Eaton FRS-R-4/10 fuse - 200 kAIC at 600 Vac
Part Number: FRS-R-4/10
Quick Summary
The Eaton FRS-R-4/10 fuse provides time-delay, dual-element protection for control panels and branch circuits. Engineers often face nuisance trips during motor startups or transient faults; this device tolerates brief overloads while delivering reliable fault clearance. As part of the Class RK5 family, it is CE marked and rated for 600 Vac and 300 Vdc, supporting diverse industrial applications. The ferrule-end connections, standard packaging, and non-indicating design streamline installation and service, reducing wiring errors and downtime while maintaining a compact panel footprint. This combination yields predictable protection, regulatory compliance, and lower total cost of ownership in automation and electrical protection projects.
Product Information
Extended Description
FRS-R-4/10 Eaton: Eaton Bussmann Series Class RK5 fuse, FRS-R, time-delay, dual-element, current limiting fuse, 0.4 A, non-indicating fuse, interrupting rating of 200 kA at 600 Vac and 20 kA at 300 Vdc
Product Name
Eaton Bussmann series FRS-R fuse
Catalog Number
FRS-R-4/10
UPC
051712508049
Product Length/Depth
5.5 in
Product Height
1.06 in
Product Width
1.06 in
Product Weight
0.35 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
0.4 A
Interrupt rating
200 kAIC at 600 Vac 20 kAIC at 300 Vdc
Response time
10 sec at 500%
Voltage rating
600 Vac, 300 Vdc
Number of elements
Dual
Packaging type
Standard
Class
Class RK5
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
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Bussmann series Fuseology
Bussmann series FRS-R 600 V Class R up to 60 A fuse data sheet no. 1017
Feature: Time-delay, dual-element design. Benefit: Handles motor inrush and transient overloads without nuisance tripping, improving system uptime and reducing maintenance interventions. Application: Ideal for control panels and branch circuits in automation systems where reliable fault clearance is essential. Feature: 0.4 A amperage rating with high interrupt capability. Benefit: Thin-fault protection across small control circuits with robust short-circuit isolation; supports safe operation in compact electrical enclosures. Application: Low-current protection in distributed control architectures and conveyor drives. Feature: 200 kAIC at 600 Vac interrupt rating (20 kAIC at 300 Vdc). Benefit: Fast, secure fault interruption for high-energy systems, enhancing safety and equipment protection. Application: Power distribution blocks and MCCs in industrial facilities. Feature: Ferrule-end x ferrule-end connections and standard packaging. Benefit: Quick, reliable wiring and easy replacement during maintenance windows; reduces commissioning time. Application: Retrofit projects and new installations with standardized terminations. Feature: Non-indicating fuse indicator. Benefit: Reduces panel clutter and avoids misleading status signals, simplifying diagnostics. Application: Environments with numerous fuses where clear visibility is critical. Feature: CE marking and RK5 Class classification. Benefit: Regulatory compliance and predictable coordination with other Bussmann RK5 devices, minimizing design-time verification. Application: Global deployments requiring standardized protection across machines and lines.
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FAQs
The FRS-R-4/10 uses ferrule-end x ferrule-end connections, supporting standard panel wiring with ferrule terminations. Its compact 5.5 in length and 1.06 in width/height fit tight enclosures, while the dual-element RK5 design maintains consistent protection. This combination simplifies retrofits and new builds, reducing wiring errors and enabling straightforward field replacement without changing chassis layouts.
Key performance specs include an amperage rating of 0.4 A and an interrupt rating of 200 kAIC at 600 Vac (also 20 kAIC at 300 Vdc). The device provides a response time of about 10 seconds at 500% overload, reflecting a balance between inrush tolerance and rapid fault clearance in standard control circuits and protected loads.
Yes. The fuse's time-delay, dual-element RK5 design, combined with 0.4 A rating and 600 Vac/300 Vdc capability, makes it well-suited for protecting low-current control circuits and branch circuits in industrial automation. Its ferrule-end connections simplify wiring, support easy replacements, and ensure dependable operation in panel boards and machine control environments.
The FRS-R-4/10 is CE marked and belongs to the Class RK5 family, reflecting compliance with European standards for branch-circuit fuses. The RK5 classification ensures compatibility with Bussmann RK5 devices, providing consistent electrical coordination across assemblies and facilitating regulatory acceptance in global deployments.
Plan for standardized replacements within the RK5 family to simplify stocking and reduce downtime. Use ferrule-end terminations for quick wiring, and maintain a small inventory of 0.4 A, 600 Vac devices to support common control-circuit protections. The non-indicating design minimizes panel clutter, while CE compliance supports multi-region deployments, delivering predictable protection and lower lifecycle costs.