R911289508 is part of the RD51 Drive Control Devices Series by Indramat Drives.
Specs
Rated Power Output : 160 kilowatts Input Voltage: 380-480 Volts AC Optional User Interface: User Panel with graphical display Converter: Built-In with chopper Mains Filter: Included Cooling Mode: Forced air cooling with liquid circulation Operating Ambient Temperature Range: 0 to 40 degrees Celsius Drive Operation Beyond 40°C: Output derates by 2.5% for every additional degree Operating Altitude: Output derates above 1000 meters Storage or Transportation Temperature: -25 to 70 degrees Celsius Maximum Temperature Variation: 20 K per hour Storage Requirements: Clean, dry, vibration-protected location Max Storage Duration for Converter and Supply Modules: 2 years at not more than 40 degrees Celsius Shipping: Global Availability