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Littelfuse Introduces Compact, Surge-Tolerant Fuses for High Lightning Exposure Applications

Fri, 09/06/2013 - 3:13pm
WDD Staff

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Littelfuse (Chicago, IL) has introduced two series of compact, high surge withstand fuses, both capable of withstanding up to 20 lightning-induced high current surges without performance degradation. The 328 and 688 Series fuses offer protection superior to that of circuit breakers, providing short-circuit and overload protection and ensuring long-term reliability for outdoor applications that operate at high surge exposure levels. They also reduce the level of nuisance fuse tripping caused by indirect lightning surges. The 328 is optimized for outdoor LED lighting applications to protect surge protection devices (SPDs) and luminaries. Both the 328 and 688 can be used in power distribution equipment used in wireless telecommunication base transceiver stations. They are available in both cartridge and axial-leaded packages. Features include:

  • Slow blow ceramic fuse with a remarkable breaking capacity (interrupting rating) of 2,500 A @ 70 VDC.
  • Enhances over-current and short-circuit protection; reduces power downtime caused by nuisance activation caused by indirect lightning surge.
  • Small fuse body makes it easier to place in outdoor luminaire and telecom equipment in BTS and ISP datacenters.

For more information, visit www.littelfuse.com.

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