FRS-R-125 - 125 Amp Fuse

FRS-R-125 - 125 Amp Fuse

Need to replace an FRS-R-125 fuse? Start with the details that matter. This model uses blade-end-to-blade-end connections and measures 9.63 inches long, so both the electrical ratings and the physical fit deserve a quick check before installation. It is also non-indicating, meaning there is no built-in fuse status indicator. If you're replacing an existing FRS-R-125, matching the catalog number is a good starting point—but don't stop there. Check the Class RK5 designation, 125A rating, voltage, interrupt rating, connection style, and dimensions against your equipment requirements.

Key Features and Benefits

• 125-amp rating for equipment that specifically requires a 125-amp fuse.
• The RK5 design makes it easy to confirm the fuse class against existing equipment specifications.
• Rated for 600 VAC and 300 VDC.
• Dual-element construction as specified by the manufacturer.
• Published 10-second response time at 500% of rated current.
• Uses blade end x blade end connections.
• Clearly defined dimensions make it easier to check physical fit before installation.
• CE Marked according to the supplied manufacturer specifications.
• Non-indicating design with no built-in status indicator.
  

Technical Specifications

• Product Name: Eaton Bussmann series FRS-R fuse
  
• Catalog Number: FRS-R-125
  
• UPC: 051712508452
  
• Product Type: Fuse
  
• Class: Class RK5
  
• Amperage Rating: 125 A
  
• AC Voltage Rating: 600 VAC
  
• DC Voltage Rating: 300 VDC
  
• AC Interrupt Rating: 200 kAIC at 600 VAC
  
• DC Interrupt Rating: 20 kAIC at 300 VDC
  
• Response Time: 10 sec at 500%
  
• Number of Elements: Dual
  
• Connection: Blade end x blade end
  
• Fuse Indicator: Non-indicating
  
• Length/Depth: 9.63 in
  
• Height: 1.84 in
  
• Width: 1.84 in
  
• Product Weight: 1.05 lb
  

Material Compliance and Certifications

The FRS-R-125 is CE-marked according to the supplied manufacturer information. No additional material-compliance declarations or certifications were included in the provided specifications, so none are claimed here.

Where It Works Best

The FRS-R-125 125A fuse is a practical match for compatible electrical equipment calling for a Class RK5 dual-element fuse with blade connections and the corresponding electrical ratings. With ratings of 600 VAC and 300 VDC, it can be used in compatible AC or DC equipment when all required specifications are satisfied.