Phase Grid Tied Inverter: Up to 97.5% maximum conversion efficiency with intelligent 1 MPP tracker.
All-Weather Protection: Rugged IP65 waterproof enclosure certified for indoor and outdoor installations.
Optimize residential roof yields and decentralized grid properties with Ecko Energy's premier single phase on grid inverter platform. Engineered as a highly responsive high efficiency single phase inverter for global distributors, solar installers, and EPC contractors, this string architecture seamlessly bridges low-power PV arrays with localized public networks. Whether your design requires a compact 1.5kw mini on grid inverter for high-density urban residential spaces, a mid-scale 2kw single phase grid tied inverter, or an optimized 3kw grid tied solar inverter for light commercial structures, our technology ensures industry-leading power density. As an elite residential string inverter factory, Ecko Energy balances strict international grid-code compliance with automated micro-adjustments, ensuring long-term project bankability.

97.5% Max. Efficiency. Incorporates a high 15A PV input current per string backed by an intelligent 1 MPP tracker, ensuring top-tier performance for a compact solar string inverter single phase setup.

110% continuous AC output overloading capacity. Features an ultra-low 60V Start-up Voltage to yield longer daily working hours under low start-up voltage conditions (early dawn/late dusk).

Integrated Plug & Play terminals for effortless onsite wiring. Equipped with an advanced local OLED display and a smart wireless App for rapid parameter settings and real-time data management.

Certified IP65 protection degree suitable for both indoor and severe outdoor environments. Extremely compact design structure with a sleek, space-saving architectural appearance.
| Model | OGS-1.5K | OGS-2.5K | OGS-3.3K |
|---|---|---|---|
| PV Input | |||
| Start-up Voltage [V] | 60 | 60 | 60 |
| Max. DC Input Voltage* [V] | 500* | 500* | 500* |
| Rated DC Input Voltage [V] | 360 | 360 | 360 |
| Operating Voltage Range* [V] | 50-450* | 50-450* | 50-450* |
| No. of MPP Trackers | 1 | 1 | 1 |
| No. of PV Inputs per MPPT | 1 | 1 | 1 |
| Max. Input Current [A] | 15 | 15 | 15 |
| Max. Short-circuit Current [A] | 20 | 20 | 20 |
| Grid Side | |||
| Rated Output Power [kW] | 1.5 | 2.5 | 3.3 |
| Max. Output Power [kW] | 1.65 | 2.75 | 3.3 |
| Rated Output Apparent Power [kVA] | 1.5 | 2.5 | 3.3 |
| Max. Output Apparent Power [kVA] | 1.65 | 2.75 | 3.3 |
| Rated AC Voltage | L/N/PE, 220/230/240V | ||
| Rated AC Frequency [Hz] | 50/60 | ||
| Rated Output Current [A] | 6.5 | 10.9 | 14.4 |
| Max. Output Current [A] | 7.2 | 12 | 14.4 |
| Power Factor | 0.8 leading …0.8 lagging | ||
| Max. Total Harmonic Distortion | <3% @Rated output power | ||
| DCI | <0.5%In | ||
| Efficiency | |||
| Max. Efficiency | 97.30% | 97.50% | 97.50% |
| European Efficiency | 96.40% | 97.00% | 97.00% |
| MPPT Efficiency | 99.90% | 99.90% | 99.90% |
| Protection | |||
| Integrated Protection | DC reverse polarity protection / Insulation resistance protection / Surge protection / Over-temperature protection / Residual current protection / Islanding protection / AC over-voltage protection /Overload protection / AC short-circuit protection | ||
| General Data | |||
| Over Voltage Category | PV: II Main: III | ||
| Dimensions [W×H×D mm] | 297×220×158 | ||
| Weight [KG] | 6 | ||
| Protection Degree | IP65 — Industrial Grade Waterproof Enclosure | ||
| Self-consumption at Night [W] | <1 | ||
| Topology | Transformerless | ||
| Operating Temperature Range [°C] | -30~60 | ||
| Relative Humidity [%] | 0~100 | ||
| Operating Altitude [m] | 3000 (>3000m Derating) | ||
| Cooling | Natural Convection | ||
| Display | OLED & LED | ||
| Communication | RS485, WiFi/LAN/4G (Optional) | ||
| * PV Max. Input voltage is 450V, otherwise inverter will be waiting; | |||
Our lightweight string inverter series maximizes energy conversion across a diverse matrix of residential infrastructure and commercial rooftop grids.

Perfect for high-density city properties with strict space limitations. Integrates cleanly as a 1.5kw mini on grid inverter node to secure low-threshold parallel grid connection lines easily.

Engineered to resist harsh farmstead dust via active convection. The robust layout handles small agribusiness loads effortlessly using an optimized 2kw single phase grid tied inverter loop.

Allows high-traffic retail spaces or small workshops to flatten daytime utility tariff bills via a dedicated rooftop pv string inverter 3kw asset tailored for rapid installation.

Tough enough for base cabins and unconditioned technical rooms. The weather-sealed casing ensures long-term operational string stability without requiring frequent onsite manual maintenance.
Ecko Energy backs solar installation engineers and brand wholesale networks with regional compliance guarantees, direct factory margins, and full OEM hardware custom scalability.
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