Raycap Inc., a leader intransient voltage surge suppression technology, has developed asurge protection device (SPDs) that provides continuous protectionfrom over-voltage and other transient voltage activity forindustrial equipment such as variable speed drives (VSDs),programmable logic controls (PLCs) and power cabinets.Designated Strikesorb, the SPD modules are designed to protectequipment from lightning strikes, power surges and spikes withoutperformance deterioration.Strikesorb modules are available in awide range of voltage and packaging configurations to protectsensitive equipment and electronics.Strikesorb modules meet the demanding requirements of IEC 61643-1and UL 1449 2nd Edition - dated February 7, 2007 - without the useof internal fuses. Fuses used in other surge protection devices cancompromise the protection capabilities of the SPD system.Strikesorb's unique fuseless design and its capability to withstandhigh short-circuit currents allow direct installation on busbars,precluding the need to install additional fuses or interconnectionwires. Because Strikesorb modules provide uninterrupted protectionagainst repeated surges in harsh environments, it can extend theoperating life of the industrial equipment, as it is never leftunprotected from transient activity."Our Strikesorb modules have successfully passed 3-cycle testingat available short circuit currents of up to 100kA. The SPD caneasily be integrated in equipment without the need to conductadditional UL testing," said Jeff Gibbons, VP Sales and Marketingat Raycap Inc. "Because equipment that incorporates Strikesorbmodules do not require further UL 1449 testing in order to meetUL Listing requirements, equipment manufacturers can savemoney while getting their products to market faster."Unlike other SPD systems that employ parallel arrays of smallerconventional metal oxide varistors (MOVs) or silicon avalanchediodes (SADs), Strikesorb modules are comprised of a single,large distribution-grade MOV disc in an environmentally sealedaluminum housing that provides uniform distribution of the surgecurrent over the total area of the MOV protection element. Thisresults in a high-energy handling capability combined with ultra-lowlet-through voltage to the industrial equipment. The monolithicdesign also provides a straight electrical path directly to thesuppression element, providing extremely low contact resistanceand a superior heat dissipation mechanism to prevent aging andpremature failures of the SPD.
