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