Eaton FRS-R-45 Fuse - RK5 Time-Delay, 600 Vac
Part Number: FRS-R-45
Quick Summary
The Eaton Bussmann FRS-R fuse delivers reliable time-delay protection for branch circuits in industrial and commercial equipment. Nuisance trips and protection miscoordination can drive downtime and costly repairs, especially in motor-driven loads and power distribution panels; this dual-element fuse addresses these challenges with selective response that tolerates inrush while still interrupting faults. CE marking confirms compliance with European safety standards, while the RK5 class designation aligns with Bussmann’s proven protection family. Eaton's RoHS program further supports compliance in modern assemblies. With a 45 A rating and a high 600 Vac / 250 Vdc capability, it suits mixed-technology systems and helps shorten commissioning cycles. In procurement terms, it offers reliability, predictable performance, and lifecycle cost savings.
Product Information
Extended Description
FRS-R-45 Eaton: Eaton Bussmann Series Class RK5 fuse, FRS-R, time-delay, dual-element, current limiting fuse, 45 A, non-indicating fuse, interrupting rating of 200 kA at 600 Vac and 20 kA at 250 Vdc
Product Name
Eaton Bussmann series FRS-R fuse
Catalog Number
FRS-R-45
UPC
051712508377
Product Length/Depth
13.38 in
Product Height
2.88 in
Product Width
2.88 in
Product Weight
3.6 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
45 A
Interrupt rating
20 kAIC at 250 Vdc 200 kAIC at 600 Vac
Response time
10 sec at 500%
Voltage rating
600 Vac, 250 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 is engineered to tolerate short surges and motor inrush while maintaining fast fault interruption. This reduces nuisance trips, extends contact life, and improves protection coordination within panels and switchgear. It is well suited for motor loads, conveyors, pumps, and other equipment where inrush is common, delivering measurable uptime improvements and smoother operation. Class RK5, non-indicating fuse with ferrule ends provides standardized protection across the Bussmann catalog. The ferrule-end construction simplifies installation, enables secure terminations in terminal blocks, and supports straightforward field replacement without special tools. High interrupt ratings—200 kAIC at 600 Vac and 20 kAIC at 250 Vdc—give robust fault-current handling for serious short-circuit events, boosting safety margins in industrial facilities. The 600 Vac / 250 Vdc rating offers flexibility across mixed-technology panels and control systems, while the non-indicating design keeps panel aesthetics clean. With a 13.38 in length, 2.88 in width, and 2.88 in height, the FRS-R-45 fits standard Bussmann RK5 enclosures and supports straightforward stocking and replacement planning. The ferrule-to-ferrule end connections and compliant construction streamline mounting, wire termination, and serviceability in today’s automated environments.
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FAQs
Install the FRS-R-45 as a ferrule-end fuse in a compatible RK5 panel or fuse block. Ensure power is de-energized before replacement, align the ferrule ends with the corresponding terminals, and tighten to secure contact. The 13.38 inch length and dual-element design fit standard Bussmann RK5 enclosures, enabling quick field replacement and minimal downtime during maintenance.
Key specs include a 45 A amperage rating, 600 Vac / 250 Vdc voltage rating, 200 kAIC interrupt rating at 600 Vac, 20 kAIC at 250 Vdc, and a time-delay response of about 10 seconds at 500% overcurrent. The fuse is non-indicating, ferrule-ended, and part of the RK5 family for standardized protection in control panels.
Yes. The dual-element time-delay design tolerates motor inrush while protecting against sustained faults. Its 45 A rating and high interrupt ratings support motor驱动 panels, conveyors, and pumps, reducing nuisance trips and improving protection coordination with other devices in automation lines.
The FRS-R-45 is CE marked, aligning with European safety standards. It is part of the RK5 protection family and Eaton provides RoHS-related compliance guidance through its RoHS search tools, supporting regulatory conformance in modern assemblies.
By reducing nuisance trips and improving protection coordination, the FRS-R-45 lowers downtime and maintenance costs. Its robust fault-current handling, easy installation, and standardized RK5 compatibility simplify stocking and replacement, contributing to lower lifecycle costs in panel builds and machinery fleets.