Littelfuse LLSRK-125ID is a low-voltage RK1-class fuse from the Powr-Gard family, designed for high-interrupting circuit protection in industrial electrical systems. It features a 600V AC voltage rating and 125A current rating, with a 300kA interrupting capacity at 600V AC for reliable fault isolation. The fuse has a compact cylindrical design with a 1.84" diameter and clip-style connections, constructed as a single-barrel unit weighing 15 lb. It meets industry standards for RK1 fuses, providing time-delay characteristics for motor and transformer protection. Typical applications include panelboards, switchgear, and industrial control equipment requiring high-fault current protection.
Key Features & Specifications - Type: Low-voltage time-delay fuse (RK1 class)
- Voltage Rating: 600V AC
- Current Rating: 125A
- Dimensions: 1.84" diameter
- Standards: RK1 classification
- Applications: Industrial panelboards, switchgear, motor circuits
- Connection: Clip-style terminals
- Barrels: 1
- AIC rating: 300kA@600V AC
- Weight: 15 lb
- Class Rating: RK1