Littelfuse KLSR400 - RK1 Class Fuse 400A@600V (200kA AIC)

Littelfuse KLSR400 is a low-voltage current-limiting fuse designed for high-performance circuit protection in industrial applications. It features a 600V AC/DC voltage rating and 400A current rating with a 200kA interrupting capacity at 600V, housed in a compact 0.81-inch diameter RK1-class body with single-barrel construction. The fuse meets industry standards for reliable overcurrent protection in demanding environments, commonly used in motor control centers, switchgear, and power distribution systems.

Key Features & Specifications

• Type: KLSR-series current-limiting fuse with time-delay characteristics
• Voltage Rating: 600V AC/DC
• Current Rating: 400A
• Dimensions: 0.81" diameter
• Standards: UL/CSA recognized
• Applications: Industrial power distribution, motor protection
• Class Rating: RK1
• AIC rating: 200kA@600V
• Barrels: 1
• Weight: 2 lb

Product Identification

• UPC: 07945829093
• GTIN: 00079458290936