Eaton FRS-R-80 Fuse - Class RK5, 600 Vac CE Marked
Part Number: FRS-R-80
Quick Summary
The Eaton FRS-R-80 fuse provides time-delay protection for industrial power circuits in control panels. Engineers often wrestle with nuisance trips caused by motor inrush and fluctuating loads that disrupt production. The device is CE marked and belongs to the RK5 class family, with interrupt ratings of 200 kAIC at 600 Vac and 20 kAIC at 300 Vdc to cover high-energy drives and feeders. Its time-delay dual-element design minimizes nuisance trips while preserving short-circuit protection, helping maintenance teams reduce downtime. In practice, it supports compliant protection schemes in automated lines and machine controls, improving reliability and workforce productivity. Size and blade-end connections enable straightforward panel mounting and fast replacement.
Product Information
Extended Description
FRS-R-80 Eaton: Eaton Bussmann Series Class RK5 fuse, FRS-R, time-delay, dual-element, current limiting fuse, 80 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-80
UPC
051712508414
Product Length/Depth
7.88 in
Product Height
1.11 in
Product Width
1.11 in
Product Weight
0.4 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
80 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
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 65-600 A fuse data sheet no. 1018
Feature: Time-delay, dual-element, current-limiting design. Business Impact: Reduces nuisance trips during motor startups and transient overloads, preserving equipment life and minimizing unplanned downtime. Application: Motor drives, conveyors, automation panels in manufacturing environments. Feature: High interrupt rating of 200 kAIC at 600 Vac and 20 kAIC at 300 Vdc. Business Impact: Enhanced fault isolation protects upstream power supplies and drives, reducing collateral damage. Application: High-energy feeders and drive circuits in OEM equipment. Feature: Blade-end x blade-end connections with standard packaging. Business Impact: Simple, fast replacement and consistent installation across RK5 fuse kits. Application: Control cabinets and machine panels with standard Bussmann RK5 footprints. Feature: Non-indicating fuse indicator. Business Impact: Lower panel clutter and predictable maintenance planning, with external monitoring recommended. Application: Remote panels and assemblies where visual status indicators are managed by the system. Feature: Class RK5 designation and 80 A rating. Business Impact: Clear protection class alignment with Bussmann RK5 family and mid-range protection for motors and controls. Application: EU and NA automation projects requiring reliable, standards-aligned protection.
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FAQs
The FRS-R-80 uses blade-end x blade-end connections designed for standard RK5 fuse holders, with a compact footprint of 7.88 in length and 1.11 in width. It is rated for 80 A, supports 600 Vac and 300 Vdc operation, and carries CE Marking for European safety compliance. This makes replacement straightforward in existing Bussmann RK5-based panel layouts, reducing fitment risk and downtime during maintenance.
The time-delay aspect of the FRS-R-80, implemented through a dual-element design, allows brief inrush currents during motor starting while still providing rapid protection from sustained faults. This balance minimizes nuisance trips during startup sequences common in conveyors and automated drives, improving line throughput and reducing unplanned stops without compromising safety or protection levels.
Yes. The FRS-R-80 is CE marked, indicating conformity with relevant European safety, health, and environmental protection standards. It belongs to the RK5 fuse family, which aligns with industry practices for class-rated protection in control circuits. When integrating into EU panels, verify compatibility with local EN standards and ensure proper panel labeling for compliance and traceability.
The FRS-R-80 offers an interrupt rating of 200 kAIC at 600 Vac and 20 kAIC at 300 Vdc. It is rated for 600 Vac and 300 Vdc operation, with an 80 A current rating. These specs support protection for medium-sized power circuits, motor drives, and control panels while maintaining high fault tolerance in industrial environments.
Plan for blade-end x blade-end connections in standard RK5 fuse holders and maintain compatible enclosure spacing. The fuse is non-indicating, so rely on system-level status or external indicators for fault diagnostics. Its standard packaging and dimensions (7.88 in length, 1.11 in width, 1.11 in height) simplify integration into existing control panels and ease replacement during maintenance routines.