DN3-Series(15-25KTL)

Main characteristics

The DN3 Series (15 – 25KTL) Three-Phase Grid-Tied Inverter is a high-efficiency solution designed for large-scale solar power systems. It is fully compatible with PV modules over 600W, maximizing the performance of high-power panels. This series supports remote firmware upgrades, ensuring optimal performance and enabling users to enjoy the latest features and improvements without manual intervention. With an extended MPPT voltage range (180 – 1000V), it adapts flexibly to varying sunlight conditions and diverse PV configurations, significantly enhancing solar energy capture and conversion efficiency. The inverter supports 150% DC input overload capacity, ensuring stable operation in complex input environments. Its maximum DC input voltage reaches 1100V, making it suitable for high-voltage PV systems. Additionally, built-in zero injection functionality helps optimize power quality and maintain grid stability.

Key Features

High Conversion Efficiency & Outstanding Energy Savings:
● This series boasts excellent performance with a maximum efficiency of up to 98.6% and a stable European efficiency of 98.2%. This ensures minimal energy loss during solar-to-electricity conversion, significantly improving energy utilization and reducing generation costs.

Wide Power Range to Meet Diverse Applications:
● Models in this series offer rated AC power ranging from 15,000W to 25,000W, with maximum recommended PV power from 22,500W to 37,500W. This wide range of power configurations meets the demands of various solar power projects—from small commercial installations to large centralized solar farms.

Comprehensive Protection for Reliable Safety:
● The inverter includes DC insulation monitoring, reverse polarity protection, anti-islanding protection, residual current monitoring, AC overcurrent protection, and AC short-circuit protection. Type II surge protection on the DC side is standard, with optional AFCI protection and PID recovery available on selected models. This all-around safety system ensures stable and secure operation under diverse and challenging conditions.

Convenient Communication & Smart Management:
● Standard interfaces include RS485, USB, and WiFi, with optional 4G or Ethernet connectivity. These communication options enable real-time remote monitoring and management, allowing users to stay informed of system status, identify potential issues early, and perform intelligent O&M (operations and maintenance).

Low-Noise Cooling & Environmentally Friendly Design:
● The inverter uses transformerless forced-air cooling, which enhances efficiency while keeping noise levels below 45dB. With an IP65 protection rating, it is built for harsh outdoor environments and operates reliably in temperatures ranging from -25°C to +60°C and humidity levels from 0 to 100%. It also supports operation in high-altitude areas up to 2000 meters.