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Three-phase photovoltaic inverter 10-25kW

Three-phase photovoltaic inverter 10-25kW

Three-Phase PV Inverter (10-25K Series)

A high-performance three-phase photovoltaic inverter series (RSI-10K3P to RSI-25K3P) engineered for commercial and residential solar systems, with rated output power ranging from 10kW to 25kW and a maximum efficiency of 98.5%.

Key features include 32A MPPT current (compatible with high-power PV modules), IP66 waterproof/dustproof rating, adaptive complex grid compatibility, intelligent remote monitoring & maintenance, anti-islanding protection, and compliance with international safety standards (IEC/EN).

Designed for reliable operation in harsh environments, it delivers exceptional energy conversion efficiency (up to 98.50%) and seamless grid integration for global solar applications.

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Overview
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Product Description

Three-Phase PV Inverter 10-25K Series: High-Efficiency Power Conversion for Commercial & Residential Solar Systems

In the global shift toward renewable energy, the Three-Phase PV Inverter 10-25K Series (RSI-10K3P to RSI-25K3P) emerges as a premium solution for converting solar energy into grid-compliant AC power, tailored for commercial, industrial, and large-scale residential photovoltaic (PV) systems. Engineered with cutting-edge power electronics and user-centric design, this inverter series combines industry-leading efficiency, robust environmental protection, and intelligent operation—setting a new standard for reliability and performance in mid-sized solar installations.

Product Parameters

Three-phase PV Inverter 30-60K
✓ IP66 High Protection Grade
✓ Fast Terminal, Simple Wiring
✓ OTA Online Remote Upgrade, Worry-free System Update
✓ Built-in PID Recovery Function, Improve Component Power Generation Performance
✓ Max MPPT Current 40A, Suitable for High-power and Double-sided Modules
Parameter Category/Item	TSI-30K3P-03-CN	TSI-33K3P-03-CN	TSI-38K3P-03-CN	TSI-40K3P-03-CN	TSI-50K3P-03-CN	TSI-60K3P-03-CN
DC Input
Max DC Input Power	45kW	49.5kW	54kW	60kW	70kW	80kW
Max DC Input Voltage	1100V
Start-up Voltage	200V
MPPT Voltage Range	200-1000V
Max Input Current per MPPT	32A*3	32A*3	32A*3	32/32/32/40A	32/32/32/40A	32/32/32/40A
Max DC Current	50A*3	50A*3	50A*3	50/4*4	50/4*5	50/4*5
Number of DC Input Strings per MPPT	March 3rd		March 3rd	April 8th	May 10th	May 10th
AC Output
Rated Output Power	30kW	33kW	38kW	40kW	50kW	60kW
Max Apparent Power	33kVA	36.3kVA	39.9kVA	44kVA	55kVA	66kVA
Max Active Power	33kW	36.3kW	41.8kW	44kW	55kW	66kW
Rated Output Current	45.6A	50.1A	54.7A	60.8A	72.5A	84.5A
Max Output Current	50.2A	55.1A	60.2A	66.9A	79.7A	95.6A
Output Voltage Range	3LN/PE 400V (Voltage adjustable 300-480V)
Output Frequency Range	50Hz/60Hz (Adjustable 45-55Hz/55-65Hz)
Power Factor	>0.99 (0.8 leading - 0.9 lagging)
Total Harmonic Distortion Rate	<0.8% (Rated Power)
Efficiency
European Efficiency	98.60%	98.40%	98.50%	98.50%	98.50%	98.50%
Max Efficiency	97.70%			97.90%
Protection
Insulation Protection	Available
Overvoltage Protection	Available
Overcurrent Protection	Available
AC Surge Protection	Available
DC Switch	AC/DC Surge Type II
Lightning Protection	AC/DC Surge Type II
Protection Class	Class I
Basic Parameters
Dimensions (LWH) (mm)	505mm×400mm×200mm			675mm×500mm×275mm
Weight	32kg			50kg
Protection Grade	IP66
Cooling Method	Passive Cooling
Standby Power Consumption	<1W
Grid-connected Type	Intelligent Grid-connected
Working Temperature Range	-25~+60℃ (0-100% RH, No Condensation)
Storage Temperature Range	-40~+85℃
Certification/Standard	NB/T 32004
Anti-islanding Standard	IEC 62110-1-2/IEC 61000-6-1/2-3/-4/NB/T 32004
Display & Communication
Display	LED+LCD

Core Performance & Efficiency

At the heart of the 10-25K Series lies a focus on maximum energy harvest and conversion efficiency. The series achieves a maximum efficiency of 98.5% and a European efficiency of up to 98.50% (for the 25kW model), ensuring minimal energy loss during the DC-to-AC conversion process. This high efficiency directly translates to higher energy yields for solar system owners, accelerating return on investment (ROI) and reducing payback periods.

