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When it comes to designing power inverters, our customers require power stages or power stacks with enhanced power density (kW/liter) while minimizing conversion losses (Efficiency %), reducing cost ($/kW) and shrinking size and weight of the overall system.

For decades, Mersen has designed and manufactured a comprehensive portfolio of heat exchangers using various technologies (blocs, tubes) and the materials (graphite, SiC, zirconium, titanium). These heat exchangers can be installed as condensers, heaters, coolers...in the corrosive chemical processes..

Mersen UltraSafe Modular 600 Volt Fuse Holders for Class J fuses introduce a new level of safety and ease for installing or replacing Class J fuses. UltraSafe holders qualify as “finger-safe” to an IP20 grade of protection under IEC standards. The US3J accommodates 30A Class J or 22 x 58 mm French Ferrule* fuses. The US6J is for 60A Class J fuses. UltraSafe holders are available in compact 1, 2, or 3 pole units, with or without blown-fuse indicators in each pole. Multi-pole units can also be made up in the field by using the multiplepole Assembly Kits. All units have provisions for locking in the open position for safety during fuse changeouts or equipment servicing. US3J and US6J holders can be snap-mounted to 35 mm DIN-rail and they have a unique latch which will stay open to allow re-positioning of the holder in the future. UltraSafe body material is tough and durable polyamide.
*Holder not UL listed when installed with French Ferrule fuses.
RECOMMENDED FUSE USAGE:
*US3J, US6J use with AJT, A4J, HSJ