Gebrauchsanweisung für Kühlboxen
Mode d’emploi pour réfrigérateurs portatifs

The front cover mentions the following models

  • B 501
  • RC 110/A
  • RC 150/A
  • B 533
  • KK BA 400

The below manual was included with this Electrolux portable refrigerator:

Electrolux frontElectrolux backElectrolux sideElectrolux switch details

The manual itself

Operating instructions for camping-boxes / Gebrauchsanweisung für Kühlboxen / Mode d'emploi pour réfrigérateurs portatifsOperating instructions for camping-boxes_Page 1Operating instructions for camping-boxes_Page 2Operating instructions for camping-boxes_Page 3Operating instructions for camping-boxes_Page 4Operating instructions for camping-boxes_Page 5Operating instructions for camping-boxes_Page 6Operating instructions for camping-boxes_Page 7Operating instructions for camping-boxes_Page 8Operating instructions for camping-boxes_Page 9Operating instructions for camping-boxes_Page 10Operating instructions for camping-boxes_Page 11Operating instructions for camping-boxes_Page 12Operating instructions for camping-boxes_Page 13Operating instructions for camping-boxes_Page 14Operating instructions for camping-boxes_Page 15Operating instructions for camping-boxes_Page 16Operating instructions for camping-boxes_Back

These instructions were with an Electrolux camping refrigerator.  Similar refrigerators may be branded “Electrolux Dometic”. 

References:
How Do Caravan Refrigerators Work?
Aussieveedubbers -Electrolux 3 Way Fridge