R911280731 is part of the DDS Drive Controllers Series by Indramat Drives.
Product Line: DDS Heat Technology: Inside the cabinet Recommended Surrounding Air Temperature: 0 to 45 degrees Celsius Maximum Operating Temperature: 55 degrees Celsius Maximum Recommended Altitude: 1000 meters Altitude Derating Range: 1000 to 5000 meters Maximum Altitude Derating: 35% Rated Output: 50 Amps Communication Type: SERCOS command communication Supported Feedback Method: Digital servo and resolver Operating Voltage: 24 Volts DC Supported Power Supply Type: Regulated DC Weight: 7.5 kilograms Dimensions: 355 x 105 x 325 millimeters Minimum Front Clearance: 40 millimeters Minimum Top and Bottom Clearance: 80 millimeters.