Eaton FRS-R-500 Fuse - Class RK5
Part Number: FRS-R-500
Quick Summary
FRS-R-500 fuse provides time-delay protection for industrial power circuits in control panels and machine assemblies. Selecting fuses that balance fast protection with nuisance-tripping can delay startups and complicate troubleshooting. CE marked, Class RK5 compatibility, and a dual-element current-limiting design enable reliable protection across 600 Vac and 300 Vdc systems. This solution reduces downtime, improves safety, and scales with panel builds and international deployments.
Product Information
Extended Description
FRS-R-500 Eaton: Eaton Bussmann Series Class RK5 fuse, FRS-R, time-delay, dual-element, current limiting fuse, 500 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-500
UPC
051712508551
Product Length/Depth
5.5 in
Product Height
1.06 in
Product Width
1.06 in
Product Weight
3 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
500 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 → Business Impact → Application: Time-delay, dual-element design (Class RK5) allows controlled responses to temporary inrush currents common in motors and drives, reducing nuisance trips while still delivering fast fault interruption. Business impact: smoother startups, fewer production pauses, and longer equipment life in automation panels; Application: motor feeders and VFD-controlled drives in manufacturing lines. Feature → Business Impact → Application: 500 A amperage rating with a 200 kAIC at 600 Vac and 20 kAIC at 300 Vdc interrupting capability provides robust fault containment for high-current feeders. Business impact: enhanced safety margins, minimized conductor damage, and reduced arc energy; Application: large power distribution and machine control circuits. Feature → Business Impact → Application: Current-limiting performance lowers energy released during a fault, protecting wiring, switches, and cabinets. Business impact: lower collateral damage and reduced replacement costs; Application: branch-circuit protection in control panels. Feature → Business Impact → Application: Blade end x blade end connections and standard packaging enable quick, drop-in replacement in Bussmann RK5 fuse blocks. Business impact: faster maintenance, lower labor costs, and improved field service efficiency; Application: retrofit projects and new builds. Feature → Business Impact → Application: CE Marked compliance supports global deployment and regulatory readiness. Business impact: smoother international approvals and market access; Application: projects in Europe and other CE regions. Feature → Business Impact → Application: Compact 5.5 in length with a 3 lb weight delivers reliable protection without excessive panel depth. Business impact: streamlined enclosure design and reduced space; Application: compact control panels and large-scale assemblies.
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FAQs
The FRS-R-500 uses blade-end connections designed for RK5 fuse blocks. Verify compatibility with standard Bussmann RK5 mounting hardware, ensure secure blade contact torque, and follow Siemens/UL panel guidelines for safe clearance and heat dissipation. Its non-indicating design keeps panel faces clean, aiding diagnostics during routine maintenance.
Yes. The time-delay dual-element RK5 design handles inrush currents typical of motors, while the 500 A rating and high interrupt capacity protect feeder circuits. Use it on controlled motor feeders and drives where nuisance trips must be minimized without sacrificing fault protection.
The FRS-R-500 is CE marked and belongs to the Class RK5 family, offering standardized protection for European and global installations. Its current-limiting and dual-element features meet common industry protection requirements in industrial control panels.
Amperage rating: 500 A. Voltage ratings: 600 Vac / 300 Vdc. Interrupt ratings: 200 kAIC at 600 Vac and 20 kAIC at 300 Vdc. Response time is 10 seconds at 500% overload, delivering reliable protection for power circuits and equipment.
The fuse measures 5.5 in in length with 1.06 in height and width, weighing about 3 lb. Its blade-end x blade-end connections fit standard RK5 fuse holders, enabling straightforward retrofits or new builds in compact control panels.