FLSR400 - Littelfuse 400A 600V Class RK5 Dual-Element Time-Delay Fuse Knife-Blade

FLSR400

FLSR400 is a Littelfuse Class RK5 dual-element time-delay fuse designed for reliable circuit protection in a variety of industrial and commercial applications. This fuse features a knife-blade construction and is rated for 400A continuous current and 600V AC maximum voltage. The FLSR400 provides advanced short-circuit and overload protection with a dual-element design, making it suitable for use in service entrance switches, transformers, switchboard mains, feeders, and motor control circuits. Its time-delay characteristic allows for temporary overloads without nuisance tripping, while the current-limiting feature restricts fault currents for enhanced safety.

• Part Number: FLSR400
• Manufacturer: Littelfuse
• Current Rating: 400A
• Maximum AC Voltage: 600V
• DC Voltage Rating: 300V
• Interrupting Rating: 200 kA rms symmetrical AC
• Fuse Class: Class RK5
• Construction: Knife-Blade
• Element Type: Dual-Element
• Response Type: Time-Delay
• Mounting: Fuse Block / Clip / Holder
• Standards: UL 248-12

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Specifications

• Part Number: FLSR400
• Manufacturer : Littelfuse
• Brand : Littelfuse
• Category : Fuse
• Item Subcategory : Low Voltage Fuse
• Family : FLSR Series - UL Class RK5 Dual-Element Time-Delay Fuses
• Type : FLSR Series - UL Class RK5 Dual-Element Time-Delay Fuses
• Voltage : 600
• Amperage : 400
• AIC rating : 200kA@600V
• Diameter : 2.59
• Class Rating : RK5
• Barrels : 1

Product Data

• UPC : 07945817093
• GTIN : 00079458170931
• Country of Origin : Mexico
• Dimensions : x 11-5/8 in x
• Weight : 2
• Certification : CE, UL 248-12 Class RK5, CSA Certification, QPL-W-F-1814