Fuses

Mersen's 5ST miniature fuses cover a range including multiple amperages for 250VAC, for the protection of electrical distribution circuits and other industrial applications. 5ST miniature fuses are time-delay fuses that protect your electrical equipment while withstanding the high, sudden, short current that allows a motor to start. All our technology and processes are defined to ensure the best technical performance.

Mersen's 3SF miniature fuses cover a range including multiple amperages for 60VAC to 250VAC, for the protection of electrical distribution circuits and other industrial applications. These fuses are available in size 6x32. 3SF miniature fuses are fast-acting fuses that protect your electrical equipment from the slightest high current. All our technology and processes are designed to ensure the best technical performance.

FR-type fuses are designed to protect HV/LV power distribution transformers. Designed to be coordinated with other equipment, these current limiting fuse-links interrupt fault currents before they reach their peak. The fault current is interrupted inside the fuse-link body and although this is very fast, there is no sign of it outside.
The 24kV fuses were specially designed with very low power losses, for use in SF6-insulated or compact air-insulated fused switchgear combinations
The main elements in these fuses are: a barrel of class F insulating synthetic material, nickel plated aluminium end contacts, pure silver fuse elements and a composite material fuse element holder to withstand high temperatures.
Thanks to their structure, based on a synthetic material, FR fuse-links are the perfect answer to the stress involved in use inside HV bays and fuse-link chambers.