Electrical module for connecting to a support rail which comprises a support rail profile having two lateral walls and at least one busbar, which is arranged on one of the two inner sides of the lateral walls of the support rail profile and provides electrically contactable lines, • the electrical module comprising a contacting element, which can be inserted into the support rail profile and comprises connection contacts, which are provided for bearing against lines of the busbar in a state in which the contacting element is inserted into the support rail profile, • the contacting element being mounted so as to be rotatable about an axis of rotation relative to a support element of the electrical module, between an open position, in which an insertion and removal of the contacting element from the support rail profile is made possible, and a contacting position, in which the connection contacts contact lines of the busbar, • and the contacting element comprising a base body, which is rotatably accommodated in the support element of the electrical module, and a contact holder body, which holds the connection contacts and is arranged on the base body and rotates therewith, characterized in that the contact holder body is mounted so as to be adjustable relative to the base body along the axis of rotation between a) a locking position, in which a rotation of the contacting element is blocked, and b) a release position, in which a rotation of the contacting element is made possible, the contact holder body being resiliently preloaded into the locking position. • the electrical module comprising a contacting element, which can be inserted into the support rail profile and comprises connection contacts, which are provided for bearing against lines of the busbar in a state in which the contacting element is inserted into the support rail profile, • the contacting element being mounted so as to be rotatable about an axis of rotation relative to a support element of the electrical module, between an open position, in which an insertion and removal of the contacting element from the support rail profile is made possible, and a contacting position, in which the connection contacts contact lines of the busbar, • and the contacting element comprising a base body, which is rotatably accommodated in the support element of the electrical module, and a contact holder body, which holds the connection contacts and is arranged on the base body and rotates therewith, characterized in that the contact holder body is mounted so as to be adjustable relative to the base body along the axis of rotation between a) a locking position, in which a rotation of the contacting element is blocked, and b) a release position, in which a rotation of the contacting element is made possible, the contact holder body being resiliently preloaded into the locking position. the contact holder body is mounted so as to be adjustable relative to the base body along the axis of rotation between a) a locking position, in which a rotation of the contacting element is blocked, and b) a release position, in which a rotation of the contacting element is made possible, a) a locking position, in which a rotation of the contacting element is blocked, and b) a release position, in which a rotation of the contacting element is made possible, the contact holder body being resiliently preloaded into the locking position.