Eaton FRS-R-1/2 Fuse - Class RK5, 0.5 A, CE Marked
Part Number: FRS-R-1/2
Quick Summary
The Eaton Bussmann FRS-R-1/2 fuse is a time-delay, dual-element protective device designed for branch circuits in industrial control systems. Engineers often struggle with nuisance trips during startup or fault events, and they need reliable protection that tolerates inrush. This Class RK5 fuse is CE marked and offers a 0.5 A rating with a 200 kA interrupt rating at 600 Vac, supporting safe, compliant protection. Using this fuse in electrical protection and circuit control applications delivers business value through improved reliability, reduced maintenance, and easier panel integration.
Product Information
Extended Description
FRS-R-1/2 Eaton: Eaton Bussmann Series Class RK5 fuse, FRS-R, time-delay, dual-element, current limiting fuse, 0.5 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-1/2
UPC
051712508056
EAN
5027590060912
Product Length/Depth
0.81 in
Product Height
5 in
Product Width
0.81 in
Product Weight
0.15 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
0.5 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
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Bussmann series FRS-R 600 V Class R up to 60 A fuse data sheet no. 1017
Time-delay, dual-element design provides selective protection for circuits featuring motor inrush and transient overloads. This architecture allows the fuse to ride through short surges without nuisance tripping, while still opening quickly on sustained faults, reducing unplanned downtime. In industrial control panels and drives, this balance translates into higher equipment availability and lower maintenance costs. With a 200 kAIC interrupt rating at 600 Vac and 20 kAIC at 300 Vdc, the FRS-R-1/2 delivers robust fault clearing for high-energy mains and varied DC link conditions. The current-limiting behavior helps protect downstream components such as transformers, contactors, and drives from damaging fault currents. This capability lowers replacement costs and extends service life in demanding manufacturing environments. Class RK5 construction paired with CE marking provides a standardized protection solution across multiple manufacturers' panels. The non-indicating feature reduces panel clutter and simplifies mounting in crowded enclosures, while maintaining clear fault protection. This combination supports faster commissioning and easier compliance verification during audits. Ferrule-end x ferrule-end connections offer secure, repeatable terminations that resist vibration and loosening in vibration-prone equipment. The ferrule design also enables quick replacement during maintenance windows, minimizing downtime. For retrofit projects, the familiar form factor accelerates migration from legacy fuses without rewiring. Compact form factor and standard packaging enable easy integration in space-constrained enclosures. The 0.5 A amperage rating fits low-power control circuits, sensors, and PLC I/O protection while meeting NEC and EN standards. In short, the FRS-R-1/2 blends performance, compliance, and value for modern industrial protection schemes. Compatibility and installation advantages include standard ferrule-end connections that align with common panel-wiring practices, reducing rework and ensuring reliable terminations even in dusty or humid environments. The fuse's rugged RK5 class and CE compliance streamline procurement, while its non-indicating design minimizes diagnostic ambiguity in busy control rooms. For retrofit projects, its 0.81 inch cross-section fits existing cutouts without modification.
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FAQs
The FRS-R-1/2 is a 0.5 A, time-delay fuse designed for low-current branch protection in industrial control applications. It suits motor circuits, PLC I/O protection, and sensor interfaces where inrush currents occur, while maintaining robust fault interruption for safety and equipment protection. Its RK5 class and CE compliance support panel-standard protection schemes.
Yes, the FRS-R-1/2 is rated for 600 Vac systems and provides a 200 kA interrupt rating at 600 Vac. It also offers 20 kAIC at 300 Vdc for DC applications. This combination supports reliable fault clearing in mixed AC/DC environments commonly found in modern industrial controls and drives.
Absolutely. The FRS-R-1/2 is a Class RK5 fuse with CE marking, designed for standardized protection in new panel builds. Its non-indicating design reduces indicator clutter, while ferrule-end terminations simplify wiring and reduce commissioning time. It aligns with common RK5 protection schemes used in machine control and electrical protection architectures.
Ferrule-end terminations provide secure, vibration-resistant connections ideal for industrial environments. Ensure ferrule crimps are sized correctly for the conductor, and follow standard torque specifications to maintain reliability. This design enables faster maintenance and safer field replacements, particularly in busy control cabinets or equipment subject to vibration.
The FRS-R-1/2 reduces maintenance costs by lowering nuisance trips and extending component life through precise current-limiting and robust fault interruption. Its CE RK5 compliance and non-indicating design streamline commissioning and audits, while ferrule-end terminations shorten replacement downtime, delivering a favorable total cost of ownership in panel-heavy or high-demand lines.