FRS-R-20 - 20Amp Fuse

FRS-R-20 - 20Amp Fuse

The Eaton Bussmann FRS-R-20 is a 20-amp Class RK5 dual-element fuse with clearly defined AC and DC ratings for compatible electrical equipment. Physically, the FRS-R-20 uses ferrule end x ferrule end connections and measures 5 inches long by 0.81 inches high and 0.81 inches wide. It is also non-indicating, so there is no built-in fuse status indicator. If you're matching an existing FRS-R-20 fuse, don't rely on the 20A rating by itself. Fuse class, voltage, interrupting rating, connection style, and dimensions should be compared with the equipment specifications before installation.

Key Features and Benefits

• 20A Class RK5 fuse: Clearly defined amperage and fuse class simplify comparison with equipment requirements.
• 600 VAC / 300 VDC rating: Provides specified voltage ratings for compatible AC and DC equipment.
• 200 kAIC at 600 VAC: The published AC interrupting rating is an important specification to verify when selecting a replacement.
• 20 kAIC at 300 VDC: Clearly stated DC interrupting rating helps with accurate specification matching.
• Dual-element construction: Matches the manufacturer's specified configuration for the FRS-R-20.
• Defined response characteristic: Specified response time is 10 seconds at 500% of rated current.
• Ferrule connections on both ends: Makes the physical connection type straightforward to identify and compare.
• Non-indicating design: This fuse lacks a built-in status indicator.
  

Technical Specifications

• Product Name: Eaton Bussmann series FRS-R fuse
  
• Catalog Number: FRS-R-20
  
• UPC: 051712508322
  
• Product Type: Fuse
  
• Class: Class RK5
  
• Amperage Rating: 20 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: Ferrule end x ferrule end
  
• Fuse Indicator: Non-indicating
  
• Product Length/Depth: 5 in
  
• Product Height: 0.81 in
  
• Product Width: 0.81 in
  
• Product Weight: 0.16 lb
  

Material Compliance and Certifications

The FRS-R-20 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-20 20A fuse is suited for compatible electrical equipment that requires a Class RK5 dual-element fuse with ferrule-end connections and matching electrical characteristics. Its 600 VAC and 300 VDC ratings, together with its published AC and DC interrupting ratings, give technicians several precise specifications to compare against the equipment documentation.