Eaton FWX-40A High Speed Fuse - 600V 40A, UL Recognized
Part Number: FWX-40A
Quick Summary
The Eaton FWX-40A high-speed fuse protects motor drives and power electronics in industrial control panels. Engineers often battle nuisance fuse blows or slow fault isolation that drives downtime and repair costs. CE Marked and RoHS Compliant, with CSA Certification and UL Recognition, this fuse meets key global safety and reliability standards for international installations. Its compact form factor and mounting options support easier panel integration, while maintaining low watt losses for cooler operation. In 600 V systems, FWX-40A offers dependable protection that translates to improved uptime and predictable maintenance budgeting for industrial automation deployments.
Product Information
Extended Description
FWX-40A Eaton: Eaton Bussmann series FWX high speed fuse, 600V, 40A 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-40A
UPC
051712150484
Product Length/Depth
3.44 in
Product Height
0.89 in
Product Width
0.91 in
Product Weight
0.12 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Certifications
CSA Certified UL Recognized
Amperage Rating
40A RMS
Interrupt rating
50 kAIC at 250 Vdc 200 kAIC Vac
Voltage rating
600 V
Watt losses
5.2 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-40A
FWX-40A~BUSS HIGH SPEED FUSE
FWX-40A~BUSS HIGH SPEED FUSE
Datasheet - FNQ-30
Feature → Business Impact → Application: The FWX-40A uses a high-speed design to interrupt fault currents quickly, reducing energy let-through and protecting downstream equipment, which lowers downtime in automatic production lines and drives down maintenance costs. Application: Motor drives and power electronics in machine controls benefit from fast clearing to minimize arc energy and repeat faults. Feature → Business Impact → Application: Rated at 600 V and 40 A RMS with a 50 kAIC at 250 Vdc / 200 kAIC Vac interrupt rating, delivering robust fault handling for high-current transients and demanding industrial power rails. Application: Main switchboards and control panels in packaging and material handling equipment. Feature → Business Impact → Application: Blade end x blade end connections with stud mounting enable flexible, secure installation in confined spaces, reducing assembly time and error-prone wiring. Application: Panel-level protection in compact enclosures. Feature → Business Impact → Application: Compliance with CE Marked, RoHS, UL Recognized, and CSA Certified standards reduces procurement risk and accelerates project approvals. Application: Global deployments across automotive, food & beverage, and process industries. Feature → Business Impact → Application: Low watt losses at 5.2 W minimize heat in enclosed control cabinets, improving cooling efficiency and energy usage. Application: Repeated cycling in automation lines with stringent thermal management requirements.
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FAQs
FWX-40A supports blade end x blade end connections and stud mounting, enabling secure installation in standard electrical panels and control enclosures. Its compact 3.44 in length fits tight spaces while delivering dependable protection for motor drives and power electronics.
The FWX-40A is rated for 600 V, 40 A RMS, with an interrupt rating of 50 kAIC at 250 Vdc and 200 kAIC Vac, suitable for high-current fault conditions in industrial power systems.
Yes. FWX-40A is CE marked, RoHS compliant, and CSA Certified with UL Recognized status, ensuring global regulatory compliance and reliability for industrial installations.
Dimensions are 3.44 inches in length, 0.91 inches in width, and 0.89 inches in height, with a weight of 0.12 pounds, supporting compact panel installations.
FWX-40A is ideal for motor drives, control panels, and power electronics in automated manufacturing. Benefits include reduced downtime due to faster fault clearing, lower heat generation from watt losses (about 5.2 W), and compliance-driven procurement, all contributing to improved operational uptime and predictable maintenance costs.