Eaton FRS-R-4 Fuse - RK5 Class, 200 kAIC
Part Number: FRS-R-4
Quick Summary
The Eaton FRS-R-4 fuse is a time-delay, dual-element RK5 class fuse designed for protecting industrial power circuits. Engineers often wrestle with balancing fast fault isolation against nuisance trips in demanding control panels; this fuse helps minimize downtime while preserving protection. CE marking confirms global compliance, and Eaton provides clear documentation with data sheets to verify performance; RoHS information can be accessed through Eaton's RoHS tool for additional clarity. This compact, ferrule-ended device integrates into standard panel designs, delivering reliability, ease of sourcing, and predictable maintenance planning for modern electrical protection schemes.
Product Information
Extended Description
FRS-R-4 Eaton: Eaton Bussmann Series Class RK5 fuse, FRS-R, time-delay, dual-element, current limiting fuse, 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
UPC
051712508209
Product Length/Depth
5 in
Product Height
0.81 in
Product Width
0.81 in
Product Weight
0.13 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
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
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
Feature: Time-delay, dual-element design → Business Impact: Reduces nuisance trips in motor and load circuits while preserving fast fault isolation. Application: Control panels, conveyors, and machine automate environments. Feature: 4 A amperage rating with 200 kAIC interrupt rating at 600 Vac → Business Impact: Robust short-circuit protection against high-energy faults, minimizing damage and downtime. Application: Power distribution across industrial equipment with demanding fault currents. Feature: 600 Vac / 300 Vdc voltage rating with ferrule end terminations → Business Impact: Easy, reliable installation with secure terminations, improving field wiring efficiency. Application: Standard control panels and safety-critical circuits. Feature: Class RK5, non-indicating fuse → Business Impact: Consistent protection without indicator complexity, reducing maintenance checks and stocking variety. Application: General electrical protection in legacy and new builds. Feature: Documentation and compliance support → Business Impact: Clear spec sheets and catalogs streamline approvals and regulatory readiness. Application: Global manufacturing facilities implementing CE-compliant protection schemes and RoHS inquiries.
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FAQs
The FRS-R-4 uses ferrule-end terminations and has a compact 5 in length with 0.81 in width and height, simplifying panel layouts. It is a non-indicating, Class RK5 fuse designed for straightforward field wiring, reducing miswiring risks and enabling consistent replacement practices in standard control panels.
The fuse is rated for 4 A with an interrupt rating of 200 kAIC at 600 Vac and 20 kAIC at 300 Vdc. It supports 600 Vac and 300 Vdc voltage ratings, with a time-delay response of 10 seconds at 500% overload, suitable for motor protection and load switching in harsh industrial environments.
Yes. Its time-delay, dual-element design and 4 A rating provide reliable protection for motor starters and conveyors, while the high interrupt rating tolerates short-circuit events without unnecessary tripping, helping to minimize downtime in automated lines and packaging systems.
The FRS-R-4 carries CE marking, confirming compliance with European standards. For additional compliance and materials information, Eaton provides a RoHS tool to verify material restrictions and related inquiries, supporting global deployments.
The FRS-R-4 is a dual-element, time-delay RK5 fuse with a 4 A rating and ferrule terminations, offering a balance of fast protection and nuisance-trip resistance. Compared with single-element RK5 options, it provides improved coordination in panels with variable loads and higher fault current scenarios.