The invention relates to a spring clamp (1) comprising a contact rail (2) for electrically connecting a conductor (3) that can be inserted into the spring clamp (1) in an inserting direction (6) to an electric assembly (7) and comprising a clamping means (4) for clamping the inserted conductor (3) in the spring clamp (1), said clamped conductor (3) electrically contacting the contact rail (2). The spring clamp comprises a housing part (5) that has two limb surfaces (51) which lie substantially parallel to each other, each said limb surface (51) having both a supporting means (54) for supporting the clamping means (4) as well as a securing means (53) for securing the conductor (3) from being pulled against the inserting direction (6).