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Mersen's Helioprotection line of fuses are engineered and designed specifically for the protection of strings and combiner boxes in photovoltaic systems.

The offering encompasses a complete range of NH Switch Fuse Disconnectors and any class of NH power fuses: gG, aM, gTr.

Mersen's Amp-Trap Round Body high speed fuses product line encompasses a wide variety of voltage ratings and performance, making it ideal for protecting a wide variety of power electronic applications.

Mersen Protistor® square body fuses are available in eight different body sizes, each size having more than seven worldwide acceptable mounting styles, provide maximum flexibility in equipment design and ultimate protection.

Tri-Onic RK5 current-limiting time-delay fuses are engineered for overcurrent protection of motors, transformers, service entrance equipment, feeders and branch-circuits.

Significantly more current-limiting than Class RK5, K and H fuses, Mersen’s Class RK1 fuses are ideal for upgrading your existing feeder and branch circuits to arc flash category “0”.

Mersen’s TPMOV® technology eliminates common failure modes that occur in the field with standard metal oxide varistors.

Designed with the industry leading Mersen TPMOV® Technology, NEMA UL SPD meets requirements for UL1449 5th Edition.

Surge-Trap® Modular Surge Protective Device (SPD) is a no-fuse, fail-safe surge suppressor featuring Mersen’s patented TPMOV® technology inside. UL 1449 5th Edition approved, it is DIN-rail mountable featuring a fail-safe self-protected design, visual indicator, and a small footprint.

The innovative and comprehensive Modulostar® range of Mersen fuse-holders is finger-safe under IEC standards to an IP20 grade of protection. Modular fuse-holders are available in 1, 2, 3 or 4 poles, with or without visual blown fuse indicator.