ABS 4W descender with automatic speed regulation. The centrifugal force-controlled brakes keep the speed constant during the entire abseiling process and thus enable a fast and safe rescue during evacuation measures in the pendulum abseiling process of 2 persons at the same time (ABS 4W). The abseiling speed can additionally be influenced on the counter-rotating rope,with the aid of the deflection points and cable guide notch on the device.