blueplanet 125 TL3

Simple. Smart. Strong.

The blueplanet 125 TL3 is a new trendsetter for commercial- and industrial-scale PV systems that rely on 1500 volt modules. Equipped with a power output of 125 kilowatts, while weighing less than 70 kilograms, this string inverter offers a high-power density, allowing oversizing up to nearly 1.5x its power output. 

blueplanet 125 TL3
  • Certificates
  • Data Sheet


Flexible configuration

An industry-leading 99% efficiency met with a wide MPPT range of 875 to 1300 volts showcases an unmatched level of superior performance. The blueplanet 125 TL3 has a robust aluminium outdoor housing for wall mounting. With an impressive temperature range of -25 to +60 °C, the unit is well equipped to stand up to the elements.


Utilizing aluminium cables with a cross section of up to 240 millimetres offers another avenue for saving on installation costs. Customized string collectors allow the user flexibility in configuration to any method of customized connection technology. 

Wireless comfort

Commissioning the inverter is wireless and easy, with a mobile app for iOs and Android. Supported by the integrated data logger with web server, system monitoring as well as updating and servicing an inverter network from a remote location can be achieved: For this purpose, each device has two Ethernet interfaces that allow you to set up a daisy chain.

OD+: the perfect inverter for coastal areas

In the OD+ model variant, KACO new energy inverters are built to be resilient against salt air corrosion. Whereas you have normally to keep a minimum distance to the sea of 2000 metres, you can install OD+ inverters as near as 500 meters from the shoreline.
The testing of the devices is based on the norm IEC 60068-2-52:1996, Environmental testing - Part 2: Tests - Test Kb: Salt mist, cyclic (sodium chloride solution).
The following inverters are tested without any abnormalities and are available in an OD+ version: blueplanet 15.0 TL3 and 20.0 TL3, blueplanet 50.0 TL3, blueplanet 125 TL3.

Turnkey system solution

The blueplanet 125 TL3 is also available as an all-in-one system solution, combining the advantages of centralised and decentralised system configurations: Feel free to send any questions regarding CPSS (Central Power String Solution) to pv-projects(at)



  • 1,500 V input voltage
  • 99% efficiency
  • High temperature power derating from +55 °C (@125 kWp)
  • Up to 50% inverter oversizing possible
  • Adjustable cos phi from 1 to 0 ind. / cap.



  • Low weight of 70 kg
  • IP65 wall-mount outdoor enclosure
  • AC side 240 mm² aluminium cables
  • Customized blueplanet Argus DC combiner box available
  • Unique all-in-one 3.0 and 6.0 MVA system solutions available (CPSS)



  • Numerous pre-installed interfaces
  • Mobile app for wireless start-up
  • 2 Ethernet interfaces for remote maintenance
  • Compatible with all commercially-available monitoring systems