Fuses

Mersen aM and gG fuse-links cover a wide range of physical sizes and ampere ratings for 400, 500, and 690VAC for protection in electrical distribution circuits and various industrial applications. Most ratings are available in size 8x31 and size 10x38 with an optional indicator, and in size 14x51 and 22x58 with an optional striker to activate an auxiliary contact. Size 10x38 is also available with striker. All cylindrical fuse-links have ceramic bodies and silver-plated contacts.
Cylindrical fuse-links "aM" are partial range fuses. They protect electrical devices in case of unacceptable high short-circuit against destruction due high current limiting and low thermal let-through values. They cut off currents more than 6.3xln until the maximum breaking capacity (rated breaking capacity). Cylindrical fuse-links "aM" are mainly used for the protection of installation switch gear in otor circuit currents. For classification of the cylindrical fuse-links the nominal current of the fuse-link can be selected respective to the nominal current of the motor.
Our technology and process was designed to ensure highly reliable technical performance.

The D fuse-system is the first generation of screw fuse-system in the german DIN standard. It is still used in many installations.
Applications are low voltage ditribution units, where non trained persons are allowed to change the fuse-links.
The D flink fuse range comprises the sizes NDZ, DII, DIII.

The range of applications for D flink fuse-links is the protection of equipments. The D flink fuse-links, not standardized by the IEC, are fast fuse-links whereas D gG fuse links are considered in comparison as slow fuse-links.