Support rail fastening means for releasably fastening a component to a support rail, comprising - a mounting plate, the mounting plate having at least one suspension element and a guide, - a first spring element, and - a slide, the slide being displaceable on the guide and the first spring element being able to be brought into a pretensioned position by moving the slide on the guide and latching elements (10, 11, 110, 111) are provided on the guide and on the slide, which elements, when the first spring element is pretensioned, can be brought into engagement with one another in such a way that the slide is in a latching position, the support rail fastening means being movable along the support rail in a starting position in which the slide is in the latching position and in which the mounting plate is placed on the support rail by means of the suspension element, the slide having a first edge and a second edge spaced apart therefrom and a clamping groove formed between the first edge and the second edge, and, starting from the starting position, a force acting on the mounting plate in the direction of the support rail being able to induce a triggering movement of the slide through which the engagement between the latching elements (10, 11) is released and the slide can be transferred by means of the restoring force of the first spring element from the latching position to a locking position in which the slide in the region of the clamping groove comes to rest against the support rail and the support rail fastening means is fixed in a locking position on the support rail, the triggering movement being a tilting movement of the slide, the second edge of the slide coming to rest on the support rail in the starting position such that the force acting on the mounting plate in the direction of the support rail is transferred via the second edge to the slide such that said slide performs a tilting movement, characterized in that the slide, starting from the locking position of the support rail fastening means by a movement of the mounting plate in a direction which allows the suspension element to be lifted off the support rail, can be transferred out of the locking position back into the latching position and the support rail fastening means can be transferred back to the starting position in this way. - a mounting plate, the mounting plate having at least one suspension element and a guide, - a first spring element, and - a slide, the slide being displaceable on the guide and the first spring element being able to be brought into a pretensioned position by moving the slide on the guide and latching elements (10, 11, 110, 111) are provided on the guide and on the slide, which elements, when the first spring element is pretensioned, can be brought into engagement with one another in such a way that the slide is in a latching position, the support rail fastening means being movable along the support rail in a starting position in which the slide is in the latching position and in which the mounting plate is placed on the support rail by means of the suspension element, the slide having a first edge and a second edge spaced apart therefrom and a clamping groove formed between the first edge and the second edge, and, starting from the starting position, a force acting on the mounting plate in the direction of the support rail being able to induce a triggering movement of the slide through which the engagement between the latching elements (10, 11) is released and the slide can be transferred by means of the restoring force of the first spring element from the latching position to a locking position in which the slide in the region of the clamping groove comes to rest against the support rail and the support rail fastening means is fixed in a locking position on the support rail, the triggering movement being a tilting movement of the slide, the second edge of the slide coming to rest on the support rail in the starting position such that the force acting on the mounting plate in the direction of the support rail is transferred via the second edge to the slide such that said slide performs a tilting movement, characterized in that the slide, starting from the locking position of the support rail fastening means by a movement of the mounting plate in a direction which allows the suspension element to be lifted off the support rail, can be transferred out of the locking position back into the latching position and the support rail fastening means can be transferred back to the starting position in this way.