The return stop will be installed in combination with an undamped separator or with a damped separator. The return stop may not be installed as a stand-alone device, e.g. as a rotation-locking device. In this range, lowering is regulated using electrical energy. Connector with A EN 175301-803 (DIN 43650) electrical connector: this is connected to the e-return stop and wired via the SPS. No external air supply is required.