R911299878 is part of the HLB Resistor Brake Units Series by Indramat Drives.
Product Type: Brake Unit Continuous Regenerative Power: 100 kW Peak Regenerative Power: 1 kW Length: 251.5 mm Width: 65 mm Height: 352 mm Application: For stopping or decelerating heavy-duty motors Maximum Braking Power: 100 kW