DEYE 25kW Three-Phase On-Grid Inverter, SUN-25K-G04
Download Datasheet Download User Manual Download EU Declaration of Conformity The DEYE SUN-25K-G04 photovoltaic inverter converts the energy generated by photovoltaic panels into three-phase electrical energy compatible with 380/400V utility grids. Its rated output power is 25kW, while the maximum recommended photovoltaic array power is 32.5kW. The two MPPT trackers allow groups of panels with different orientations or irradiation conditions to be connected, helping optimise overall system production. The 200–850V MPPT operating range provides flexibility when sizing the photovoltaic strings. The maximum supported input voltage is 1000V, while the maximum input current is 30A + 30A. The inverter achieves a maximum efficiency of 98.6% and a European efficiency of 97.8%. Its IP65-rated enclosure allows installation in technical areas or outdoors, subject to the manufacturer’s installation requirements. The intelligent cooling system helps maintain the required operating temperature, while RS485, RS232, Wi-Fi and LAN interfaces enable system monitoring and integration. Key Features 25kW rated output power 27.5kW maximum active power 32.5kW maximum recommended PV power Three-phase 380/400V system Two MPPT trackers 200–850V MPPT operating range 1000V maximum DC input voltage 30A + 30A maximum input current 98.6% maximum efficiency 97.8% European efficiency IP65-rated enclosure Type II DC and AC surge protection LCD display Intelligent cooling Wi-Fi or LAN monitoring Five-year commercial warranty Benefits Designed for Commercial Installations Its 25kW output makes the inverter suitable for commercial buildings, manufacturing premises, warehouses, farms and other locations with a three-phase electrical supply. Two MPPT Trackers The two MPPT inputs independently manage groups of panels installed with different orientations or tilt angles. High Efficiency The maximum efficiency of 98.6% helps reduce energy conversion losses. Integrated Protection Functions The inverter includes protection against DC reverse polarity, AC short circuits, overcurrent, overvoltage, insulation faults, ground faults, unintended island operation and excessive temperature. Monitoring and Configuration The communication interfaces enable operating parameter monitoring and integration with compatible monitoring platforms. Recommended Applications Commercial photovoltaic systems Industrial buildings and premises Warehouses and logistics centres Office buildings Farms and agricultural facilities Manufacturing facilities Three-phase grid-connected photovoltaic systems Export-limited installations used with the required compatible equipment General Information Manufacturer DEYE Model SUN-25K-G04 V-TAC Product Code 12333 Inverter Type On-grid, three-phase Topology Transformerless Photovoltaic Input – DC Maximum Recommended PV Power 32.5kW Maximum Input Voltage 1000V Start-Up Voltage 250V MPPT Operating Range 200–850V Maximum DC Input Current 30A + 30A MPPT Trackers / String Configuration 2 / 3, according to the datasheet Grid Output – AC Rated Output Power 25kW Maximum Active Power 27.5kW Rated AC Voltage 220/380V or 230/400V Grid Voltage Range 277–460V AC, depending on the applicable grid standard Rated AC Current 36.2A at 400V Maximum AC Output Current 39.9A Rated Frequency 50/60Hz Power Factor 0.8 leading to 0.8 lagging Total Harmonic Distortion <3% Efficiency Maximum Efficiency 98.6% European Efficiency 97.8% MPPT Efficiency >99% Protection Electrical Protection DC reverse-polarity protection, AC short-circuit protection, output overcurrent protection and output overvoltage protection Safety Monitoring Insulation resistance monitoring, ground-fault protection, anti-islanding protection and thermal protection DC Switch Integrated Surge Protection Type II DC / Type II AC General Characteristics Ingress Protection Rating IP65 Operating Temperature -25°C to +65°C Cooling Intelligent cooling Typical Noise Level <45dB Night-Time Power Consumption <1W Maximum Altitude Without Power Derating 2000m Dimensions 400 × 520 × 240.5mm Weight 28kg Communication and Compliance Display 240 × 160 LCD Communication Interfaces RS485, RS232, Wi-Fi and LAN Referenced Grid Standards EN 50549-1, VDE 0126-1-1 Safety and EMC Standards IEC 62109-1/-2, IEC 61000-6-2, IEC 61000-6-4 Commercial Warranty 5 years Compatibility and Important Information This is an on-grid inverter. It does not have a battery input and cannot provide backup power when the utility grid is unavailable. The export-limitation function requires a compatible meter or metering equipment that has been correctly installed and configured. The maximum recommended photovoltaic array power must not be confused with the inverter’s rated AC output power. The PV strings must be sized according to the panels’ Voc, Vmp, Isc and Imp values, the limits of each MPPT tracker and the minimum and maximum temperatures at the installation site. Compatibility with the distribution system operator’s requirements must be checked before purchase and installation. Installation, configuration and commissioning must be carried out by qualified personnel in accordance with the manufacturer’s instructions and all applicable regulations.