Eaton FWX-80A High Speed Fuse - UL Recognized
Part Number: FWX-80A
Quick Summary
The Eaton FWX-80A high-speed fuse protects power circuits and motor drives in control panels. Engineers often face nuisance fuse failures, limited selectivity, and extended downtime when protection mismatches load. FWX-80A comes UL Recognized, CSA Certified, and RoHS/CE compliant, delivering safe operation across 600 V systems. With 80 A RMS, 200 kAIC interrupt rating and blade-end plus stud mounting, it reduces heat, improves uptime, and simplifies panel design. The fuse’s RoHS and CE compliance supports global sourcing and reduces regulatory risk across manufacturing sites. In practice, end users see easier stock management thanks to the Bussmann FWX family, while maintaining precise protection coordination with upstream breakers. This combination supports faster maintenance decisions, safer outages, and predictable lifecycle costs for industrial automation projects.
Product Information
Extended Description
FWX-80A Eaton: Eaton Bussmann series FWX high speed fuse, 600V, 80A RMS, 200 kAIC Vac, 50 kAIC at 250 Vdc, Non Indicating, High speed fuse, Blade end X blade end, Stud
Product Name
Eaton Bussmann series FWX high speed fuse
Catalog Number
FWX-80A
UPC
051712150613
Product Length/Depth
3.11 in
Product Height
3.11 in
Product Width
1.23 in
Product Weight
0.3 lb
Warranty
Not Applicable
Compliances
RoHS Compliant CE Marked
Certifications
UL Recognized CSA Certified
Amperage Rating
80A RMS
Interrupt rating
200 kAIC Vac 50 kAIC at 250 Vdc
Voltage rating
600 V
Watt losses
8.1 W
Packaging type
Standard
Connection
Blade end x blade end
Fuse indicator
Non Indicating
Mounting method
Stud
Bussmann series complete full line catalog no. 1007
Eaton Specification Sheet - FWX-80A
Bussmann series FWX 35-2500A high speed fuses data sheet no. 720005
Bussmann series FWX 35-2500A high speed fuses data sheet no. 720005
Datasheet - FNQ-30
Feature: 600 V rating and high interrupt capability. Business Impact: Fast fault interruption minimizes arc energy and damage, enabling safer starts and reduced downtime in power distribution and motor-drive circuits. Application: Ideal for industrial control panels, feeders, and automation drives where rapid isolation is critical. Feature: Blade-end x blade-end connection with stud mounting. Business Impact: Flexible, secure installation that simplifies retrofit and field upgrades while delivering robust mechanical support in harsh environments. Application: Works with standard Bussmann FWX fuse blocks and panel assemblies in control architectures. Feature: Regulatory compliance and safety certifications. Business Impact: Ensures compliance across global sites, reduces regulatory risk, and aids procurement with UL Recognized, CSA Certified, RoHS/CE markings. Application: Suitable for international manufacturing and multi-region deployments. Feature: Low watt losses and compact form factor. Business Impact: Minimizes heat rise in panels, improves energy efficiency, and extends component life. Application: Useful in dense control panels and high-density electrical rooms. Feature: Compact weight and standard packaging. Business Impact: Easier handling, reduced shipping costs, and faster replenishment for maintenance teams. Application: Helpful in routine stock management and field servicing.
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FAQs
FWX-80A features blade-end x blade-end connections with a stud mounting option, enabling secure, quick integration into standard Bussmann FWX fuse blocks and panel assemblies. For retrofit work, verify blade terminals match the existing fuse blocks and use appropriate mounting hardware. Ensure the circuit is de-energized before installation, and follow manufacturer torque specs to maintain interrupt performance.
FWX-80A provides a 600 V rating, 80 A RMS continuous current, and an interrupt rating of 200 kAIC for AC circuits (50 kAIC at 250 Vdc). It weighs about 0.3 lb and has a watt loss of approximately 8.1 W. This combination supports fast fault interruption with controlled heat generation, aiding reliability in industrial power circuits.
Yes. With its high interrupt rating, 600 V voltage capability, and 80 A RMS rating, FWX-80A is well-suited for motor drives, automation controllers, and power feeders in MCCs and control panels. Its non-indicating design and robust mounting options simplify panel layouts, while UL Recognized and CSA Certified status supports safe, compliant operation in demanding environments.
FWX-80A carries UL Recognized and CSA Certified marks, along with RoHS and CE compliance. These certifications indicate adherence to safety, performance, and environmental standards, facilitating global procurement, reducing compliance risk, and ensuring compatibility with international electrical codes in industrial facilities.
FWX-80A’s fast-acting protection minimizes fault propagation and unplanned outages, improving uptime and reducing repair costs. Its compact weight and standard packaging simplify stocking and field replacement, lowering total cost of ownership over time. Regular inspection of connections and mounting hardware helps maintain performance, while its regulatory certifications support ongoing compliance across locations.