Edison, Cooper Bussmann ECNR40 Low Voltage ECNR Series 250V 40A Fuse - Essential Electric Supply
Edison Fuses ECNR40 - RK5 Class Fuse 40A 250V (200kA AIC)
Edison, Cooper Bussmann ECNR40 Low Voltage ECNR Series 250V 40A Fuse - Essential Electric Supply
Edison Fuses ECNR40 - RK5 Class Fuse 40A 250V (200kA AIC)

Edison Fuses ECNR40 - RK5 Class Fuse 40A 250V (200kA AIC)

Edison Fuses
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Edison Fuses ECNR40 is a low-voltage current-limiting fuse designed for branch circuit and feeder protection in industrial electrical systems. It provides a 40A current rating and a 250V AC voltage rating, with a high 200kA interrupting capacity at that voltage for reliable short-circuit protection. The fuse features a single-barrel, RK5 class construction with a 0.81-inch diameter and measures 8.63 in x 2.38 in x 2.38 in, weighing 1.95 lb. It is engineered to meet industry standards for current-limiting fuses, making it suitable for protecting motor circuits, transformers, and panelboards where high fault current containment is required.

Key Features & Specifications
  • Type: ECNR Series, single-barrel, current-limiting, RK5 class fuse
  • Voltage Rating: 250V AC
  • Current Rating: 40A
  • Dimensions: 8.63 in (L) x 2.38 in (H) x 2.38 in (W)
  • Diameter: 0.81 in
  • Weight: 1.95 lb
  • AIC Rating: 200kA @ 250V
  • Class Rating: RK5
  • Barrels: 1
  • Standards: Industry standards for current-limiting fuses
  • Applications: Protection for industrial motor circuits, transformers, and panelboards


Product Identification
  • UPC: 782634507369
  • GTIN: 00782634507369