Overview
The Bussmann FRS-R-10 Fusetron fuse delivers dual-element, time-delay protection rated at 10 amperes and 600 volts AC. As a Class RK5 current limiting fuse with a 200 kA interrupting rating at 600 Vac, this fuse is engineered for circuits subject to temporary motor inrush currents and transient overloads. The FRS-R-10 is ideal for protecting transformers, solenoids, and motor-driven equipment in industrial automation and building systems.
Key Features
- Dual-element, time-delay design for superior overload and short-circuit protection
- Delivers 10 seconds minimum time-delay at 500% of rated current
- Energy-efficient advanced protection in UL Class RK5 Fusetron construction
- Can physically and electrically replace Class H, K5, and other Class RK5 fuses
- Non-indicating design (optional open fuse indication available)
- Fits standard rejection-type fuse holders and Class H fuse holders
Technical Specifications
- Amperage: 10A
- Voltage Rating: 600 VAC / 300 VDC
- Interrupting Rating: 200 kA at 600 Vac
- Class: RK5 (Rejection Type)
- Time Response: 10 second delay at 500% rated current
- Construction: Dual-element, fiberglass tube
- Body: 0.81 in Dia × 5 in Length, cylindrical
- Terminal: Ferrule end connections
- Certifications: UL Listed to Std. 248-12, Class RK5; CSA Certified
Typical Applications
Time-delay design affords excellent overload protection for motors and circuits with temporary inrush currents from transformers and solenoids. The FRS-R-10 is commonly used in:
- AC motor branch circuits and motor control centers
- Transformer secondary circuits
- Solenoid and coil protection
- General industrial control panels and distribution systems
- Machinery with recurring surge currents
Compatibility & Replacements
Compatible With
- Standard rejection-type fuse holders (Class R)
- Class H fuse holders
- Industrial control panels rated 600V AC
- Motor control centers and disconnect switches
- Standard electrical panelboards with RK5 fuse accommodation
Replaces / Drop-In Replacement For
- Directly replaces Class H, K5, and other Class RK5 rated fuses
- Other 10A 600V time-delay fuses in RK5 classification
- Older non-current-limiting 10A fuse designs in compatible holders
Works With
- Eaton/Bussmann rejection-type fuse holders and accessory products
- Standard 600V three-phase and single-phase industrial electrical systems
- Motor starters and overload relays with fuse-based protection
- Power distribution equipment from all major manufacturers (Allen-Bradley, Siemens, Schneider, etc.)
