TCM 1.1-04-W0 by Rexroth, Indramat, Bosch in the TCM Series. When drives are being braked, the TCM Auxiliary Capacitance Module can store drive energy so that it can be reused for acceleration. This TCM 1.1-04-W0 offers a Auxiliary Capacitance of 4 mF, and a Cooling Mode of Natural Convection.