
Littelfuse FLSR-400 - Class RK5 Fuse 400A@600V (200kA AIC)
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Littelfuse FLSR-400 is a Class RK5 low-voltage fuse designed for circuit protection in industrial power distribution systems. It features a 600V AC rating with a 400A current capacity and 200kA interrupting rating at 600V for reliable short-circuit protection. The fuse has a compact plug-in design with a single-barrel construction, measuring 2.59" in diameter and weighing 3 lb for easy panel mounting. Compliant with industry standards for Class RK5 fuses, it provides time-delay characteristics to withstand temporary overloads while maintaining sensitive fault protection. Typical applications include motor control centers, switchgear, and industrial control panels requiring high interrupting capacity.
Key Features & Specifications
Key Features & Specifications
- Type: Class RK5 time-delay fuse with single-barrel construction
- Voltage Rating: 600V AC
- Current Rating: 400A
- Dimensions: 2.59" diameter
- Standards: UL/CSA Class RK5 compliant
- Applications: Industrial power distribution, motor protection, switchgear
- Connection: Plug-In
- Barrels: 1
- AIC rating: 200kA@600V
- Weight: 3 lb
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