FRS-R-10 - 10Amp Fuse

FRS-R-10 - 10Amp Fuse

When you need a fuse that can keep up with demanding industrial or commercial power systems, the Eaton Bussmann FRS‑R‑10 delivers. Designed for circuits with high motor inrush or transient loads, this 10 A, Class RK5, dual‑element time‑delay fuse provides reliable overcurrent protection without unwanted tripping. It’s rated for 600 Vac (and 300 Vdc), with a massive interrupting capability (200 kA at 600 Vac, 20 kA at 300 Vdc). The physical dimensions (7.88" length, 1.11" diameter) and ferrule‑end construction make it compatible with standard Class RK5 holders. This fuse is ideal when you want protection that’s both high‑performance and cost‑effective.

Key Features and Benefits

• Dual‑Element Time‑Delay Design: The dual‑element construction handles temporary overloads and motor startup surges (around 10 seconds at 500% of rated current) so your system won’t nuisance‑trip during those inrush events.
• Current‑Limiting Capability: When a fault occurs, this fuse acts to limit let‑through current, protecting downstream equipment and reducing damage to wiring and components.
• High Interrupting Rating: With 200 kA at 600 Vac and 20 kA at 300 Vdc, you get a product that handles severe fault events with confidence.
• Low Heat Operation: Because the fuse is designed for high performance with less stress, it helps maintain cooler operation within panels and enclosures, contributing to longer equipment life and fewer maintenance issues.
• Standard Form Factor & Compatibility: With ferrule‑end x ferrule‑end configuration and Class RK5 size, you can drop this into existing holders or replace older fuses without major rewiring or holder changes.

Technical Specifications

• Catalog Number: FRS‑R‑10
• Amperage Rating: 10 A
• Voltage Rating: 600 Vac / 300 Vdc
• Interrupting Rating:
  • 200 kA at 600 Vac
  • 20 kA at 300 Vdc
• Response Time: Minimum 10 seconds at 500% of rated current (for motor startup tolerance)
• Fuse Class: RK5
• Connection Type: Ferrule end x ferrule end
• Fuse Indicator: Non‑indicating version
• Dimensions:
  • Length: 7.88 inches
  • Diameter: 1.11 inches
• Weight: Approximately 0.17 lb

Material Compliance and Certifications

• UL Listed: UL 248‑12 (for Class RK5 fuses)
• CSA Certified: CSA C22.2 No. 248.12
• CE Marked: Meets European safety standards
• RoHS Compliant: Environmentally responsible sourcing of materials

Where It Works Best

• Use the FRS‑R‑10 fuse in systems where you have motor loads, HVAC units, industrial controls, or power distribution panels subject to surge currents or brief overloads. It is particularly well-suited for combination starters, motor control centers, and machine disconnects because its time‑delay design tolerates those startup spikes while still providing short‑circuit and overload protection.
• If your facility demands high fault‑current protection with the flexibility to accept temporary overloads (e.g., during motor startups), this fuse is an excellent choice.