Eaton FWA-500ASI4 High-Speed Fuse - 500V/500A RoHS
Part Number: FWA-500ASI4
Quick Summary
The FWA-500ASI4 high-speed fuse protects electrical power circuits quickly in industrial equipment. Unprotected surges or slow fuses can trigger costly downtime and collateral damage. RoHS compliant; for CE/UL or other certifications, contact factory. Designed for blade-end x blade-end connections with stud mounting, this fuse integrates into compact power panels while maintaining protection margins. In practice, selecting this device helps shorten repair cycles and stabilize system uptime, delivering predictable performance for panel builders and maintenance teams.
Product Information
Extended Description
FWA-500ASI4 Eaton: Eaton Bussmann series FWA high speed fuse, 500V, 500A, Non Indicating, High speed fuse, Blade end X blade end, Stud
Product Name
Eaton Bussmann series FWA high speed fuse
Catalog Number
FWA-500ASI4
UPC
051712292436
Product Length/Depth
3 in
Product Height
1 in
Product Width
1.5 in
Product Weight
0.388 lb
Warranty
Not Applicable
Compliances
RoHS Compliant Contact factory
Amperage Rating
500 A
Voltage rating
500 V
Packaging type
Standard
Connection
Blade end x blade end
Fuse indicator
Non Indicating
Mounting method
Stud
FWA-500ASI4~BUSS SEMICONDUCTOR FUSE
FWA-500ASI4~BUSS SEMICONDUCTOR FUSE
Eaton Specification Sheet - FWA-500ASI4
High-speed protective action: The FWA-500ASI4 is rated for 500 V and 500 A, delivering rapid current interruption to minimize damage during fault events. This reduces arc-flash energy exposure and downstream component wear, making it ideal for heavy power distribution panels and machine drives. Flexible mounting and connections: Blade-end x blade-end contacts paired with stud mounting enable installation in tight enclosures and dense cabinets, cutting assembly time and simplifying field retrofits for existing systems. RoHS compliant materials: Compliance supports regulatory procurement and reduces environmental risk, helping manufacturers meet sustainability goals without sacrificing performance. Size and handling: At 3 in length, 1 in height, and 1.5 in width with a light 0.388 lb weight, it fits standard packaging and enables straightforward replacement in retrofit projects. Non-indicating design: With no built-in indicator, you can rely on system-level protection schemes or external monitoring to minimize visual drift; this simplifies stock management for high-volume spares. Industry context and continuity: As part of the Eaton Bussmann family, this fuse aligns with proven fast-acting protection in industrial automation and power distribution applications, supporting predictable maintenance windows and improved uptime.
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FAQs
Plan for blade-end x blade-end connections with stud mounting to suit your panel layout. Confirm clearances match the 3 in length and 1.5 in width, and ensure compatible lugs or terminals are used for secure, vibration-resistant mounting. Keep spare units on hand to minimize downtime during replacements.
It is a 500 V, 500 A high-speed fuse, delivering rapid interruption during fault events to limit damage and downtime. The blade-end x blade-end design plus stud mounting offers flexible installation in compact cabinets, supporting robust protection for power distribution and motor drive circuits.
Yes, the FWA-500ASI4 is RoHS compliant, helping you meet material restrictions and regulatory requirements. For additional certifications such as CE or UL, contact Eaton to confirm current availability and documentation for your specific region and application.
Because it is non-indicating, rely on your system protection scheme or external indicators to monitor status. Maintain a stocking strategy for 500 A, 500 V fast-acting fuses with the same blade-end x blade-end and stud mounting configuration, and plan replacements during routine PM cycles to minimize unplanned downtime.
This fuse is well-suited for industrial power distribution panels, machine control circuits, and other high-current sections where fast fault interruption is critical. Industries include manufacturing, process automation, and equipment OEMs that require reliable protection with compact form factors and RoHS-compliant materials.