Surge arrester Type 2, requirement class C, UC 260V. Plug-in protection modules, single-pole, N-PE circuit. Surge protection devices to protect against surges in electrical systems. Siemens surge protection devices, as an essential component of the SENTRON protection components for electrical installations, provide effective protection against lightning and surges caused by atmospheric influences or switching operations. Convenient mounting and connection technology, as well as a consistent design, are the hallmarks of this device family. Whether for infrastructure or industrial requirements, Siemens offers surge protection devices for all applications and every area of use. Siemens surge protection devices are characterized by: 1. Effective investment and system protection against lightning and surges. 2. The right lightning and surge protection for every application case (Type 1 to 3). 3. Remote signaling contact for external status indication upload. 4. Reliable protection function.