Eaton FRS-R-70 Fuse - RK5 Class, 70 A, 600 Vac
Part Number: FRS-R-70
Quick Summary
FRS-R-70 fuse provides protection for industrial machines and control panels, delivering reliable current-limiting performance where uptime matters. Engineers often face nuisance trips or downtime from undersized or poorly specified fuses, especially in motor and drive circuits. This device carries CE marking and RoHS verification through Eaton's tools, underscoring regulatory compliance for European installations and eco-friendly design. As a Class RK5 time-delay, dual-element fuse, it combines dependable protection with coordinated response in demanding environments, supporting safer, compliant panels. The option aligns with Bussmann series offerings for standard blade-end holders, delivering straightforward integration and cost-efficient maintenance while enabling scalable protection for modern automation architectures.
Product Information
Extended Description
FRS-R-70 Eaton: Eaton Bussmann Series Class RK5 fuse, FRS-R, time-delay, dual-element, current limiting fuse, 70 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-70
UPC
051712508407
Product Length/Depth
7.88 in
Product Height
1.11 in
Product Width
1.11 in
Product Weight
0.35 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
70 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 design provides selective protection for loads with inrush currents. Business Impact: Reduces nuisance trips and protects equipment without sacrificing short-circuit clearance. Application: Motor starters, drives, and power distribution blocks in control panels. The result is improved uptime and smoother startup sequences across machine lines. Feature: Current-limiting capability supports high-energy fault interruption while keeping arc energy contained. Business Impact: Enhances personnel safety and reduces damage to downstream components. Application: Heavy-duty equipment feeders and industrial machinery with capacitive or inductive loads. This approach lowers total cost of ownership by minimizing collateral damage during faults. Feature: 70 A rating with 200 kAIC at 600 Vac (and 20 kAIC at 300 Vdc) ensures robust protection for medium-sized circuits. Business Impact: More predictable protection schemes and easier coordination with upstream protections. Application: Overcurrent protection in panelboards and machine power rails. Feature: Class RK5, blade end x blade end connections provide compatibility with standard fuse holders. Business Impact: Fast deployment and straightforward field upgrades without specialized tooling. Application: Retrofit projects and OEM panels that rely on common Bussmann series components. Feature: Non-indicating fuse indicator simplifies inventory and maintenance planning. Business Impact: Lower upfront cost and easier stocking for standard protection schemes. Application: Routine inspections and service programs in manufacturing environments.
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FAQs
Begin by verifying the catalog number FRS-R-70 and ensuring blade-end connections match your fuse holder. Power down and lockout-tagout the equipment, then remove the old fuse. Insert the new FRS-R-70 with care, aligning blade ends fully seated. Confirm the installation is within 600 Vac circuit ratings and restore power, monitoring for proper operation.
The FRS-R-70 is a time-delay, dual-element Class RK5 fuse with current-limiting features. Its 70 A rating and high interrupt ratings (200 kAIC at 600 Vac, 20 kAIC at 300 Vdc) enable selective protection during motor inrush events while minimizing nuisance tripping. This combination supports reliable motor starts and protects drives without compromising safety margins.
Yes. With a voltage rating of 600 Vac and a time-delay, dual-element construction, the FRS-R-70 is designed for control panels and machine feeders that experience motor startup surges and short-duration faults. Its RK5 class and blade-end connection further simplify integration in standard Bussmann-series panel assemblies.
The FRS-R-70 carries CE marking, signifying compliance with applicable European directives. Eaton also provides tools to verify RoHS compliance. This helps ensure the fuse meets regulatory expectations for European automation projects and supports safer, compliant panel designs.
The dual-element, time-delay design reduces nuisance trips, enabling smoother operation of motors and drives, which translates to lower downtime. Its robust interrupt ratings and standard blade-end compatibility simplify replacements and stocking, reducing maintenance time and inventory costs across multiple machines in automation plants.