Steca AJ

Steca AJ
275-12, 350-24, 400-48, 700-48, 1000-12, 2100-12, 2400-24

The Steca AJ inverter series stands out with its wide range of available power classes and DC input voltages.

This enables the optimal inverter to be used for any application. The cables for connecting the battery and the load are already mounted on the Steca AJ, thus making it easier to install the device. The automatic standby mode considerably reduces the inverter’s own consumption. The Steca AJ inverter’s excellent overload capacity ensures that even critical loads can be operated easily.

Product features

  • True sine wave voltage
  • Excellent overload capabilities
  • Optimal battery protection
  • Automatic load detection
  • Best reliability

Electronic protection functions

  • Deep discharge protection
  • Battery overvoltage shutdown
  • Overtemperature and overload protection
  • Short circuit protection
  • Reverse polarity protection by internal fuse (except Steca AJ 2100-12)
  • Acoustic alarm at deep discharge or overheating


  • Multi-coloured LED shows operating states


  • Main switch
  • Adjustable load detection


  • Types with 115 V / 50 Hz, 115 V / 60 Hz or 230 V / 60 Hz
  • Model with protective lacquered mainboard
  • Terminal for connection of a remote control (On/Off) for the types Steca AJ 275-12 to Steca AJ 700-48
  • Remote control JT8 (On/Off, LED) for connection to Steca AJ 1000-12 to Steca AJ 2400-24


  • Compliant with European Standards (CE)
  • RoHS compliant