Abstract: Screw terminal connected to a conductor device mounted on a piece of electrical equipment to connect at least one conductor, composed of a connection cage and a screw, the cage and/or the screw being movable inside the terminal housing. A pressure device (30) composed of a head plate (31) and a pressure plate (32) connected to each other by two elastic symmetrical wings (33, 34) designed to store torque energy, the head plate being convex in shape and attached by the screw neck. The pressure plate can be applied against a conductor or against the conductor device on the equipment, and the elastic wings are concave in shape, with a concavity that is reduced as the pressure on the screw is increased.

Abstract: Screw terminal connected to a conductor device mounted on a piece of electrical equipment to connect at least one conductor, composed of a connection cage and a screw, the cage and/or the screw being movable inside the terminal housing.

Abstract: Such a clamp has a clamping spring (5) and a busbar (4) on which the pretensioned clamping spring (5) can be placed. One end leg (8) of the clamping spring (5) has a window (9) penetrated by the tongue of the busbar (4), and a spring-tensioned electrical conductor can be fixed between a front edge (12) and the busbar (4). The other end section (14) of the clamping spring (5) abuts a brace of the busbar (4), and the spring forms a flexible joint (6) between its end leg (8) and the end section (14). To make the design and installation simpler, the clamping spring (5) is bent essentially in the form of a circular arc section at its flexible joint (6). Its end leg (8) and end section (14) are bent away from the open side (7) of the arc-shaped flexible joint (6), and the tongue (10) and brace (15) are in a respectively adapted position on the busbar (4).