Eaton FRS-R-225 Fuse - Class RK5, 20 kAIC
Part Number: FRS-R-225
Quick Summary
Eaton FRS-R-225 fuse delivers time-delayed, current-limiting protection for electrical panels and motor controls. Engineers often struggle with nuisance trips and selecting protective devices that stand up to surges without sacrificing uptime. This model is CE marked and part of the RK5 class family, delivering reliable protection with a dual-element design for high interrupting ratings. Designed for 600 Vac and 300 Vdc systems, it helps simplify stocking and maintenance while supporting compliance across industrial installations. Supported by standard blade-end connections, it aligns with common panel layouts, reducing retrofit effort and total cost of ownership. The product's time-delay response also coordinates with soft starters and drive systems, improving overall system reliability for multi-line applications.
Product Information
Extended Description
FRS-R-225 Eaton: Eaton Bussmann Series Class RK5 fuse, FRS-R, time-delay, dual-element, current limiting fuse, 225 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-225
UPC
051712508490
Product Length/Depth
11.63 in
Product Height
2.33 in
Product Width
2.33 in
Product Weight
2.35 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
225 A
Interrupt rating
20 kAIC at 300 Vdc 200 kAIC at 600 Vac
Response time
10 sec at 500%
Voltage rating
600 Vac, 300 Vdc
Number of elements
Dual
Packaging type
Standard
Class
Class RK5
Connection
Blade end x blade 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 65-600 A fuse data sheet no. 1018
Feature: Time-delay, dual-element, current-limiting RK5 fuse. Business impact: coordinates fault clearing with short surges, reducing nuisance trips while protecting sensitive components. Application: panel boards and motor drives where surge energy is common, enabling safer operation and longer component life. Feature: High interrupt ratings of 200 kAIC at 600 Vac and 20 kAIC at 300 Vdc. Business impact: robust protection for high-energy circuits, minimizing downstream damage and unplanned downtime. Application: feeders and power distribution where fault currents can spike. Feature: 225 A amperage rating with blade-end to blade-end connection. Business impact: easy drop-in replacement in common control panels and clean wiring layouts, lowering commissioning time. Application: standard industrial control panels and power distribution blocks. Feature: 600 Vac / 300 Vdc voltage rating. Business impact: supports mixed AC/DC environments, reducing the need for multiple fuse types. Application: mixed-service automation equipment and DC bus protections. Feature: Non-indicating indicator with standard packaging. Business impact: lower maintenance costs and simplified visual inspection, while standard packaging accelerates stocking. Application: retrofit projects and new builds requiring straightforward installation and serviceability.
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FAQs
The FRS-R-225 is a dual-element, time-delay fuse with blade end x blade end connections, designed for standard panel layouts. It fits common industrial control cabinets and feeders that use RK5 class fuses, simplifying replacement and ensuring consistent protection across line and load interfaces.
The time-delay characteristic allows the fuse to tolerate short-term surge currents, such as startup transients from motors, while still interrupting sustained faults. This reduces nuisance trips during startup and improves overall drive system uptime, helping protect motor windings and drives without sacrificing safety.
Yes. The fuse is rated for 600 Vac and 300 Vdc, making it suitable for mixed AC and DC circuits commonly found in automation and control panels. This versatility supports consolidated stock and simplified maintenance for facilities with diverse power architectures.
The FRS-R-225 is CE marked, indicating conformity with European safety and performance standards. RoHS compliance information can be verified using Eaton’s RoHS Search Tool, helping ensure environmental compliance across global installations. Always confirm current certification status in your region and with your procurement policy.
With a non-indicating fuse indicator and standard packaging, maintenance relies on periodic electrical testing rather than visual status checks. The dual-element design and high interrupt ratings support longer service intervals, while standard blade-end connections enable quick replacement, reducing downtime and total cost of ownership in high-volume production lines.