Bussmann FRN-R-400 - Fusetron Time-Delay Fuse 400A (RK5 Class 250V)

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Regular price $79.59
Regular price $481.93 Sale price $79.59
Save $402.34
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Bussmann FRN-R-400 is a low-voltage current-limiting fuse designed for comprehensive circuit protection in industrial power distribution systems. It features a 400A current rating and 250V voltage rating with a 20kA interrupting capacity at 250V DC for reliable fault interruption. The fuse construction includes a 2.38-inch diameter single-barrel design measuring 8-5/8 inches in length and weighing 2 pounds, built with RK5 class time-delay characteristics. It complies with UL 248-12, CSA Certification Class 1422-01, and CE standards for safety and performance verification. Typical applications include motor branch circuits, feeder circuits, and industrial control panels requiring coordinated protection.

Key Features & Specifications
  • Type: FRN-R Fusetron dual-element time-delay fuse with current-limiting design
  • Voltage Rating: 250V AC/DC
  • Current Rating: 400A
  • Dimensions: 8-5/8 inches length, 2.38 inches diameter
  • Standards: UL 248-12 Guide JDDZ, CSA Certification Class 1422-01, CE
  • Applications: Motor branch circuits, feeder circuits, industrial control panels
  • Class Rating: RK5
  • Barrels: 1
  • AIC rating: 20kA@250Vdc
  • Weight: 2 lb


Product Identification
  • UPC: 051712507530
  • GTIN: 00051712507530
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