R911309857 is part of the MHD Synchronous Motors Series by Indramat Motors.
Servo Feedback: Digital Shaft Type: Key with Sealing Ring Max Theoretical Torque: 231 Nm Thermal Time Constant: 20-40 minutes Working Temperature: 0 to +40 degrees Celsius Winding Inductance: 5.5 mH Winding Resistance: 0.43 ohms Rated Power: 8 kW Rated Current: 16.6 A Rated Rotating Speed: 2500 revolutions per minute Weight: 34 kg Insulation Grade: F Protection Level: IP 65 Maximum Height for Mounting: 1000 meters above sea level Power Connector Location: B Side Natural Cooling Output: 33.1 Nm Current Consumption in Surface Cooling: 21.7 A Housing Coating: Black Paint (40 m thickness) Cooling Method: Natural and Surface Cooling.