The Cooper Bussmann FRS-R-4/10 is a 0.4 amp, 600 VAC/300 VDC, dual-element, time-delay fuse designed for superior protection in various electrical applications.
Key Features
- Dual-Element Design: Provides enhanced time-delay performance, allowing for closer sizing and superior protection of motors and transformers.
- Time-Delay Capability: Offers a minimum of 10 seconds time-delay at 500% of rated current, accommodating temporary inrush currents without nuisance openings.
- High Interrupting Rating: Rated at 200,000 AIC at 600 VAC and 20,000 AIC at 300 VDC, ensuring reliable performance under high fault conditions.
- Current-Limiting: Limits the let-through energy, reducing potential damage to downstream components during fault conditions.
- Non-Indicating: Designed without an indicating feature, suitable for applications where visual indication is not required.
Specifications
- Amperage Rating: 0.4 A
- Voltage Rating: 600 VAC / 300 VDC
- Interrupting Rating: 200 kA at 600 VAC; 20 kA at 300 VDC
- Class: RK5
- Body Material: Fiberglass
- Dimensions: 0.81 inches in diameter x 5 inches in length
- Mounting Type: Holder
- Terminal Type: Ferrule End
Applications
The FRS-R-4/10 fuse is ideal for use in combination starters, motor control centers, machinery disconnects, and power panelboards. Its time-delay feature makes it particularly suitable for circuits subject to temporary motor overloads and surge currents, providing both high-performance short-circuit and overload protection.
Compliance and Standards
- UL Listed: UL 248-12, Guide JDDZ
- CSA Certified: Class 1422-01, File 53787
- CE Marked
The Cooper Bussmann FRS-R-4/10 fuse combines advanced protection with energy efficiency, making it a reliable choice for safeguarding electrical systems against overloads and short circuits.
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