Eaton FRS-R-50 Fuse - 200 kAIC @ 600 Vac
Part Number: FRS-R-50
Quick Summary
Eaton FRS-R-50 fuse provides time-delay, dual-element current-limiting protection for industrial control circuits. This design minimizes nuisance trips and reduces downtime in critical automation workflows by tolerating short inrush events while still interrupting faults. CE Marking confirms compliance with essential safety standards, and the RK5 class designation aligns with proven protection technology for reliable, industrial-grade protection. Designed for panel boards, motor control centers, and branch circuit protection, the FRS-R-50 offers compatible ferrule-end connections and a robust 50 A rating to support scalable industrial networks while maintaining safety and reliability.
Product Information
Extended Description
FRS-R-50 Eaton: Eaton Bussmann Series Class RK5 fuse, FRS-R, time-delay, dual-element, current limiting fuse, 50 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-50
UPC
051712508384
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
50 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
Feature → Business Impact → Application: The time-delay, dual-element construction provides selective coordination, allowing normal startup surges in motors and loads to pass without tripping, which reduces downtime and maintenance costs in automation lines. This yields measurable efficiency gains in production lines and helps maintain uptime in packaging, process, and handling systems. Feature → Business Impact → Application: Current-limiting capability quickly confines fault energy, minimizing arc flash exposure and downstream damage to contactors, transformers, and wiring. In practice, this translates to lower repair costs and shorter outage windows in energy-intensive applications such as CNC machines and conveyor systems. Feature → Business Impact → Application: High interrupt ratings—200 kAIC at 600 Vac and 20 kAIC at 250 Vdc—provide robust protection against large fault currents, enabling safer panel assemblies and better selectivity in power distribution schemas. This is critical for OEMs and integrators delivering complex machine builds and automated lines. Feature → Business Impact → Application: RK5 class fuse technology and ferrule-end terminations deliver straightforward installation and reliable long-term performance in standard Bussmann series environments, while non-indicating indicators reduce false alarms and simplify maintenance planning in multi-cabinet deployments. Feature → Business Impact → Application: 600 Vac / 250 Vdc voltage ratings and a 50 A amperage rating align with common industrial control voltages, enabling seamless compatibility with existing equipment, switchgear, and control panels. This reduces redesign needs and accelerates time-to-value for retrofits and new installations. Feature → Business Impact → Application: The elongated 13.38 in form factor and standard packaging streamline field stocking and panel integration, while a measured weight of 3.6 lb supports stable mounting in dense control panels. In practice, this improves serviceability and inventory management for maintenance teams in process industries.
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FAQs
To install the FRS-R-50, align the ferrule-end terminations with the corresponding fuse holders in the panel, ensure correct orientation for the RK5 configuration, and seat firmly to achieve proper contact. Verify that the installation environment meets the 600 Vac / 250 Vdc rating requirements and that the fuse is within its 50 A rating. Refer to the Bussmann series installation guidelines for torque and clearance recommendations during maintenance.
The FRS-R-50 is a 50 A, time-delay, dual-element, current-limiting fuse. It supports 600 Vac and 250 Vdc ratings, with an interrupt rating of 200 kAIC at 600 Vac and 20 kAIC at 250 Vdc. Its response time is specified as 10 seconds at 500% overcurrent, making it suitable for controlled fault interruption in demanding power distribution environments.
Yes. The time-delay, dual-element design accommodates motor inrush, while the current-limiting feature protects conductors and devices during faults. It is well-suited for motor control centers, panel boards, and branch circuits, providing reliable protection without nuisance trips during normal startup sequences.
The FRS-R-50 carries CE marking, complying with essential safety standards for Europe. It is built on the RK5 fuse class framework, which is a recognized standard in industrial protection technologies. This combination supports safe installation in compliant industrial panels and aligns with common industry practice for protective fuses in automation networks.
Using the FRS-R-50 reduces downtime by tolerating inrush conditions and preventing unnecessary outages, while providing robust fault interruption to safeguard downstream devices. Its durable RK5 construction and ferrule-end connections simplify stocking and replacement in maintenance programs, delivering lower long-term maintenance costs and improved equipment reliability in process and manufacturing environments.