Littelfuse FLNR-150 - Class RK1 Fuse 150A 600V (Low Voltage Protection)

Littelfuse FLNR-150 is a low-voltage current-limiting fuse designed for branch circuit and feeder protection in industrial electrical systems. It features a 150A current rating with a 600V AC voltage rating, providing reliable overcurrent protection in demanding applications. The fuse measures 2-1/4 inches in diameter and 3-1/2 inches in length with a durable ceramic body construction that ensures mechanical strength and thermal stability. It complies with UL Class R rejection requirements and meets industry standards for safe operation. Typical applications include motor control centers, panelboards, and industrial machinery where high-interrupting capacity protection is essential.

Key Features & Specifications

• Type: Current-limiting fuse with ceramic body and time-delay characteristics
• Voltage Rating: 600V AC
• Current Rating: 150A
• Dimensions: 2-1/4" diameter x 3-1/2" length
• Standards: UL Class R, CSA certified
• Applications: Industrial motor protection, feeder circuits, panelboards
• Fuse Class: Class RK1
• Interrupting Rating: 200kA RMS symmetrical
• Weight: 5.19 lb
• Item Subcategory: Low Voltage
• Mounting: Standard fuse clips
• Certification: UL 248-12, CSA C22.2

Product Identification

• Manufacturer: Littelfuse
• Model: FLNR-150