The Bendix+ EC-60 Premium Controller is a member of a family of electronic Antilock Braking System (ABS) devices designed to help improve the braking characteristics of air braked vehicles - including heavy - and medium-duty buses, trucks, and tractors. In addition to the Antilock Braking System function, premium models of the EC-60 controller provide an Automatic Traction Control (ATC) feature. Bendix ATC can improve vehicle traction during acceleration, and lateral stability while driving through curves. ATC utilizes Engine Torque Limiting (ETL) where the ECU communicates with the engine's controller and/or Differential Braking (DB) where individual wheel brake applications are used to improve vehicle traction. Premium EC-60 controllers have a drag torque control feature which reduces driven-axle wheel slip (due to driveline inertia) by communicating with the engine's controller and increasing the engine torque. \nNote: Cab-mounted EC-60 controllers are not protected against moisture, and must be mounted in an environmentally protected area. Frame-mounted EC-60 controllers may be mounted on the vehicle frame, but only in locations where they will not be subjected to direct tire spray.