R911277289 is part of the DKR Drive Controllers Series by Indramat Drives.
Feedback System: Digital Servo and Resolver Power Output: 10kW to 93kW Operating Temperature: 5°C to 45°C Total Heat Dissipation: 1200W Maximum Pressure Rating: 160Pa Minimum Air Flow: 300m3/h Slots for Plug-In Cards: U1 to U5 Shutdown System: Emergency Stop Add-On: Brake Resistor (Optional) Space Requirement: Minimum 80mm Gap Above and Below in Closed Housing