Littelfuse LLSRK-90ID - RK1 Time-Delay Fuse 90A (300kA AIC @600V)

Littelfuse LLSRK-90ID is a low-voltage time-delay fuse from the Powr-Gard family, designed for circuit protection in industrial power distribution systems. It features a 600V AC rating with a 90A current capacity and a 300kA interrupting rating at 600V AC for high-fault protection. The fuse has a compact 1.31-inch diameter clip-connected design with a single barrel construction, meeting RK1 class standards for reliable time-delay performance. It complies with industry safety requirements for electrical protection devices. Typical applications include motor control centers, transformers, and feeder circuits where selective coordination is critical.

Key Features & Specifications

• Type: LLSRK_ID time-delay fuse, RK1 class, clip connection
• Voltage Rating: 600V AC
• Current Rating: 90A
• Dimensions: 1.31" diameter
• Standards: RK1 class, 300kA AIC at 600V AC
• Applications: Industrial power distribution, motor protection, feeder circuits
• Connection: Clip
• Barrels: 1
• AIC rating: 300kA@600Vac
• Weight: 15 lb