Surge arrester Type 2 UC 600V AC plug-in protection modules, 3-pole, 3+0 configuration for IT systems without MITG. Neutral conductor with remote signaling contact. Surge protection devices to protect against surges in electrical installations. Siemens surge protection devices, as an essential component of the SENTRON protection systems 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. The Siemens surge protection devices are particularly characterized by: 1. Effective investment and plant protection against lightning and surges. 2. The right lightning and surge protection for every application (Type 1 to 3). 3. Remote signaling contact for external upload.