FRN-R-100 - 100Amp Fuse

FRN-R-100 - 100Amp Fuse

Need to replace an FRN-R-100 fuse and want to make sure the specifications align? This 100A Class RK5 dual-element fuse is rated for 250V AC and 125V DC and uses blade-end connections on both ends. Put those details together with its compact 2.1-inch length and non-indicating configuration, and you have a clearly defined fuse that's easier to check against an existing installation.

Key Features and Benefits

• 100A Class RK5 configuration – Gives you two of the most important specifications up front when identifying the correct replacement fuse.
• Dual-element construction – Matches applications specifically requiring this type of fuse construction and operating characteristic.
• 250V AC rating – Suitable for compatible AC equipment operating within the fuse's published ratings.
• 125V DC rating – The FRN-R-100 isn't limited to AC; it also has a published DC voltage rating.
• 10-second response at 500% – Manufacturer-specified response information gives you another important characteristic to compare when selecting a replacement.
• Blade end × blade end connection – Makes the physical connection style easy to identify when checking compatibility.
• Non-indicating configuration – An important detail when the existing equipment specification calls for this particular fuse style.
  

Technical Specifications

• Catalog Number: FRN-R-100
  
• Series: FRN-R
  
• Product Type: Fuse
  
• Fuse Class: Class RK5
  
• Amperage Rating: 100A
  
• Voltage Rating: 250V AC / 125V DC
  
• AC Interrupting Rating: 200 kAIC at 250V AC
  
• DC Interrupting Rating: 20 kAIC at 125V DC
  
• Response Time: 10 seconds at 500% of rated current
  
• Number of Elements: Dual
  
• Connection: Blade end × blade end
  
• Fuse Indicator: Non-indicating
  
• Length / Depth: 2.1 in
  
• Height: 0.54 in
  
• Width: 0.54 in
  
• Product Weight: 0.5 lb
  
• Packaging Type: Standard
  
• UPC: 051712101851
  

Material Compliance and Certifications

When compliance matters, it's better to consult the documentation for the exact catalog number rather than assuming that every fuse in a product family carries identical approvals. For the FRN-R-100, the supplied manufacturer specifications indicate that the product is CE-marked.

Where It Works Best

• Replacing an existing FRN-R-100 – A logical choice when the equipment specification already calls for this exact catalog number and all application requirements remain compatible.
• 100A Class RK5 applications – Fits systems specifically requiring a 100-amp Class RK5 fuse with matching electrical characteristics.
• 125V DC systems – Also suitable for compatible applications requiring up to 125V DC, with a 20 kAIC interrupting rating at that voltage.
• Dual-element fuse applications – Appropriate where the equipment specification calls for dual-element construction and the stated response characteristics.