Eaton FWX-100A High Speed Fuse - CSA Certified UL Recognized
Part Number: FWX-100A
Quick Summary
FWX-100A high speed fuse from Eaton provides fast, reliable circuit protection for motor drives and power electronics in industrial environments. Engineers often battle nuisance fuse trips and slow fault isolation that extend downtime and raise maintenance costs. This device carries CSA Certified and UL Recognized approvals and RoHS CE compliance, ensuring broad North American and European acceptance. With blade-end x blade-end connections and stud mounting, it fits compact enclosures while delivering robust protection and low heat in the cabinet. The FWX-100A also aligns with Eaton datasheets for easy specification and procurement.
Product Information
Extended Description
FWX-100A Eaton: Eaton Bussmann series FWX high speed fuse, 100A 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-100A
UPC
051712150637
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
CSA Certified UL Recognized
Amperage Rating
100A RMS
Interrupt rating
200 kAIC Vac 50 kAIC at 250 Vdc
Watt losses
10 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-100A
Bussmann series FWX 35-2500A high speed fuses data sheet no. 720005
Datasheet - FNQ-30
Feature: 100A RMS amperage rating with a 200 kAIC Vac interrupt rating and 50 kAIC at 250 Vdc. Business Impact: Enables rapid fault clearing for high-energy systems, reducing arc exposure and equipment damage. Application: Motor drives, power converters, and control circuits in demanding industrial environments. Feature: Blade end x blade end and stud mounting options. Business Impact: Flexible installation across cabinet layouts and equipment housings, simplifying panel design and reducing assembly time. Application: Control panels, switchgear, and DC link protection with versatile mounting. Feature: Watt losses of 10 W and compact form factor (3.11 in L, 3.11 in H, 1.23 in W; 0.3 lb). Business Impact: Lower thermal rise and space-efficient footprints in crowded enclosures, cutting cooling needs and costs. Application: Enclosed drives and multi‑product assemblies requiring space optimization. Feature: Compliance and certifications RoHS, CE, CSA Certified, UL Recognized. Business Impact: Accelerates qualification, expands procurement options, and supports global installations. Application: North American and European deployments with consistent regulatory alignment.
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FAQs
FWX-100A offers blade end x blade end connections with a stud mounting option, allowing flexible integration into compact control cabinets and larger switchgear. Its footprint is 3.11 in long, 3.11 in high, and 1.23 in wide, with a weight of about 0.3 lb, enabling straightforward placement in tight panel layouts and rapid field replacement.
The FWX-100A is rated for 100A RMS with an interrupt capability of 200 kAIC Vac and 50 kAIC at 250 Vdc, plus 10 W watt losses. These ratings ensure fast fault interruption in AC and DC circuits, minimizing downstream damage to conductors, contactors, and drives while reducing downtime after faults.
FWX-100A carries RoHS compliance and CE marking, along with CSA Certified and UL Recognized certifications. These approvals support broader market access in North America and Europe, streamlining procurement and helping meet project qualification requirements.
Yes. With an interrupt rating of 50 kAIC at 250 Vdc and 100A RMS capacity, FWX-100A is designed for high-speed protection in DC buses and industrial drive applications, delivering fast fault clearing while maintaining reliable operation in demanding environments.
Plan for periodic inspection and replacement schedules aligned with operating load profiles and fault history. Leverage the provided Eaton datasheet and catalogs (720005 and related guides) for installation guidelines, replacement part compatibility, and procurement planning to optimize total cost of ownership.