FLNR080 - 80 Amp Fuse

FLNR080 - 80 Amp Fuse

When your circuit must handle startup current without sacrificing reliable overcurrent protection, the FLNR080 80 Amp Class RK5 fuse is built for the job. This dual-element, time-delay fuse is rated for 80 amps, up to 250 VAC and 125 VDC, and uses a knife-blade design for installation in compatible fuse blocks, clips, and holders. The time-delay characteristic is especially useful around motors, transformers, and other equipment that can draw a temporary current surge when starting.

Key Features and Benefits

• 80A current rating for appropriately sized commercial and industrial circuits.
• Rated for applications up to 250 VAC and 125 VDC.
• Dual-element, Class RK5 construction provides overload and short-circuit protection.
• Time-delay operation helps accommodate normal temporary startup and inrush currents.
• Current-limiting performance helps reduce the fault current that can flow through the circuit during a short circuit.
• High interrupting capability makes the FLNR080 suitable for systems where significant available fault current may be present.
• Knife-blade configuration fits compatible Class R fuse blocks, clips, and holders.
  

Technical Specifications

• Catalog Number: FLNR080
  
• Series: FLNR
  
• Fuse Class: Class RK5
  
• Fuse Type: Dual Element
  
• Current Rating: 80 A
  
• Maximum AC Voltage: 250 VAC
  
• Maximum DC Voltage: 125 VDC
  
• Interrupting Rating: 300 kA AC; 20 kA DC
  
• Opening Characteristic: Slo-Blo / Time Lag / Time Delay
  
• Construction / Size: Knife-Blade
  
• Indicating: No
  
• Mounting Method: Fuse Block / Clip / Holder
  
• Compatible Holder: LFR25100 Series
  

Material Compliance and Certifications

The FLNR080 belongs to the Class RK5 fuse category. For applications that require specific regulatory, environmental, or material compliance documentation, the applicable certification information should be verified against the documentation for the exact FLNR080 catalog number. This is particularly important when a project has requirements involving RoHS, REACH, UL, CSA, or other material and safety standards.

Where It Works Best

The FLNR080 fuse makes the most sense in applications where equipment can draw considerably more current for a few moments at startup than during normal operation. Motor circuits, transformers, feeders, service equipment, motor control equipment, and general industrial power distribution systems are common examples.

That time-delay characteristic matters. A fast-opening fuse can respond to a temporary startup surge even when nothing is actually wrong with the equipment. The FLNR080 provides an appropriately designed circuit with sufficient capacity to handle normal inrush current while remaining ready to respond to a genuine overload or short-circuit condition.