This European standard specifies requirements for the manufacture, performance and testing of electrically controlled panic exit systems, specifically designed for use in a panic situation on escape routes. These systems consist of at least the following elements: Requesting element integrated in a horizontal bar for requesting the release of electrical locking elements in one single operation in order to exit; Electrical locking element for securing an exit door; Electrical controlling element for supplying, connecting and controlling electrical locking element and requesting element. This European Standard covers panic exit systems placed on the market as a complete unit (e. g. mortise lock, cylinder, keeper, requesting element integrated in a horizontal bar, electrical locking element, electrical controlling element, etc.). The components are tested as a single product. NOTE 1 Panic exit systems should give immediate release at all times, therefore a time delay and/or egress mode are not suitable. NOTE 2 The suitability of an electrically controlled panic exit system for use on fire/smoke resisting door assemblies is determined by fire performance tests conducted in addition to the performance tests required by this European Standard. Annex B indicates additional requirements for these products. NOTE 3 This European Standard covers electrically controlled panic exit systems which are either manufactured and placed on the market in their entirety by one producer or assembled from sub-assemblies produced by more than one producer and subsequently placed on the market as a kit in a single transaction. This doesn't preclude components being delivered separately. The manufacturer is responsible for making it clear in a `list of components' as part of the manufacturer's compulsory installations which combination of components is covered by the ITT.