Littelfuse IDSR500 - RK5 Time-Delay Fuse 500A@600V (200kA AIC)

Littelfuse IDSR500 is a UL Class RK5 dual-element time-delay fuse designed for industrial circuit protection with visual indication. Rated for 600V AC/DC systems with a 500A current capacity, it features a 200kA interrupting rating at 600V for high-fault protection. The fuse has a single-barrel construction with a 3.09" diameter and 2 lb weight, meeting UL Standard 248-12 and CSA certifications. Its time-delay characteristics prevent nuisance tripping while providing reliable overload and short-circuit protection for motor circuits, transformers, and power distribution equipment.

Key Features & Specifications

• Type: UL Class RK5 dual-element time-delay fuse with indication
• Voltage Rating: 600V AC/DC
• Current Rating: 500A
• Dimensions: 3.09" diameter
• Standards: UL 248-12, CSA certified
• Applications: Motor circuits, transformers, power distribution
• Class Rating: RK5
• Barrels: 1
• AIC rating: 200kA@600V
• Weight: 2 lb
• Country of Origin: Mexico

Product Identification

• UPC: 07945801584
• GTIN: 00079458015843