FRS-R-45 - 45Amp Fuse

FRS-R-45 - 45Amp Fuse

When you're replacing an FRS-R-45 fuse, matching the 45-amp rating is important, but there's more to check before calling it a match. This model uses ferrule connections on both ends and is non-indicating, so there's no built-in fuse-status indicator. It measures 5.5 inches long, 1.84 inches high, and 1.84 inches wide, and weighs 0.293 lb. If FRS-R-45 is the catalog number you're replacing, you already have a useful starting point. From there, compare the Class RK5 designation, voltage ratings, interrupt ratings, connection style, and dimensions with the equipment requirements.

Key Features and Benefits

• 45A Class RK5 rating: Provides a clear amperage and fuse-class reference when checking an existing fuse or equipment documentation.
• 600 VAC rating: Rated for 600 VAC with a published interrupt rating of 200 kAIC at 600 VAC.
• 250 VDC rating: The specified DC rating is 250 VDC, with an interrupt rating of 20 kAIC at 250 VDC.
• Specified response time: Rated at 10 seconds at 500% of rated current.
• Ferrule connections: Uses a ferrule end x ferrule end connection configuration, an important physical detail when confirming compatibility.
• Non-indicating design: There is no built-in indicator for visually displaying fuse status.
• CE Marked: CE marking is included in the supplied manufacturer compliance information.
  

Technical Specifications

• Product Name: Eaton Bussmann series FRS-R fuse
  
• Catalog Number: FRS-R-45
  
• UPC: 051712508377
  
• Product Type: Fuse
  
• Class: Class RK5
  
• Amperage Rating: 45 A
  
• AC Voltage Rating: 600 VAC
  
• DC Voltage Rating: 250 VDC
  
• AC Interrupt Rating: 200 kAIC at 600 VAC
  
• DC Interrupt Rating: 20 kAIC at 250 VDC
  
• Response Time: 10 sec at 500%
  
• Number of Elements: Dual
  
• Connection: Ferrule end x ferrule end
  
• Fuse Indicator: Non-indicating
  
• Product Length/Depth: 5.5 in
  
• Product Height: 1.84 in
  
• Product Width: 1.84 in
  
• Product Weight: 0.293 lb
  

Material Compliance and Certifications

According to the supplied manufacturer specifications, the Eaton Bussmann FRS-R-45 is CE-marked.

Where It Works Best

The FRS-R-45 45A fuse is appropriate for compatible electrical equipment that specifically calls for a Class RK5 dual-element fuse with ferrule connections and ratings matching this model. Its 600 VAC / 250 VDC voltage ratings and separately stated AC and DC interrupt ratings provide useful checkpoints when you're comparing the fuse with equipment documentation.