Sofar Solar Tri 125 kW Grid Inverter – 125KTLX-G4

SOFAR 125KTL - High performance PV inverter

The SOFAR 75~136KTL is a transformerless PV inverter designed to convert direct current from solar panels into three-phase grid-compliant alternating current, thus supplying the public power grid. It is exclusively intended for use with PV systems in grid-connected conditions. Any other or additional use is strictly inadvisable, and SOFARSOLAR will not accept responsibility for any damage resulting from improper use.

Key functions

• Input card: Filters and detects insulation impedance and input DC voltage/current.
• Power card: Converts DC current to AC current.
• Output card: Filters AC current and transmits it to the mains, with mains voltage and output current detection, GFCI and output isolation relay.
• Control Card: Supplies auxiliary power, monitors inverter operating status and displays fault codes in the event of abnormal conditions.
• Function Module:

• • Energy management
  • Injection of reactive power into the network
  • Limitation of active power injected into the network
  • Automatic power reduction in the event of network over-frequency
  • Data transmission via RS485, Wi-Fi, GPRS, Ethernet
  • Software update via USB interface
  • Anti-PID function (optional)

Additional specifications

• Initial AC short-circuit current of 756.7A peak
• Complies with VDE-AR-N 4105:2018-11 for network and system protection

Technical data

• Maximum efficiency up to 98.75%
• IP66 design for outdoor installation
• Type II lightning arrester for DC and AC sides
• Remote firmware upgrade
• I-V curve scan function
• Maximum 10 MPP trackers with 150%+ DC overload
• Redundant AC / DC power supply design, 24-hour continuous monitoring

Applications: Ideal for large-scale rooftop or ground-mounted photovoltaic installations, offering maximum efficiency and robustness for demanding outdoor environments.