FRN-R-40 - 40 Amp Fuse

FRN-R-40 - 40 Amp Fuse

The FRN-R-40 is a 40-amp Class RK5 dual-element fuse with ferrule ends and a non-indicating configuration. The physical fit is equally easy to verify: the FRN-R-40 measures 3 inches long, 0.81 inches high, and 0.81 inches wide. If you're comparing the fuse in your equipment with the specifications on the page, the dimensions, ferrule connections, Class RK5 designation, and electrical ratings provide several solid points for identification before installation.

Key Features and Benefits

• 40A Class RK5. The FRN-R-40 uses dual-element construction and is the non-indicating version.
• Voltage ratings: 250V AC and 125V DC.
• Response: 10 seconds at 500% of rated current, as specified by the manufacturer.
• Ferrule end × ferrule end. Check the fuse holder for the correct connection style and physical fit.
• Finger safe is listed as a special feature for this catalog number.
  

Technical Specifications

• Catalog Number: FRN-R-40
  
• Product Name: Eaton Bussmann Series FRN-R Fuse
  
• Product Type: Fuse
  
• Series: FRN-R
  
• Class: Class RK5
  
• Amperage Rating: 40A
  
• 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
  
• Special Feature: Finger safe
  
• Length / Depth: 3 in
  
• Height: 0.81 in
  
• Width: 0.81 in
  
• Product Weight: 0.11 lb
  
• Packaging Type: Standard
  
• UPC: 051712101783
  

Material Compliance and Certifications

The supplied manufacturer specifications identify the FRN-R-40 as CE-marked. No other catalog-specific certifications or material compliance designations were included in the information provided.

Where It Works Best

• Equipment specifications calling for the FRN-R-40 or the same complete set of electrical and physical characteristics.
• 40A Class RK5 fuse positions that accept ferrule connections and the fuse's 3 × 0.81 × 0.81-inch dimensions.
• 250V AC circuits where a 200 kAIC at 250V AC interrupting rating satisfies the circuit requirements.
• 125V DC circuits where the published 20 kAIC at 125V DC rating and remaining specifications are suitable.
• Installations specifying a dual-element, non-indicating fuse with the FRN-R-40's stated response characteristic.