OT40 Mersen OT Series Low Voltage Fuse 250V 40A Fuse - Essential Electric Supply
OT40 Mersen OT Series Low Voltage Fuse 250V 40A Fuse - Essential Electric Supply

Cutler Hammer OT40 - Class K-5 Time-Delay Fuse 40A 250V (50kA AIC Rating)

Cutler Hammer
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The Cutler Hammer OT40 is a Class K-5 time-delay fuse designed for industrial circuit protection applications requiring reliable overload and short-circuit interruption. This 40A rated fuse operates at 250V AC with an impressive 50kA interrupting capacity, housed in a compact 3-inch long single-barrel construction featuring a 0.81-inch diameter. Manufactured to meet industry standards for low-voltage protection devices, this Eaton OT Series component provides essential safeguarding for motor circuits, transformers, and feeder distribution systems where selective coordination and time-delay characteristics are critical for operational continuity.

Key Features & Specifications
  • Type: Class K-5 time-delay fuse, single barrel construction
  • Voltage Rating: 250V AC
  • Current Rating: 40A
  • Dimensions: 3 inches long x 0.81 inches diameter
  • Standards: Industrial low-voltage fuse standards
  • Applications: Motor circuits, transformers, feeder distribution systems
  • AIC rating: 50kA@250V
  • Class Rating: K-5
  • Barrels: 1
  • Weight: 0.08 lb
  • Family: OT Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 782001700164
  • GTIN: 00782001700164