Support rail system comprising: a support rail having • an elongate support profile rail having a longitudinal extension (L), which rail delimits an interior space (I) and comprises an elongate coupling opening , and • an elongate busbar which extends longitudinally (L) in the interior space (I) of the support profile rail , the busbar comprising at least one electrical conductor for the electrical connection of electrical or electronic components via the coupling opening , the support rail system being characterized in that it further comprises: a tapping element which is detachably inserted into the interior space (I) via the coupling opening and is electrically coupled to the busbar by means of a contact portion , the tapping element further comprising a provision element which is provided externally with respect to the support rail and is electrically connected to the contact portion by an electrical connection element , via an opening in the support profile rail which is independent of the coupling opening , in order to provide the electrical tapping of the contact portion from the busbar externally via the provision element . a support rail having • an elongate support profile rail having a longitudinal extension (L), which rail delimits an interior space (I) and comprises an elongate coupling opening , and • an elongate busbar which extends longitudinally (L) in the interior space (I) of the support profile rail , the busbar comprising at least one electrical conductor for the electrical connection of electrical or electronic components via the coupling opening , • an elongate support profile rail having a longitudinal extension (L), which rail delimits an interior space (I) and comprises an elongate coupling opening , and • an elongate busbar which extends longitudinally (L) in the interior space (I) of the support profile rail , the busbar comprising at least one electrical conductor for the electrical connection of electrical or electronic components via the coupling opening , the support rail system being characterized in that it further comprises: a tapping element which is detachably inserted into the interior space (I) via the coupling opening and is electrically coupled to the busbar by means of a contact portion , the tapping element further comprising a provision element which is provided externally with respect to the support rail and is electrically connected to the contact portion by an electrical connection element , via an opening in the support profile rail which is independent of the coupling opening , in order to provide the electrical tapping of the contact portion from the busbar externally via the provision element . a tapping element which is detachably inserted into the interior space (I) via the coupling opening and is electrically coupled to the busbar by means of a contact portion , the tapping element further comprising a provision element which is provided externally with respect to the support rail and is electrically connected to the contact portion by an electrical connection element , via an opening in the support profile rail which is independent of the coupling opening , in order to provide the electrical tapping of the contact portion from the busbar externally via the provision element . <EOS>