The Mersen product range includes an extensive range of innovative UltraSafe¿ fuse holders. The modular fuse holders are finger-safe according to IEC and comply with protection class IP20 even during fuse replacement. UltraSafe¿ are available in 1-, 2-, 3- or 4-pole versions. Mersen offers 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. In this size, microswitches can optionally be used for remote indication. These are supplied with the fuse holder or can be retrofitted as an accessory. UltraSafe¿ products offer optimal mechanical and thermal resistance.