Measuring. Controlling. Protecting.

Are you looking for a way to comfortable frequency and voltage protection as well as feed-in management of your solar power plant?
You are on the right track: Powador-protect is a protection device and management unit at the same time. Its singular attributes make it the most economical solution available that no alternative can keep pace with.

  • Certificates
  • Data Sheet


Low voltage guidelines in a growing number of European countries stipulate the deployment of external interface switches or substations from 30 kVA upwards. Cost wise, this can easily run into four-figure sums for material, installation and operation.

However, this is not the case with the Powador and blueplanet string inverters: section switches are already built into all devices as standard! You only need the Powador-protect which directly controls these internal switches. For EPCs, specifiers and designers of PV installations this means simple, no-risk calculations, and no hidden additional AC hardware costs and recurrent operating expenses. Using Powador-protect means an immediate alternative to more expensive safety switching, meeting all the common norms.

On top of that, Powador-protect evaluates the signals from ripple control receivers and transmits these to up to 31 inverters. The Powador-protect itself can be quickly installed, is easy to handle and is therefore the most economic solution on the market.


  • Grid and system protection as per VDE-AR-N 4105, CEI 0-21, G59/3 and ÖNORM
  • Individual voltage and frequency adjustment
  • Option to actuate the inverter's integrated section switches
  • No external interface switches required, additional AC-side material and labour costs no longer necessary
  • The amount of cabling in the meter cabinet and the sub-distribution can be kept to a minimum
  • A ripple control receiver connection is integrated
  • The system can be easily incorporated into the feed-in management without additional costs
  • Temporary protection according to the German Medium Voltage Directive