FRS-R-7 - 7Amp Fuse

FRS-R-7 - 7Amp Fuse

Designed to deliver reliable protection and operational stability in demanding commercial and industrial electrical systems, the Eaton Bussmann FRS‑R‑7 fuse offers a smart solution when you need a dependable, dual‑element time‑delay cartridge. With a 7 A rating and Class RK5 certification, this fuse is engineered to withstand the temporary surge currents associated with motors, solenoids, and transformers while responding instantly to sustained faults or short circuits. Its 600 V AC / 300 V DC voltage rating and impressive interrupting capabilities (200,000 A at 600 V AC and 20,000 A at 300 V DC) ensure that your system remains safe under high‑fault conditions. The compact 5‑inch ferrule‑end format provides quick replacements in standard RK5 fuse holders, making this an excellent choice for critical systems where uptime and maintenance simplicity matter.

Key Features and Benefits

• Dual‑element, time‑delay design: Allows harmless surge currents to pass (ideal for motor starts, transformer energising, and solenoid loads) while instantly isolating sustained overloads or short circuits.
• High fault‑current interruption rating: (200 kA at 600 V AC, 20 kA at 300 V DC) helps protect downstream equipment, minimize risk and maximize system uptime.
• Non‑indicating ferrule‑end cartridge format: Fits standard RK5 fuse holders for simple, tool‑free installation and fast replacement.
• Compact footprint: Reduces heat build‑up and supports longer component life in tight electrical panel environments.

Technical Specifications

• Catalog Number: FRS‑R‑7
  
• Amperage Rating: 7 A
  
• Voltage Rating: 600 V AC / 300 V DC
  
• Interrupting Rating:
  • 200 kA at 600 V AC
  • 20 kA at 300 V DC
• Response Time: 10 seconds at 500% of rated current
  
• Fuse Class: RK5
  
• Connection Type: Ferrule end × ferrule end
  
• Dimensions:
  • Length: Approx. 5 in
  • Width: 0.81 in
  • Height: 0.81 in
• Weight: ~0.127 lb (typical)
  
• Certifications: UL 248‑12, CSA C22.2 No. 248.12, CE‑marked
  

Material Compliance and Certifications

• Industry Standards: This fuse is CE‑marked and meets UL and CSA standards for Class RK5 fuses, offering confidence for installations in North America and beyond. It’s engineered to global market requirements while supporting eco‑conscious system design with compliance to relevant environmental standards.

Where It Works Best

• This fuse excels in protecting circuits found in motor control centres (MCCs), HVAC panels, lighting control systems, automated machinery, industrial enclosures, and power distribution equipment. If your installation has inductive loads such as motors or transformers—and you need the ability to allow harmless surges while still ensuring strong fault‑current protection—the FRS‑R‑7 is a dependable choice. Its tool‑free, ferrule‑end format makes it ideal for maintenance teams who require quick replacements and minimal downtime.