Eaton FRN-R-1-8/10 Fuse - Class RK5 Time-Delay
Part Number: FRN-R-1-8/10
Quick Summary
FRN-R-1-8/10 fuse is a reliable time-delay, dual-element current-limiting device designed to protect branch circuits in control panels and industrial power distribution. Engineers often face nuisance trips and mis-sizing that disrupt production and increase maintenance costs. It carries CE marking and RK5 class protection, with an 1.8 A rating and high interrupt ratings of up to 200 kAIC at 250 Vac and 20 kAIC at 125 Vdc, enabling safe operation across mixed loads. This fuse's ferrule-to-ferrule end connections support swift, field-installable upgrades to existing RK5 architectures, while its non-indicating design minimizes false failure signs in indicator circuits. For procurement, referencing the Bussmann series data sheets and catalog numbers ensures consistent global sourcing, reducing variation across sites and improving compliance, reliability, and overall equipment effectiveness.
Product Information
Extended Description
FRN-R-1-8/10 Eaton: Eaton Bussmann Series Class RK5 fuse, FRN-R, time-delay, dual-element, current limiting fuse, 1.8 A, non-indicating fuse, interrupting rating of 200 kA at 250 Vac and 20 kA at 125 Vdc
Product Name
Eaton Bussmann series FRN-R fuse
Catalog Number
FRN-R-1-8/10
UPC
051712507134
EAN
5027590426077
Product Length/Depth
0.56 in
Product Height
2 in
Product Width
0.56 in
Product Weight
0.5 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
1.8A
Interrupt rating
20 kAIC at 125 Vdc 200 kAIC at 250 Vac
Response time
8 sec at 500%
Voltage rating
250 Vac, 125 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 Fusetron FRN-R RK5 fuse data sheet for up to 60 amps No. 1019
Feature: Time-delay, dual-element construction provides selective protection for motors and control circuits without nuisance interruptions during short surges. Business Impact: Reduces unintended trips and extends motor life, lowering maintenance downtime. Application: Ideal for machine control panels and automation racks where inrush currents are common. Feature: Class RK5, ferrule-end connections ensure compatibility with standard RK5 fuse blocks. Business Impact: Simplifies retrofits and stock management, reducing assembly time. Application: Widely used in industrial distribution panels and OEM control enclosures. Feature: High interrupt rating up to 200 kAIC at 250 Vac and 20 kAIC at 125 Vdc. Business Impact: Maximizes downstream protection and reduces arc risk in high-energy environments. Application: Power supplies and automation gear in demanding manufacturing lines. Feature: 1.8 A rating with CE compliance. Business Impact: Enables precise load protection and coordinated protection schemes with upstream devices. Application: Low-current protection stages in control panels and servo systems. Feature: Non-indicating fuse with standard packaging. Business Impact: Reduces panel clutter and allows maintenance planning through external diagnostics. Application: Dense, multi-channel control cabinets in modern factories.
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FAQs
FRN-R-1-8/10 uses ferrule-end x ferrule-end connections and is designed for standard RK5 fuse blocks. Verify that the holder is rated for 250 Vac and that the enclosure provides adequate space for a 0.56 in length and 0.56 in width device. When retrofitting, consult the RK5 catalog and ensure proper mounting orientation and torque per the data sheet.
The fuse is rated for 1.8 A and supports interrupt ratings of up to 200 kAIC at 250 Vac and 20 kAIC at 125 Vdc. It operates at 250 Vac or 125 Vdc and features a time-delay, dual-element design that tolerates short surges without nuisance blowing, making it suitable for mixed-load panel applications.
Yes, FRN-R-1-8/10 supports 125 Vdc with a 20 kAIC interrupt rating. For higher DC applications or different voltages, verify the specific system requirements against the data sheet and confirm coordination with upstream protection to maintain arc-quenching performance.
The time-delay design allows temporary inrush and surge currents to pass without tripping, while still providing fast interruption during sustained faults. This improves equipment uptime, reduces nuisance trips on motors and automation drives, and supports reliable coordination with upstream fuses and breakers in automated lines.
Key documentation includes the Bussmann full-line catalogs and the FRN-R RK5 data sheet referenced in Eaton’s Bussmann series materials. CE marking confirms European safety compliance. Additional resources like RoHS information are accessible via Eaton’s compliance tools and technical bulletins to support global procurement and quality assurance.