R911289495 is part of the RD51 Drive Control Devices Series by Indramat Drives.
Specs
Humidity Resistance: Relative Humidity up to 90%
Condensation Resistance: No tolerance
Airflow: Shouldn't be hindered
Temperature Tolerance: No extreme fluctuation or high maximum temperature
Ambient Condition: Not recommended for operation outside of it
Voltage Levels: High when field-oriented unit is in use
Brake Chopper: Integrated in the device
Cooling: Forced Air Circulation
Delivery: Global