Eaton FRS-R-2-1/2 fuse – Class RK5, 200 kAIC at 600 Vac
Part Number: FRS-R-2-1/2
Quick Summary
Eaton FRS-R-2-1/2 fuse protects motor circuits in industrial control panels. Startup surges and short-duration faults can trip lines, causing downtime and costly unplanned shutdowns for critical equipment. CE marked and Class RK5 compliant, it handles 200 kAIC at 600 Vac for robust protection across industrial networks. Designed for ferrule-to-ferrule connections and standard packaging, it eases panel assembly and reduces installation time. Its dual-element, time-delay profile supports motor starts and transient inrush without nuisance tripping, delivering measurable uptime gains in demanding automation environments. In practice, technicians value the reliable, documented performance found in Bussmann series data and catalog references.
Product Information
Extended Description
FRS-R-2-1/2 Eaton: Eaton Bussmann Series Class RK5 fuse, FRS-R, time-delay, dual-element, current limiting fuse, 2.5 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-2-1/2
UPC
051712508162
Product Length/Depth
5 in
Product Height
0.81 in
Product Width
0.81 in
Product Weight
0.15 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
2.5 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
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
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, current-limiting Class RK5 protection delivers controlled fault clearing during motor startup, reducing nuisance trips and wear on drives. Business impact: This improves line uptime and extends equipment life. Application: Works well in motor control centers, conveyor drives, and automation cabinets. High interrupt rating of 200 kAIC at 600 Vac provides robust protection against high-energy faults in feeders and switchgear. Business impact: Minimizes damage to upstream devices and reduces replacement costs. Application: Suitable for energized panels and branch circuits in process industries. Dual-element design and non-indicating indicators reduce maintenance checks while providing reliable time-delay protection for inrush events. Business impact: Predictable performance in short-duration faults, lowering risk of unexpected outages. Application: Appropriate for loads with brief inrush, such as motors and transformers. Physical compatibility includes ferrule-end connections, standard 5 in length, and compact 0.81 in width/height enabling easy panel integration. Business impact: Simplifies wiring, stocking, and replacement in existing racks. Application: Fits common DIN rail and cabinet layouts across automation installations. CE marking and Class RK5 compliance support global safety and regulatory requirements, with standard packaging for straightforward procurement. Business impact: Facilitates compliance audits and minimizes sourcing risk. Application: Widely adopted in European and international facilities.
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FAQs
The FRS-R-2-1/2 uses ferrule-end terminations and belongs to the Class RK5 family, ensuring compatible mounting with standard Bussmann RK5 devices and matching ferrule connectors for quick, secure panel integration.
It is rated at 2.5 A, with voltage ratings of 600 Vac and 300 Vdc, and an interrupt rating of 200 kAIC at 600 Vac (and 20 kAIC at 300 Vdc), suitable for protecting circuits against faults while tolerating inrush.
Yes. It is a time-delay, dual-element fuse that tolerates motor-start transients and brief surges, reducing the likelihood of nuisance trips during startup without compromising protection.
The fuse is CE marked and Class RK5 compliant, meeting European safety requirements and enabling safe integration into international control panels; additional RoHS information is accessible via Eaton’s RoHS tool.
The fuse measures 5 inches in length with nominal 0.81 inch width and height, uses ferrule-end terminations, and ships in standard packaging to simplify stocking and panel mounting.