Littelfuse FLSR90 POWR-GARD Class RK-5 Time Delay Dual Element Fuse

Littelfuse FLSR90 POWR-GARD Class RK-5 Time Delay Dual Element Fuse

The Littelfuse FLSR90 is a 90-amp, 600 VAC/300 VDC Class RK5 dual-element time-delay fuse, designed to provide exceptional overcurrent protection for a wide range of industrial applications. Its dual-element construction ensures advanced short-circuit and overload protection, making it particularly suitable for circuits with motors and other inductive loads.

Key Features

• Dual-Element Design: Offers superior protection by combining time-delay and current-limiting features, effectively handling both overloads and short circuits.
• Time-Delay Capability: Allows the fuse to withstand temporary inrush currents, reducing unnecessary openings and enhancing system reliability.
• High Interrupting Rating: Capable of interrupting fault currents up to 200,000 amperes, ensuring reliable performance under extreme conditions.
• Current-Limiting Functionality: Restricts the let-through energy during fault conditions, minimizing potential damage to equipment and enhancing safety.

Applications

The FLSR90 fuse is ideal for use in various settings, including:

• Service entrance switches
• Switchboard main and feeder switches
• Motor control center mains and motor branch circuits
• Individual fused combination motor controllers
• Distribution panelboards
• Industrial control panels
• Protection of fully-rated panelboards and load centers
• General-purpose circuits

Specifications

• Amperage Rating: 90 A
• Voltage Rating: 600 VAC / 300 VDC
• Interrupting Rating: 200 kA at AC, 20 kA at DC
• Fuse Class: RK5
• Body Style: Cylindrical, Rejection
• Mounting Type: Holder
• Terminal Connection: Knife Blade
• Dimensions: 1-5/16 in diameter x 7-7/8 in length
• Element Type: Dual
• Response Time: 10 seconds at 500% overload
• Standards: UL File Number E81895, CSA File Number LR29862, Federal Specification WF-1814, CE Certified

By incorporating the Littelfuse FLSR90 fuse into your electrical systems, you ensure robust protection against overcurrent conditions, enhancing both safety and operational efficiency.