IDSR400 Littelfuse IDSR Series - UL Class RK5 Dual-Element Time Delay Fuses with Indication Low Voltage Fuse 600V 400A Fuse - Essential Electric Supply
IDSR400 Littelfuse IDSR Series - UL Class RK5 Dual-Element Time Delay Fuses with Indication Low Voltage Fuse 600V 400A Fuse - Essential Electric Supply
IDSR400 Littelfuse IDSR Series - UL Class RK5 Dual-Element Time Delay Fuses with Indication Low Voltage Fuse 600V 400A Fuse - Essential Electric Supply
IDSR400 Littelfuse IDSR Series - UL Class RK5 Dual-Element Time Delay Fuses with Indication Low Voltage Fuse 600V 400A Fuse - Essential Electric Supply
IDSR400 Littelfuse IDSR Series - UL Class RK5 Dual-Element Time Delay Fuses with Indication Low Voltage Fuse 600V 400A Fuse - Essential Electric Supply
IDSR400 Littelfuse IDSR Series - UL Class RK5 Dual-Element Time Delay Fuses with Indication Low Voltage Fuse 600V 400A Fuse - Essential Electric Supply
IDSR400 Littelfuse IDSR Series - UL Class RK5 Dual-Element Time Delay Fuses with Indication Low Voltage Fuse 600V 400A Fuse - Essential Electric Supply
IDSR400 Littelfuse IDSR Series - UL Class RK5 Dual-Element Time Delay Fuses with Indication Low Voltage Fuse 600V 400A Fuse - Essential Electric Supply
IDSR400 Littelfuse IDSR Series - UL Class RK5 Dual-Element Time Delay Fuses with Indication Low Voltage Fuse 600V 400A Fuse - Essential Electric Supply
Littelfuse IDSR400 - RK5 Time-Delay Fuse 400A@600V (200kA AIC)
IDSR400 Littelfuse IDSR Series - UL Class RK5 Dual-Element Time Delay Fuses with Indication Low Voltage Fuse 600V 400A Fuse - Essential Electric Supply
IDSR400 Littelfuse IDSR Series - UL Class RK5 Dual-Element Time Delay Fuses with Indication Low Voltage Fuse 600V 400A Fuse - Essential Electric Supply
IDSR400 Littelfuse IDSR Series - UL Class RK5 Dual-Element Time Delay Fuses with Indication Low Voltage Fuse 600V 400A Fuse - Essential Electric Supply
IDSR400 Littelfuse IDSR Series - UL Class RK5 Dual-Element Time Delay Fuses with Indication Low Voltage Fuse 600V 400A Fuse - Essential Electric Supply
IDSR400 Littelfuse IDSR Series - UL Class RK5 Dual-Element Time Delay Fuses with Indication Low Voltage Fuse 600V 400A Fuse - Essential Electric Supply
IDSR400 Littelfuse IDSR Series - UL Class RK5 Dual-Element Time Delay Fuses with Indication Low Voltage Fuse 600V 400A Fuse - Essential Electric Supply
IDSR400 Littelfuse IDSR Series - UL Class RK5 Dual-Element Time Delay Fuses with Indication Low Voltage Fuse 600V 400A Fuse - Essential Electric Supply
IDSR400 Littelfuse IDSR Series - UL Class RK5 Dual-Element Time Delay Fuses with Indication Low Voltage Fuse 600V 400A Fuse - Essential Electric Supply
IDSR400 Littelfuse IDSR Series - UL Class RK5 Dual-Element Time Delay Fuses with Indication Low Voltage Fuse 600V 400A Fuse - Essential Electric Supply
Littelfuse IDSR400 - RK5 Time-Delay Fuse 400A@600V (200kA AIC)

Littelfuse IDSR400 - RK5 Time-Delay Fuse 400A@600V (200kA AIC)

Littelfuse
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Littelfuse IDSR400 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 400A current capacity with a 200kA interrupting rating at 600V for high-fault protection. The fuse has a cylindrical design with a 2.59" diameter and 3.48 lb weight, constructed for durability in demanding environments. Compliant with UL Standard 248-12 and CSA certifications, it meets rigorous safety requirements. Typical applications include motor protection, transformer circuits, and industrial power distribution systems where time-delay characteristics and fault indication are critical.

Key Features & Specifications
  • Type: UL Class RK5 dual-element time-delay fuse with visual indication
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 2.59" diameter
  • Standards: UL 248-12, CSA certified
  • Applications: Motor protection, transformer circuits, industrial power distribution
  • Class Rating: RK5
  • Barrels: 1
  • AIC rating: 200kA@600V
  • Weight: 3.48 lb
  • Certification: UL Listed/CSA
Product Identification
  • UPC: 007945801582
  • GTIN: 00079458015829