Eaton FWH-020A6FR High Speed Fuse - UL CSA CE Marked
Part Number: FWH-020A6FR
Quick Summary
The Eaton FWH high speed fuse protects electrical circuits in control panels and drives by delivering fast interruption. Engineers often contend with nuisance trips and downtime when protecting high‑speed loads. Certified CE Marked with UL and CSA listings, this fuse meets global safety and compliance expectations. Its compact ferrule-end design supports easy panel installation while delivering reliable protection and predictable performance. In uncertain industrial environments, predictable fuse behavior minimizes unplanned downtime and extends equipment life. With a 20 A RMS rating and 500 V ratings, it covers common motor and drive circuits. This article outlines practical benefits for panel builders, maintenance teams, and procurement professionals.
Product Information
Extended Description
FWH-020A6FR Eaton: Eaton Bussmann series FWH high speed fuse, 500 Vac, 500 Vdc, 20A RMS, 50 kAIC at 20% pf, Non Indicating, High speed fuse, Ferrule end X ferrule end
Product Name
Eaton Bussmann series FWH high speed fuse
Catalog Number
FWH-020A6FR
UPC
051712200165
Product Length/Depth
1.25 in
Product Height
0.25 in
Product Width
0.25 in
Product Weight
0.105 lb
Warranty
Not Applicable
Compliances
CE Marked
Certifications
UL CSA
Amperage Rating
20A RMS
Interrupt rating
50 kAIC at 20% pf
Voltage rating
500 Vac, 500 Vdc
Watt losses
4.26 W
Packaging type
Standard
Connection
Ferrule end x ferrule end
Fuse indicator
Non Indicating
Eaton Specification Sheet - FWH-020A6FR
Bussmann series FWH 6x32mm high speed fuse data sheet no. 720038
Datasheet - FNQ-30
Feature → Business Impact → Application: The high‑speed fuse construction enables rapid opening during short circuits, reducing damage to motors and controllers and lowering repair costs. This translates to lower downtime and improved line uptime in automation systems, especially in motor drive applications where fast protection is critical. Application: ideal for panel builders protecting drives, PLCs, and motor controllers in automated manufacturing cells. Feature → Business Impact → Application: A 20 A RMS rating with 50 kAIC interrupt capacity at 20% pf handles high fault currents without nuisance tripping, preserving wiring insulation and power supplies. Application: suitable for medium‑current protection in conveyors, packaging lines, and machine control cabinets. Feature → Business Impact → Application: 500 Vac / 500 Vdc voltage rating supports both AC and DC systems, enabling cross‑platform use in mixed automation environments. Application: used across servo drives, variable frequency drives, and control panels in mixed voltage architectures. Feature → Business Impact → Application: Ferrule end terminals and a compact 1.25 in length simplify field installation and panel installation, saving labor time. Application: ideal for retrofit projects and space‑constrained electrical enclosures. Feature → Business Impact → Application: Non‑indicating design reduces maintenance checks and potential indicator failures, lowering ongoing costs. Application: suited for sealed or hard‑to‑access panels where visual indicators are unnecessary. Feature → Business Impact → Application: CE marked, UL and CSA certifications streamline compliance and support global deployment. Application: supports international projects and cross‑border supply chains, reducing certification hurdles in new markets.
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FAQs
The FWH-020A6FR uses ferrule end terminals and is designed for standard panel fuse holders. Its compact 1.25 inch length and non‑indicating style simplify retrofits and new builds in enclosed control panels. Ensure the holder supports ferrule‑end fuses and that the rating aligns with the connected motor or drive.
It is rated for 20A RMS with a 50 kAIC interrupt capacity at 20% power factor, and voltage ratings of 500 Vac and 500 Vdc. Watt loss is specified at 4.26 W, and it carries CE marking along with UL and CSA certifications, making it suitable for global deployments.
Yes. Its high‑speed interrupt capability and 50 kAIC rating minimize damage from short circuits in motor drives and power circuits. Use it in control panels and drive assemblies where fast fault clearing is essential to protect wiring, controllers, and motors.
The fuse is CE marked and UL and CSA listed. These certifications support cross‑border manufacturing, adherence to electrical safety standards, and streamlined acceptance in multinational projects and procurement processes.
The non‑indicating design reduces maintenance checks, while its reliable high‑speed protection lowers downtime and repair costs. Compact size simplifies installation in space‑constrained panels, potentially reducing labor time and total cost of ownership over equipment life.