R911370443 is part of the HCS Compact Converters / Drive Controllers Series by Indramat Drives.
Specs
Control Panel: Yes Memory Slot: Yes Protection Against Large Solid Materials >12mm: Yes Temperature Regulation: Forced Ventilation Operational Efficiency: Up to 95 percent for more than five years Permissible Ambient Temperature: 0-45 degrees Celsius Maximum Permissible Installation Height: 1000 meters above sea level Permissible Relative Humidity Range: 5-95 percent Permissible Absolute Humidity Range: 1-29 grams per meter cube.