Littelfuse IDSR450 - RK5 Dual-Element Time-Delay Fuse 450A@600V (200kA AIC)

Littelfuse IDSR450 is a UL Class RK5 dual-element time-delay fuse designed for industrial circuit protection with visual indication. It features a 600V AC rating and 450A current capacity, housed in a durable 3.09-inch diameter barrel construction weighing 2 lb. The fuse meets UL Standard 248-12 and CSA certifications with a 200kA interrupting capacity at 600V. Typical applications include motor branch circuits, transformer protection, and industrial power distribution systems requiring time-delay characteristics.

Key Features & Specifications

• Type: UL Class RK5 dual-element time-delay fuse with visual indication
• Voltage Rating: 600V AC
• Current Rating: 450A
• Dimensions: 3.09" diameter, single-barrel design
• Standards: UL 248-12, CSA certified
• Applications: Motor circuits, transformer protection, industrial power distribution
• Class Rating: RK5
• AIC rating: 200kA@600V
• Weight: 2 lb
• Country of Origin: Mexico

Product Identification

• UPC: 07945801583
• GTIN: 00079458015836