Abstract: A device for the tool-free mounting of modules on a top-hat rail and for the damage-free, tool-free unmounting of the same. The device has a double leg spring, with a first leg coil spring and a second leg coil spring, which are arranged coaxially about a common spring axis. First and second spring legs of the double leg spring are dimensioned identically and in each case form a hook bent in the direction of an opposite end of the double leg spring. The double leg spring also has a common intermediate leg at another end, which leg forms a hook bent in the direction of a first end.

Abstract: A device for the tool-free mounting of modules (13) on a top-hat rail (19) and for the damage-free, tool-free unmounting of the same comprises a double leg spring (1), having a first leg coil spring (2) and a second leg coil spring (3), which are arranged coaxially about a common spring axis (4). At a first end of the double leg spring (1), a spring end of the first leg coil spring (2) forms a first spring leg (5) and a spring end of the second leg coil spring (3) forms a second spring leg (6). The first and second spring legs (5, 6) are dimensioned identically and in each case form a hook (7, 8) bent in the direction of an opposite, second end of the double leg spring (1). The double leg spring (1) has a common intermediate leg (9) at the other, second end, which leg forms a hook (10) bent in the direction of the first end.