“ROHMS (DBR) Wire-wound resistor with enclosure box and external terminals. Braking resistors are prominently used to control motor speed. The resistor helps a motor stop quickly through the process called dynamic braking. The dynamic braking resistors, known as DBR, are used to absorb the high amount of energy generated when stopping the electric motors in Elevators, Cranes, Lifts, wind turbines, trains, etc.