A device for automatic lowering after a fall arrest at height equipped with a body with load-carrying elements for components, rotary rope drum with self-braking mechanism comprising supporting element, ratchet elements, rope drum, gear with teeth located around the perimeter of the gear, gear lock and rack located on axle having teeth engaged with teeth of the gear, wherein the self-braking mechanism is rotatable around an axle on the body, characterized in that the supporting element for the ratchet elements of the rope drum is located on first axle in the gear locked by means of a gear lock, wherein the ratchet elements are rotatably connected to the rope drum, wherein the first axle is connected to the body and provides free rotating movement of the rope drum with ratchet elements and free rotating movement of the supporting element connected with the gear on the same first axle, wherein after engaging the ratchet elements with the supporting element the rope drum is rotatable around the first axle together with the gear, wherein the gear lock is located on second axle connected to the body, wherein in a locked state after the fall arrest, an arm of the gear lock is locked by holding it by a clamp consisting of two parts, fixed support part with absorbing cushion contacting the first side of the arm of the gear lock, as well as pressure and rotary part with absorbing cushion contacting the second, opposite side of the arm of the gear lock, wherein the gear lock is coupled with the gear by engaging the teeth of the gear lock with teeth of the gear, wherein the pressure and rotary part is located on third axle connected to the body and providing free pivoting movement of the pressure and rotary part, wherein the pressure and rotary part is connected with a first end of a tilting bolt located on fourth axle connected to the body, wherein a second end of the tilting bolt is connected with a lock release coupled with a control module, wherein the lock release has a locked state and an unlocked state, wherein in the locked state triggered by the control module the lock release through the tilting bolt holds the pressure and rotary part in the locked position in which the absorbing cushion contacting and holding the second side of the arm of the gear lock in a coupled state with the gear, and wherein in the unlocked state triggered by the control module after a remote signal from the transmitter is received, the lock release releases the pressure and rotary part from the locked position, through pivoting the tilting bolt, unlocking the arm of the gear lock and allowing the gear lock to rotate in order to uncoupling from the gear, wherein all axles are parallel. wherein the ratchet elements are rotatably connected to the rope drum, wherein the first axle is connected to the body and provides free rotating movement of the rope drum with ratchet elements and free rotating movement of the supporting element connected with the gear on the same first axle, wherein after engaging the ratchet elements with the supporting element the rope drum is rotatable around the first axle together with the gear, wherein the gear lock is located on second axle connected to the body, wherein in a locked state after the fall arrest, an arm of the gear lock is locked by holding it by a clamp consisting of two parts, fixed support part with absorbing cushion contacting the first side of the arm of the gear lock, as well as pressure and rotary part with absorbing cushion contacting the second, opposite side of the arm of the gear lock, wherein the gear lock is coupled with the gear by engaging the teeth of the gear lock with teeth of the gear, wherein the pressure and rotary part is located on third axle connected to the body and providing free pivoting movement of the pressure and rotary part, wherein the pressure and rotary part is connected with a first end of a tilting bolt located on fourth axle connected to the body, wherein a second end of the tilting bolt is connected with a lock release coupled with a control module, wherein the lock release has a locked state and an unlocked state, wherein in the locked state triggered by the control module the lock release through the tilting bolt holds the pressure and rotary part in the locked position in which the absorbing cushion contacting and holding the second side of the arm of the gear lock in a coupled state with the gear, and wherein in the unlocked state triggered by the control module after a remote signal from the transmitter is received, the lock release releases the pressure and rotary part from the locked position, through pivoting the tilting bolt, unlocking the arm of the gear lock and allowing the gear lock to rotate in order to uncoupling from the gear, wherein all axles are parallel.