Littelfuse IDSR040 - RK5 Dual-Element Time-Delay Fuse 40A@600V (200kA AIC)

Littelfuse IDSR040 is a UL Class RK5 dual-element time-delay fuse designed for overcurrent protection in industrial electrical systems. Rated for 600V AC/DC applications with a 40A current capacity, it features a 200kA interrupting rating and visual indication for fault detection. The fuse measures 1.06" in diameter with a single-barrel construction and weighs 0.35 lb, compliant with IEC 60127-2 standards. Its time-delay characteristics make it suitable for motor circuits, transformers, and branch circuit protection where inrush currents occur.

Key Features & Specifications

• Type: UL Class RK5 dual-element time-delay fuse with visual indication
• Voltage Rating: 600V AC/DC
• Current Rating: 40A
• Dimensions: 1.06" diameter
• Standards: IEC 60127-2 compliant
• Applications: Motor circuits, transformers, branch circuit protection
• Class Rating: RK5
• Barrels: 1
• AIC rating: 200kA@600V
• Weight: 0.35 lb

Product Identification

• UPC: 07945801564
• GTIN: 00079458015645