FRN-R-45 - 45 Amp Fuse

FRN-R-45 - 45 Amp Fuse

If you’re looking at the FRN-R-45, there are a few details that quickly separate it from other fuses in the FRN-R family. Its published interrupting ratings are 200 kAIC at 250V AC and 20 kAIC at 125V DC, while Eaton lists a 10-second response time at 500% of rated current. The fuse measures 3 inches long, 0.81 inches high, and 0.81 inches wide, so the physical fit is another detail worth confirming before installation. The FRN-R-45 is also non-indicating. Put those specifications together, and you have a very specific fuse configuration—useful when you’re working from an equipment manual, an existing FRN-R-45, or a documented set of replacement requirements.

Key Features and Benefits

• 45A Class RK5 rating with dual-element construction.
• Handles applications within its published 250V AC / 125V DC ratings.
• 10-second response at 500% of rated current. That specific response figure can be compared directly with the requirements in the equipment documentation.
• Ferrule end × ferrule end connection. The body measures 3 inches long, with a height and width of 0.81 inches.
• Non-indicating construction, an important identification detail when replacing an existing fuse with the same configuration.
  

Technical Specifications

• Catalog Number: FRN-R-45
  
• Product Name: Eaton Bussmann Series FRN-R Fuse
  
• Product Type: Fuse
  
• Series: FRN-R
  
• Amperage Rating: 45A
  
• Fuse Class: Class RK5
  
• 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: Ferrule end × ferrule end
  
• Fuse Indicator: Non-indicating
  
• Length / Depth: 3 in
  
• Height: 0.81 in
  
• Width: 0.81 in
  
• Product Weight: 3.1 lb
  
• Packaging Type: Standard
  
• UPC: 051712101790
  

Material Compliance and Certifications

The supplied manufacturer information lists the FRN-R-45 as CE-marked. No additional catalog-specific certifications or material compliance declarations were provided in the specifications for this product.

Where It Works Best

• Equipment documentation specifically calling for an FRN-R-45 or an exact match to its published specifications.
• 45A Class RK5 fuse positions that accept its ferrule end × ferrule end configuration and 3 × 0.81 × 0.81-inch dimensions.
• 250V AC circuits where the specified 200 kAIC at 250V AC interrupting rating satisfies the circuit requirements.
• Installations specifying a dual-element, non-indicating fuse with the stated 10-second response at 500% of rated current.