Junction box (200, 200', 200", 200′′′, 200ʺʺ) for connecting a multi-wire flat cable to a number of terminals of a connection, wherein the junction box comprises the following: a support surface for a multi-wire flat cable to be contacted, a number of contact blades for single-sided, stripping-free contacting of a number of wires (L1, L2, L3, N, PE, D1, D2) of the flat cable, a number of terminals, a number of terminal rails adjoining the terminals, wherein each terminal rail has at least one hole, wherein through one hole in a terminal rail there is a contact pin inserted in each case, wherein a contact pin is provided in each case for a wire-to-terminal contact, wherein the occupancy of the holes in the terminal rails with contact pins defines which wire (L1, L2, L3, N, PE, D1, D2) of the flat cable is connected to which terminal, wherein an electrical contact is established between one or more contact blades and one or more terminal rails via one or more contact pins, characterized in that the terminals are produced in one piece with the terminal rails, that is to say the terminals and the adjoining terminal rails form a single component, wherein the junction box comprises cross-connectors, wherein the cross-connectors establish the electrical connection between the contact pins and the contact blades, wherein the cross-connectors have a row of a number of first holes, wherein positioning the contact blades in the corresponding holes has the effect of determining which cross-connector is connected to which contact blade and thus to which cable wire (L1, L2, L3, N, PE, D1, D2) of the flat cable to be contacted or to be tapped, wherein the cross-connectors have a row of a number of second holes (2"), in which the contact pins extending from the terminal rails are received, wherein each terminal rail comprises a row of a number of successively arranged holes, wherein the contact pins extend from a hole in a terminal rail to a hole in a cross-connector in order to establish the electrical connection from a certain terminal rail to a certain cross-connector. a support surface for a multi-wire flat cable to be contacted, a number of contact blades for single-sided, stripping-free contacting of a number of wires (L1, L2, L3, N, PE, D1, D2) of the flat cable, a number of terminals, a number of terminal rails adjoining the terminals, wherein each terminal rail has at least one hole, wherein through one hole in a terminal rail there is a contact pin inserted in each case, wherein a contact pin is provided in each case for a wire-to-terminal contact, wherein the occupancy of the holes in the terminal rails with contact pins defines which wire (L1, L2, L3, N, PE, D1, D2) of the flat cable is connected to which terminal, wherein an electrical contact is established between one or more contact blades and one or more terminal rails via one or more contact pins, characterized in that the terminals are produced in one piece with the terminal rails, that is to say the terminals and the adjoining terminal rails form a single component, wherein the junction box comprises cross-connectors, wherein the cross-connectors establish the electrical connection between the contact pins and the contact blades, wherein the cross-connectors have a row of a number of first holes, wherein positioning the contact blades in the corresponding holes has the effect of determining which cross-connector is connected to which contact blade and thus to which cable wire (L1, L2, L3, N, PE, D1, D2) of the flat cable to be contacted or to be tapped, wherein the cross-connectors have a row of a number of second holes (2"), in which the contact pins extending from the terminal rails are received, wherein each terminal rail comprises a row of a number of successively arranged holes, wherein the contact pins extend from a hole in a terminal rail to a hole in a cross-connector in order to establish the electrical connection from a certain terminal rail to a certain cross-connector.