High-Speed Class J Fuses - Ferraz Fuses & Mersen Products

1 High-Speed Class J FusesAdvanced protection for drives and soft-startersGross Automation (877) 268-3700 Automation (877) 268-3700 manufacturers of drives and soft-starters havesought to reduce costs by eliminating internal semiconductor fusing. This now leaves equipmentvulnerable to component failure, and f alls short of codebranch circuit requirements. Therefore, it becomes theend users responsibility to protect the drives and soft-starters, while also providing branch circuit protection. Ferraz Shawmut has developed an innovative solution to this problem, the UL listed Class J fuse (HSJ)designed specifically to fit the operating parameters ofdrives and soft-starters, and protect the internal powerelectronic HSJ combines the following features.

2 Semiconductor protection (very low I2t) Compliance to NEC (branch circuit protection) Mirrors operating characteristics of electronicmotor controllers Capable of protecting overloads down to 135% of fuse ratingBy using Ferraz Shawmut HSJ Fuses not only are theNEC safety requirements and the equipment integritymaintained, but the price of replacing costly equipmentis also Need for code compliance and semi-conductoFeatures & Benefits UL listed to 248-8 UL Class J dimension CSA certified to 600 VAC/500 VDC 15A to 600A 200 kA interrupting r ating Very low I2t Protects most semiconductor devices Can be used with ULTRASAFE fuse holders for finger-safe protection (up to 60A)

3 Easily coordinated with drives and soft startersThe Ferraz Shawmut solution: high speed Class J fusesWhy let short cuts result in costly short circuits?Gross Automation (877) 268-3700 o t e c t i o nThe HSJ can be used in fusible disconnect switches,providing code branch circuit protection. It can also protect power semiconductors without theneed for additional protective ll find theHSJ in a broadrange of amp ratings from 15A to 600A, UL listed to ( Class J).Gross Automation (877) 268-3700 and more, from your circuit protection Class J Fuses are just one example of theinnovative Products and features engineered by FerrazShawmut your circuit protection Products to meet every major global standard and a worldwide sales and service network, the depth of FerrazShawmut s solutions is unmatched in the industry.

4 Anddon t forget technical support from applications specialistsand experts on international learn more information about high speed Class J Fuses visit , contact your Ferraz Shawmut representative or call us at HSJ is the onlyproduct availablecapable of providingNEC branch circuitprotection andpower electronicsprotection in onepackage!Gross Automation (877) 268-3700 2003 Ferraz Shawmut HSJ2003 Q10000 Gross Automation (877) 268-3700