Fuses

Mersen low-voltage capacitor fuses provide advanced safety for power correction and harmonic filtering equipment. A capacitor fuse isolates a shorted capacitor before it can damage surrounding equipment or personnel. Typical capacitor failures occur when the internal dielectric can no longer withstand the applied voltage, resulting in a low impedance current path and generating excessive heat and pressure that can cause violent case rupture. Mersen A60C fuses will isolate the shorted capacitor before case rupture occurs while routinely withstanding inrush current at startup.

Mersen surge suppression fuses are specially designed to address the protection of SPD systems. Our surge suppression fuses have been specially designed to withstand 8/20 μSec surge pulses without opening, allowing the SPD system to react to the surge. All surge suppression fuses have a 8/20 μSec surge rating, not a continuous current rating. Under AC short circuit conditions these surge suppression fuses are very current limiting.