The Mersen product range includes an extensive range of innovative fuse holders. The modular fuse holder Modulostar is finger-safe according to IEC and has an IP20 protection rating even during fuse replacement. 1-, 2-, 3- or 4-pole versions are available in variants with or without optical fuse monitoring, in UL and IEC versions. With a mounting kit, single-pole units can be combined to form multi-pole units. The Modulostar offers optimal mechanical and thermal resistance and is used to protect drives, motors and transformers in low-voltage distribution and control systems. It can only be switched when the power is off.