DIGSI 5 is the versatile engineering tool for parameterization, commissioning and operating all SIPROTEC 5 devices. Its innovative user interface includes context-sensitive user instructions. DIGSI 5 offers superior usability and is optimized for your work processes. Only the information you actually need to carry out your tasks is shown. These can be reduced further using expanded filter mechanisms.


The SIPROTEC 5 series is based on the long field experience of the SIPROTEC device series, and has been especially designed for the new requirements of modern high-voltage systems. For this purpose, SIPROTEC 5 is equipped with extensive functionalities and device types.


SIPROTEC 4 has established itself on the energy market for decades as a powerful and complete system family of numerical protection relays and bay controllers from Siemens. The devices have also been certified by independent test institutes and universities (KEMA, EPRI, LOYD, UR Laboratories).