TBM 1.1-20-W1-220V by Rexroth, Indramat, Bosch in the TBM Series. When drives are running in generator mode, the regenerated energy is absorbed by the bleeder resistor. This TBM 1.1-20-W1-220V offers a Bleeder Peak Power of 20 kW and a Cooling Mode of Air, internal (with built-in blower), along with a Nominal Voltage for Heatsink Blower of 220 VAC.