The SIEM function module from Siemens is an essential accessory for circuit breakers of the 3WA series. It provides a comprehensive solution for the basic protection of electrical installations with a rated current of up to 4000 A. This module is specifically designed for use in combination with SENTRON open circuit breakers and enables an enhanced earth fault protection function characterized by an extended adjustment range. The robust construction and high reliability of the module make it an ideal choice for demanding applications in drive technology. Manufactured in Hungary, the product meets the high standards of the industry and contributes to the efficiency and safety of electrical systems. The function module is an indispensable element for professionals who value quality and performance.