Eaton FWX-125A High Speed Fuse - UL Recognized
Part Number: FWX-125A
Quick Summary
Eaton FWX-125A high speed fuse protects electrical circuits in motor drives and distribution panels. Engineers often struggle with nuisance fuse trips, slow protection responses, and mis coordination with control logic during high-current events. The FWX-125A carries UL Recognized, CSA Certified, and CE RoHS compliance, ensuring regulatory alignment and safer procurement practices. With blade end x blade end connections and stud mounting, this compact device offers reliable protection without complicating installation or maintenance, delivering lower downtime and improved system reliability for harsh industrial environments.
Product Information
Extended Description
FWX-125A Eaton: Eaton Bussmann series FWX high speed fuse, 125A 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-125A
UPC
051712150644
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
CE Marked RoHS Compliant
Certifications
UL Recognized CSA Certified
Amperage Rating
125A RMS
Interrupt rating
50 kAIC at 250 Vdc 200 kAIC Vac
Watt losses
12.5 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-125A
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
The FWX-125A delivers 125A RMS protection with a 50 kAIC at 250 Vdc and 200 kAIC at 120/250 VAC, enabling fast intervention during short circuits and reducing the risk of transformer or motor winding damage. This high speed protection translates to measurable uptime gains and lower maintenance costs in motor drives, power distribution, and industrial controls. Its blade end x blade end terminals and stud mounting provide flexible installation options across control panels and equipment racks, simplifying retrofits and new builds alike. The compact 3.11 in length and 1.23 in width save panel space while maintaining robust interrupt performance and predictable trip characteristics. Compliance with CE, RoHS, UL Recognized, and CSA Certified standards supports formal QA processes and supplier qualification. With a non-indicating fuse element, the FWX-125A minimizes BOM complexity and reduces counterfeit risk in the supply chain.
Get a Quick Quote for a Eaton FWX-125A
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton FWX-125A?
Enquire Now
FAQs
FWX-125A supports blade end x blade end connections along with stud mounting, offering flexible installation for both panel-mounted and equipment-integrated protection. The compact 3.11 in length and 1.23 in width help fit tight spaces, while the non-indicating design reduces indicator clutter in control cabinets.
The FWX-125A provides a 125A RMS ampere rating with an interrupt capability of 50 kAIC at 250 Vdc and 200 kAIC Vac. It also has a watt loss of 12.5 W, supporting predictable thermal performance and ensuring reliable protection for high-current DC and AC circuits.
Yes. The FWX-125A is UL Recognized, CSA Certified, and CE Marked RoHS Compliant. These certifications support compliance with procurement standards, safety regulations, and environmental requirements in global industrial applications.
FWX-125A is well suited for motor drives, industrial controls, and power distribution panels requiring fast, reliable short-circuit protection. Its blade-end and stud-mount design supports retrofit projects and new installations in harsh environments where uptime and safety are critical.
FWX-125A is a non-indicating fuse, meaning replacement relies on system maintenance and protection coordination rather than visual status. Plan for scheduled replacement after trip events and ensure compatibility with blade-end or stud-mmount configurations to maintain system integrity and minimize downtime.