Connection module for switching device and connection rail

The invention relates to a connection module, particularly for use between a switching device and a busbar adapter, having a base plate, comprising a plurality of contacts disposed parallel to each other and parallel to a longitudinal axis of the base plate, wherein the contacts have contact ends configured as input and output sections, which are positioned substantially in the same plane, wherein the contact ends forming the input sections are disposed on one side of the base plate and the contact ends forming the output sections are disposed on the opposite side of the base plate, wherein the contact ends defining the output sections extend vertically to the base plate, and are configured as plug-in contacts, and wherein the contacts are guided through slots in the base plate, and the contact ends representing the input sections are provided parallel to each other and are aligned in a contact opening arrangement of the busbar adapter, which is configured in a mirror-symmetrical manner to a transverse axis.