A connection box for a conductor board, in particular for a solar module, comprising: - a basic support having at least one opening region, and - at least one contact device, wherein - the at least on contact device is arranged inside the basic support such that at least one electric conductor of the conductor board is insertable along an insertion direction into the connection box through the at least one opening portion and is adapted for being contacted to the at least one contact device, the insertion direction being substantially perpendicular to the basic support; - the at least one contact device comprises at least one contact element having at least one resilient connecting contact spring and at least one connecting element, and wherein - the at least one connecting contact spring, by means of applying a force parallel to a direction of force with respect to the connecting element, is resiliently displaceable such that the at least one electric conductor of the conductor board is adapted for being arranged at least partly between the at least one connecting element and the at least one connecting contact spring, and wherein when a force is applied along the direction of force, the at least one connecting contact spring is spaced apart from the at least one connecting element such that an insertion region is formed between the at least one connecting contact spring and the connecting element, wherein the insertion region is arranged at least in some regions above the at least one opening region. - a basic support having at least one opening region, and - at least one contact device, wherein - the at least on contact device is arranged inside the basic support such that at least one electric conductor of the conductor board is insertable along an insertion direction into the connection box through the at least one opening portion and is adapted for being contacted to the at least one contact device, the insertion direction being substantially perpendicular to the basic support; - the at least one contact device comprises at least one contact element having at least one resilient connecting contact spring and at least one connecting element, and wherein - the at least one connecting contact spring, by means of applying a force parallel to a direction of force with respect to the connecting element, is resiliently displaceable such that the at least one electric conductor of the conductor board is adapted for being arranged at least partly between the at least one connecting element and the at least one connecting contact spring, and wherein - the at least on contact device is arranged inside the basic support such that at least one electric conductor of the conductor board is insertable along an insertion direction into the connection box through the at least one opening portion and is adapted for being contacted to the at least one contact device, the insertion direction being substantially perpendicular to the basic support; - the at least one contact device comprises at least one contact element having at least one resilient connecting contact spring and at least one connecting element, and wherein - the at least one connecting contact spring, by means of applying a force parallel to a direction of force with respect to the connecting element, is resiliently displaceable such that the at least one electric conductor of the conductor board is adapted for being arranged at least partly between the at least one connecting element and the at least one connecting contact spring, and wherein