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Littelfuse L50QS800 - High-Speed Fuse 500V 800A (200kA AIC)

Littelfuse
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The Littelfuse L50QS800 is a high-speed semiconductor fuse from the Powr-Speed family, designed for the overcurrent protection of power diodes, thyristors, and IGBTs in low-voltage circuits. This round body fuse is rated for 500V AC/DC and carries a continuous current of 800A, with an interrupting rating of 200kA at 500V to safely clear high fault currents. It features a single barrel construction with a 2.5-inch diameter, weighing 3 lb, and is built for robust performance in demanding industrial environments. The fuse complies with industry standards for semiconductor protection, ensuring reliable operation in power conversion equipment. Typical applications include variable frequency drives, UPS systems, and DC power supplies where fast-acting protection is critical.

Key Features & Specifications
  • Type: L50QS Series – High-Speed Semiconductor Fuse, Round Body
  • Voltage Rating: 500V
  • Current Rating: 800A
  • AIC Rating: 200kA@500V
  • Barrels: 1
  • Diameter: 2.5
  • Weight: 3 lb
  • Item Subcategory: Low Voltage
  • Family: Powr-Speed


Product Identification
  • UPC: 079458860146