NON-4 - Essential Electric Supply
NON-4 - Essential Electric Supply

Bussmann NON-4 - K5 Time-Delay Fuse 4A 250V

Bussmann
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The Bussmann NON-4 is a low-voltage, time-delay fuse designed for branch circuit and feeder protection in industrial electrical systems. It features a 4A current rating and a 250V AC voltage rating, with a high interrupting capacity of 50kA to safely clear fault currents. The fuse is constructed as a single-barrel, 1/4" x 1-1/4" (0.56 in x 2 in) cylindrical device with a Class K5 rating, ensuring a specific time-current characteristic for motor and transformer inrush protection. It complies with major industry standards including UL and CSA, making it suitable for use in control circuits, motor starters, and transformer primaries where reliable, time-delay overcurrent protection is required.

Key Features & Specifications
  • Type: Low-voltage, time-delay, single-barrel cartridge fuse
  • Voltage Rating: 250V AC
  • Current Rating: 4A
  • Dimensions: 0.56 in (D) x 2 in (H) x 0.56 in (W)
  • Diameter: 1.06 in
  • Weight: 0.35 lb
  • Class Rating: K5
  • AIC Rating: 50,000 Amps @ 250V AC
  • Standards: CE, UL Listed (File E4274), CSA Certified (File 53787, Class 1421-01)
  • Applications: Motor circuit protection, transformer primary protection, industrial control circuits
  • Country of Origin: Mexico


Product Identification
  • UPC: 051712300049
  • GTIN: 00051712300049