Eaton Bussmann FWH-3A14F 3A 500V AC Class aR 14x51mm High-Speed Fuse
● Check availabilityFWH-3A14F: 3A; 500V AC; Class aR; High-Speed (aR); 200kA AC.
Rated Current3A
Rated Voltage500V AC
Breaking Capacity200kA AC
Package14 × 51 mm
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Part NumberFWH-3A14FBrandEaton BussmannRequested Qty
Eaton Bussmann FWH-3A14F is a 14x51mm high-speed fuse rated 3A at 500V AC. Interrupting rating: 200kA AC. Typical applications: DC common bus, DC drives, Power converters/rectifiers, Reduced-voltage starters. Source: Bussmann Full Line Catalog 1007 (2018), page 4-25.
Quick answer, specifications & FAQ
Direct answer
Eaton Bussmann High-Speed Semiconductor Fuse FWH-3A14F is rated 3A, 500V AC, High Speed, 14 × 51 mm. Breaking capacity 200kA AC, certifications UL Recognized|CSA by rating|CE. Listed applications: DC Bus Protection, Motor Drives, Motor Starters, Power conversion. FWH-3A14F: 3A; 500V AC; Class aR; High-Speed (aR); 200kA AC.
Key specifications
- Part number: FWH-3A14F
- Brand: Eaton Bussmann
- Rated current: 3A
- Rated voltage: 500V AC
- Breaking capacity: 200kA AC
- Fuse speed: High Speed
- Package size: 14 × 51 mm
- Terminal type: Ferrule
- Certifications: UL Recognized|CSA by rating|CE
- Typical lead time: 12-16 weeks
- Source: Bussmann Full Line Catalog 1007 (2018), page 4-25.; Watts loss at rated current: 2.8 W
Frequently asked questions
What are the current and voltage ratings of FWH-3A14F?
FWH-3A14F is rated 3A at 500V AC.
What is the breaking capacity of FWH-3A14F?
FWH-3A14F has a breaking capacity of 200kA AC. Confirm this covers the available fault current at the installation point.
What package size does FWH-3A14F use?
FWH-3A14F uses 14 × 51 mm package size.
Which standards and approvals apply to FWH-3A14F?
FWH-3A14F is listed under UL Recognized|CSA by rating|CE.
What is FWH-3A14F used for?
FWH-3A14F is listed for DC Bus Protection, Motor Drives, Motor Starters, Power conversion applications. Verify suitability for your circuit before ordering.
What are the ordering terms for FWH-3A14F?
FWH-3A14F: typical lead time 12-16 weeks. Submit a quote request for a firm quotation.
Data sources
- Part number
- FWH-3A14F
- Brand
- Eaton Bussmann
- Last updated
- 2026-09-22
- Canonical URL
- https://fusestock.com/products/eaton-bussmann-fwh-3a14f-3a-500v-ac-class-ar-14x51mm-high-speed-fuse/
Technical Specifications
- Part Number
- FWH-3A14F
- Manufacturer Part Number
- FWH-3A14F
- Series
- FWH Series (14x51mm aR High-Speed Fuse)
- Fuse Type
- High-Speed Semiconductor Fuse
- Current Rating
- 3A
- Voltage Rating
- 500V AC
- AC / DC
- AC
- Breaking Capacity
- 200kA AC
- Package / Dimensions
- 14 × 51 mm
- Mounting
- Ferrule / Clip
- Application
- DC Bus Protection · Motor Drives · Motor Starters · Power conversion
- Terminal Type
- Ferrule
- Fuse Speed
- High Speed
- Utilization Class
- aR
- Approvals
- CE · CSA by rating · UL Recognized
- Certifications
- UL Recognized|CSA by rating|CE
- Reference Lead Time
- 12-16 weeks
- Source
- Bussmann Full Line Catalog 1007 (2018), page 4-25.; Watts loss at rated current: 2.8 W
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