Littelfuse IDSR050 - RK5 Dual-Element Time-Delay Fuse 50A 600V (200kA AIC)

Littelfuse IDSR050 is a UL Class RK5 dual-element time-delay fuse designed for circuit protection in industrial applications, featuring visual indication for blown fuse detection. It operates at 600V AC with a 50A current rating and 200kA interrupting capacity, housed in a cylindrical 1.06-inch diameter body weighing 3.29 lb. The fuse meets UL 248-12 and CSA standards with RK5 classification, constructed for reliable time-delay performance in high-fault current environments. Typical applications include motor branch circuits, transformers, and power distribution panels requiring dual-element protection against overloads and short circuits.

Key Features & Specifications

• Type: UL Class RK5 dual-element time-delay fuse with visual indication
• Voltage Rating: 600V AC
• Current Rating: 50A
• Dimensions: 1.06" diameter
• Standards: UL 248-12, CSA certified
• Applications: Motor circuits, transformers, power distribution
• Class Rating: RK5
• Barrels: 1
• AIC rating: 200kA@600V
• Weight: 3.29 lb

Product Identification

• UPC: 07945801566
• GTIN: 00079458015669