Eaton FRS-R-65 Fuse - 200 kAIC at 600 Vac, 20 kAIC at 300 Vdc
Part Number: FRS-R-65
Quick Summary
The Eaton FRS-R-65 fuse is a time-delay, dual-element protection device designed for branch circuits in industrial control panels. Selecting the wrong fuse can lead to nuisance trips, equipment damage, or costly downtime during startup or fault conditions. This CE-marked, Class RK5 family fuse delivers reliable protection with documented electrical performance, helping you stay compliant while minimizing unplanned outages. By combining current-limiting capability with a robust interrupt rating, it supports safer disconnections and easier maintenance in high-demand applications, while fitting seamlessly into standard Bussmann series installations and spares inventories.
Product Information
Extended Description
FRS-R-65 Eaton: Eaton Bussmann Series Class RK5 fuse, FRS-R, time-delay, dual-element, current limiting fuse, 65 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-65
UPC
051712508964
Product Length/Depth
7.88 in
Product Height
1.11 in
Product Width
1.11 in
Product Weight
0.61 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
65 A
Interrupt rating
200 kAIC at 600 Vac 20 kAIC at 300 Vdc
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: The FRS-R-65’s time-delay, dual-element design provides short-circuit protection without compromising normal operation, reducing nuisance trips and extending equipment life in motor drives and control circuits. This translates to measurable uptime gains and lower maintenance costs for repetitive load cycles in manufacturing lines and packaging systems. Application: Use in MCCs and feeder circuits where short transients are expected but sustained overloads must be quickly isolated to protect downstream equipment.Feature → Business Impact → Application: 65 A amperage rating paired with a 200 kAIC interrupt rating at 600 Vac delivers robust fault protection for high-energy circuits, enabling rapid isolation of faults while minimizing collateral damage. This improves safety margins and supports compliance with electrical protection standards in industrial facilities. Application: Protection for branch circuits feeding motors, transformers, and power supplies in automation cabinets.Feature → Business Impact → Application: Class RK5 designation and blade end-to-end connection simplify integration into Bussmann-series protective schemes and standard panel assemblies. The non-indicating design reduces visual wear, while standard packaging accelerates stocking and replacement. Application: Retrofit or new installs in existing control panels with consistent Bussmann-series components for streamlined maintenance.Feature → Business Impact → Application: 7.88 in length, 1.11 in height, and 1.11 in width with a 0.61 lb weight balance ease of handling and replacement in restricted spaces. This enables faster commissioning and lower labor costs during maintenance windows. Application: Thin-control cabinets and compact fuse blocks where space is at a premium and serviceability matters.Feature → Business Impact → Application: Compliance with CE marking and documented performance (response time of 10 seconds at 500% for timed operation) provides confidence in regulatory alignment and predictable timing for fault clearing. Application: European installations and mission-critical systems where documented timing characteristics support system reliability and regulatory audits.
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FAQs
The FRS-R-65 uses blade end x blade end connections, enabling straightforward insertion into standard Bussmann-series panels and fuse blocks. Its Class RK5 designation supports compatibility with Bussmann protective devices, and its standard packaging simplifies stocking. Ensure wiring is correctly terminated to blade terminals and verify voltage ratings (up to 600 Vac, 300 Vdc) before installation to maintain proper protection levels.
The fuse provides current-limiting protection with an interrupt rating of 200 kAIC at 600 Vac and 20 kAIC at 300 Vdc. In a short-circuit, the device will interrupt the fault promptly while limiting arcing and fault energy, helping protect downstream components, reduce equipment damage, and maintain safer switchgear operation during faults.
Yes. The FRS-R-65 is rated for 600 Vac and 300 Vdc, offering dual compatibility for AC and DC-powered control circuits. This makes it a versatile choice for mixed-voltage panels and drives, as long as the circuit current remains within the 65 A rating and complies with the 200 kAIC/20 kAIC interrupt requirements.
Time-delay Class RK5 fuses excel in applications with short transients or inrush currents, such as motor drive circuits, PLC power rails, and control cabinets. They allow normal startup surges without nuisance trips while still providing robust protection against sustained faults. The FRS-R-65 is well-suited for industrial automation panels, MCCs, and branch circuits requiring reliable protection and quick fault isolation.
The non-indicating design reduces visual wear, while standardization with Eaton Bussmann components simplifies inventory management and replacements. With a high interrupt rating and time-delay operation, you can reduce downtime from nuisance trips and avoid costly repairs due to short-circuit energy. Refer to the Bussmann series data sheet for detailed electrical characteristics and replacement guidelines.