Carabiner with a bar, comprising: • a metal body, • a gate mounted movable in rotation at a first end of the metal body between a closed position and an open position of the carabiner, the gate being in contact with a second end of the metal body when the carabiner is in closed position, • a separation bar fastened to the metal body and configured to define two distinct confinement areas, the carabiner being characterized in that • the separation bar is assembled onto the metal body at first and second opposite ends of the separation bar, • the first end comprises a first fastener surrounding the metal body, and the second end of the separation bar comprises a second fastener surrounding the metal body, the first fastener and the second fastener totally surrounding the metal body, • the separation bar being configured to authorize opening of the gate when the first and second fasteners (5a, 5b) totally surround the metal body, • the first fastener is configured so that the first end of the separation bar is assembled by clipping onto the metal body, and • the second fastener is configured so that the second end of the separation bar is assembled by clipping onto the metal body or the second fastener defines a ring having no means for opening said ring. • a metal body, • a gate mounted movable in rotation at a first end of the metal body between a closed position and an open position of the carabiner, the gate being in contact with a second end of the metal body when the carabiner is in closed position, • a separation bar fastened to the metal body and configured to define two distinct confinement areas, the carabiner being characterized in that • the separation bar is assembled onto the metal body at first and second opposite ends of the separation bar, • the first end comprises a first fastener surrounding the metal body, and the second end of the separation bar comprises a second fastener surrounding the metal body, the first fastener and the second fastener totally surrounding the metal body, • the separation bar being configured to authorize opening of the gate when the first and second fasteners (5a, 5b) totally surround the metal body, • the first fastener is configured so that the first end of the separation bar is assembled by clipping onto the metal body, and • the second fastener is configured so that the second end of the separation bar is assembled by clipping onto the metal body or the second fastener defines a ring having no means for opening said ring. • the separation bar is assembled onto the metal body at first and second opposite ends of the separation bar, • the first end comprises a first fastener surrounding the metal body, and the second end of the separation bar comprises a second fastener surrounding the metal body, the first fastener and the second fastener totally surrounding the metal body, • the separation bar being configured to authorize opening of the gate when the first and second fasteners (5a, 5b) totally surround the metal body, • the first fastener is configured so that the first end of the separation bar is assembled by clipping onto the metal body, and • the second fastener is configured so that the second end of the separation bar is assembled by clipping onto the metal body or the second fastener defines a ring having no means for opening said ring.