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

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