FRS-R-1 - 1Amp Fuse

FRS-R-1 - 1Amp Fuse

Upgrade your protection strategy with the Eaton Bussmann FRS‑R‑1 fuse – a high‑performing, dual‑element time‑delay Class RK5 fuse designed for industrial‑grade applications. Rated at 1 amp, with 600 V AC / 300 V DC capability, this fuse addresses both standard branch‑circuit requirements and those demanding the ability to ride out brief inrush currents. Equipped with current‑limiting technology and a 10‑second 500 % time‑delay capability, it safeguards motors, transformers, panelboards, and disconnects while offering greater precision in sizing and enhanced downstream equipment protection. As you seek reliable circuit‑protection components, the FRS‑R‑1 stands out by blending dependable performance, regulatory compliance, and application versatility.

Key Features and Benefits

• Dual‑Element Time‑Delay Technology: Allows the fuse to handle brief inrush or startup currents (such as motor or transformer surges) without nuisance blowing, giving you operational flexibility.
• Current‑Limiting Design: Minimizes let‑through energy
• High Interrupt Rating: Engineered for demanding fault‑current scenarios, offering peace of mind in challenging environments.
• Closer Sizing Means Cost Efficiency: Because of its time‑delay and current‑limiting attributes, you can often select a fuse that is closer to the actual full‑load amps rather than oversizing out of caution – this can lower switchgear or panel costs.
• Reliable in Tough Conditions: Built to perform in industrial and commercial settings where equipment uptime and protection matter most.

Technical Specifications

• Catalog Number: FRS‑R‑1
• Amperage Rating: 1 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: Minimum 10 seconds at 500 % of rated current
• Dimensions:
  • Length: Approximately 5″
  • Diameter: Approximately 0.81″
• Weight: Approximately 0.15 lb
• Connection Type: Ferrule end × ferrule end (non‑indicating version)

Material Compliance and Certifications

• Standards: UL 248‑12 (Class RK5)
• Certifications: UL Listed, CSA Certified, CE Marked
• These certifications confirm that the fuse meets rigorous safety and performance benchmarks required for industrial electrical systems.

Where It Works Best

• This fuse is a superb choice for motor control centres, machinery disconnects, panelboards, combination starters, and branch circuits where inrush or surge currents are a factor. Because its time‑delay and current‑limiting characteristics allow sizing closer to full‑load amps, it’s especially suitable in circuits with frequent temporary overloads or induced start‑up surges — for example motors, transformers or equipment with high inrush. In short: if you need a dependable 1 amp fuse that balances sensitive protection with inrush tolerance for industrial/commercial use, the FRS‑R‑1 delivers.