Eaton FCF90RN Fuse - UL Listed Class CF, 200 kAIC
Part Number: FCF90RN
Quick Summary
The Eaton Bussmann FCF90RN fuse is a fast-acting Class CF cube fuse for protecting electrical circuits. Engineers often struggle to select fuses that survive cycling and overload without nuisance trips in demanding systems. UL Listed, CSA Certified, and CE marked, this component meets global safety and regulatory expectations for industrial controls. Its 90 A rating and 600 V rating support both AC and DC applications, while its blade-end connection simplifies replacement in standard holders. Designed for control panels, motor drives, and power distribution, it delivers reliable protection with predictable response, helping minimize downtime and mis-trips. Its reliability translates to safer, more efficient panel design and lower total cost of ownership.
Product Information
Extended Description
FCF90RN Eaton: Eaton Bussmann Series UL Class CF, FCF fuse, fast-acting, single-element cube fuse, 90 A, non-idicating fuse, interrupting rating of 50 kA at 600 Vdc and 200 kA at 600 Vac
Product Name
Eaton Bussmann series FCF fuse
Catalog Number
FCF90RN
UPC
051712362566
Product Length/Depth
3.01 in
Product Height
2.125 in
Product Width
1 in
Product Weight
0.284 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Certifications
UL Listed CSA Certified
Amperage Rating
90 A
Frequency rating - max
60 Hz
Frequency rating - min
50 Hz
Interrupt rating
200 kAIC at 600 Vac 50 kAIC at 600 Vdc
Response time
8 min at 200%
Voltage rating
600 Vac, 600 Vdc
Color
Black
Fuse type
Fast acting Class CF
Material
Glass filled PES
Number of elements
1
Operating Temperature
-40° to 80°C
Packaging type
Standard
Terminal material
Electroless tin plated copper alloy terminal
Class
Class CF
Connection
Blade end
Fuse indicator
Non-indicating
Special features
Superior overload and cycling capabilities
Used with
TCFH100N, CCP2-3-100CF
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
The Power of Space
The Power of Space
Bussmann series Fast-acting CUBEFuse data sheet no. 2147
The FCF90RN fuse is a fast-acting Class CF device rated at 90 A with a 600 Vac/dc rating, delivering precise overload protection that minimizes upstream damage and extends equipment life. This feature translates to reduced downtime and lower maintenance costs in demanding industrial environments, especially in control panels and motor drive assemblies where rapid fault clearing is critical. Its high interrupt capability—200 kAIC at 600 Vac and 50 kAIC at 600 Vdc—allows safe operation in systems with high fault currents, reducing the risk of cascading failures during short circuits in power distribution and inverter applications. The non-indicating, single-element cube design with blade-end terminals simplifies field replacement, speeding maintenance and minimizing accidental mis-wiring during swaps. Compatibility with Bussmann family devices, including TCFH100N and CCP2-3-100CF, ensures straightforward integration into existing protection schemes, streamlining procurement and stocking. The glass-filled PES body provides robust temperature resistance and reliable performance across -40°C to 80°C, supporting both indoor and harsh environments common in industrial automation. Compliance with CE, RoHS, UL Listed, and CSA Certified standards assures regulatory alignment and traceability, reducing compliance risk during audits. Operationally, the fuse supports a broad range of applications—from simple control circuits to complex power distribution feeders—delivering predictable response, repeatable trips, and a clear safety margin for engineers designing resilient protection architectures.
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FAQs
The FCF90RN is UL Listed, CSA Certified, and CE marked, with RoHS compliance. These certifications indicate conformity to recognized safety and environmental standards across North America and Europe, helping manufacturers meet regulatory requirements, ease supplier qualifications, and reduce the risk of compliance-related board holds or field failures in industrial automation projects.
Yes. The FCF90RN is designed to integrate with Bussmann protection schemes and is listed as used with TCFH100N and CCP2-3-100CF devices. This compatibility streamlines installation in existing control panels, minimizes part numbers needed for spares, and supports consistent protection coordination across a network of Bussmann components.
The fuse provides 90 A with voltage ratings of 600 Vac and 600 Vdc. Its interrupt ratings are 200 kAIC at 600 Vac and 50 kAIC at 600 Vdc, enabling reliable fault clearance in high-energy AC systems and substantial DC circuits. These ratings support safeguarding power distribution, motor drives, and DC links without premature tripping in routine startup surges.
The FCF90RN features a blade-end connection and a compact 3.01 in L × 1 in W × 2.125 in H footprint, which simplifies slotting into standard Biz Bussmann holders. The non-indicating single-element cube design reduces mis-wiring risks during replacement and speeds field swaps, contributing to lower labor costs and faster maintenance cycles in busy panel environments.
By delivering rapid fault clearance and high interrupt capacity, the FCF90RN minimizes collateral damage from short circuits, reducing downtime and unwarranted trips. Its robust environmental ratings and wide operating temperature range improve reliability in harsh settings, lowering replacement frequency and spares carrying costs while improving overall equipment uptime and device lifecycle costs.