The Asea Brown Boveri 2DB4020 is a 460 VAC dynamic braking kit for the SP500 drive family, rated for 20 HP of braking capacity. Weighing 17.00 lb, the 2DB4020 is commonly listed as a replacement part for Reliance Electric SP500 drives. In official SP500 documentation, the 2DB4020 is described as a dynamic braking kit used to dissipate regenerative energy during deceleration, enabling controlled stopping and protecting the drive from overvoltage.