The inverter is equipped with advanced Maximum Power Point Tracking (MPPT) technology, featuring a 32A MPPT current (per channel) and a wide MPPT voltage range of 100-1000V. This design is specifically optimized for high-power PV modules, allowing compatibility with the latest generation of solar panels and maximizing energy capture even under fluctuating light conditions (e.g., partial shading, varying irradiance). With 2 independent MPPT trackers (for all models in the series), the inverter can connect multiple PV strings with different orientations or tilt angles—flexibility that is critical for complex roof layouts or uneven terrain installations.

Three-phase photovoltaic inverter 10-25kW

The series spans a comprehensive power range, with rated output power from 10kW (RSI-10K3P) to 25kW (RSI-25K3P), and maximum DC input power from 12kW to 30kW (depending on the model). This scalability makes it suitable for a wide spectrum of applications: from small commercial buildings (10-15kW) to medium-sized industrial facilities (20-25kW), and large residential properties with high energy demands. Key electrical parameters—including a maximum DC input voltage of 1000V, rated AC output voltage of 3/N/PE 220/380V, and a grid frequency of 50Hz (±0.5Hz for over/under frequency protection)—ensure seamless integration with global grid standards, making the inverter a truly universal solution for international markets.

Robust Design & Environmental Resilience

Built to withstand the harshest operating conditions, the 10-25K Series features an IP66 protection rating—the highest level of dust and water resistance for outdoor electronic equipment. This rating ensures the inverter can operate reliably in heavy rain, dust storms, high humidity, and extreme temperatures (-25℃ to 60℃, 0-100% RH non-condensing), eliminating the need for costly protective enclosures and reducing installation complexity. The inverter uses natural cooling technology (no fans or moving parts) with a noise level of <1W, ensuring silent operation and minimal maintenance—critical for residential areas or noise-sensitive commercial environments (e.g., offices, retail spaces).

The inverter’s adaptive complex grid technology further enhances its reliability, allowing it to stabilize operation even in regions with unstable grid voltage or frequency. It complies with strict grid connection standards (IEC61000-1-2, IEC61000-6-2/-3, NB/T32004), including anti-islanding protection, overvoltage/undervoltage protection, overfrequency/underfrequency protection, and output short-circuit protection. These comprehensive safety features protect both the inverter and the connected PV system from grid faults, equipment damage, and safety hazards—ensuring compliance with international electrical codes and giving system owners peace of mind.

Intelligent Operation & Maintenance

The 10-25K Series is designed for hassle-free operation and remote management, a key advantage for installers and system operators. It supports intelligent remote monitoring and maintenance via RS485, WiFi, and Ethernet communication protocols, enabling real-time tracking of key performance metrics (e.g., energy production, MPPT efficiency, grid voltage/frequency) from any internet-connected device. This remote access allows for proactive maintenance: potential issues (e.g., string failure, grid anomalies) can be identified and resolved without on-site visits, reducing downtime and operational costs.

For on-site operation, the inverter is equipped with a user-friendly interface (optional LCD display with LED indicators) that provides clear visibility of system status, error codes, and performance data. The compact and lightweight design—with dimensions of 406mm×668mm×188mm and a weight of 20kg (10kW model) to 22kg (25kW model)—simplifies transportation and installation, even in tight spaces. The inverter’s plug-and-play wiring design further reduces installation time, lowering labor costs for installers and accelerating system commissioning.

Three-phase photovoltaic inverter 10-25kW

Application Versatility & Compliance

The 10-25K Series is engineered for versatility, suitable for a wide range of PV system configurations:

Commercial Buildings: Power offices, retail centers, and small industrial facilities with clean solar energy, reducing reliance on grid power and lowering electricity bills.

Large-Scale Residential Properties: Support high-energy-demand homes (e.g., with electric vehicles, heat pumps, or home automation systems) with reliable solar power conversion.

Industrial Sheds & Warehouses: Convert solar energy from rooftop PV arrays into usable power for manufacturing, storage, or logistics operations.

Agricultural Applications: Power irrigation systems, greenhouses, or farm buildings in rural areas, leveraging solar energy to reduce operational costs.

The inverter complies with global safety and performance standards, including IEC61000 (electromagnetic compatibility), NB/T32004 (Chinese grid connection standards), and EN standards for European markets. This compliance ensures the inverter can be deployed in over 100 countries worldwide, with minimal regulatory barriers for system integrators and installers.

Conclusion

The Three-Phase PV Inverter 10-25K Series represents the pinnacle of mid-sized PV inverter technology, combining exceptional efficiency, robust environmental protection, and intelligent operation in a compact, user-friendly design. Its scalability (10kW to 25kW), compatibility with high-power PV modules, and compliance with global grid standards make it a versatile choice for solar installers, system integrators, and end-users alike. Whether deployed in a commercial rooftop system, a large residential installation, or an industrial setting, this inverter delivers consistent performance, maximum energy harvest, and long-term reliability—backed by industry-leading efficiency and comprehensive safety features. For businesses and homeowners looking to maximize the value of their solar investments, the 10-25K Series is more than just an inverter: it is a critical component of a sustainable, cost-effective, and resilient solar energy system.