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Thomas & Betts JRFA644F - Industrial Fuse 600V 400A (Russellstoll)

Thomas & Betts
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The Thomas & Betts JRFA644F, manufactured by Russellstoll, is a heavy-duty industrial fuse designed for overcurrent protection in high-power electrical systems. It is rated for 600V AC/DC and carries a current rating of 400A, ensuring robust performance in demanding environments. The fuse features a compact, durable construction with a weight of 5.4 lb, built to withstand high fault currents and thermal stress. It complies with UL and CSA standards for safety and reliability, making it suitable for use in industrial power distribution, motor control centers, and switchgear applications.

Key Features & Specifications
  • Type: Industrial fuse, high-speed or current-limiting operation
  • Voltage Rating: 600V AC/DC
  • Current Rating: 400A
  • Weight: 5.4 lb
  • Standards: UL listed, CSA certified
  • Applications: Power distribution, motor protection, switchgear


Product Identification
  • UPC: 70891714323
  • GTIN: 00708917143239