Bussmann FWC Series High-Speed Cylindrical Fuse, 500V Ferrule End

Bussmann FWC Series High-Speed Cylindrical Fuse, 500V Ferrule End

The Bussmann FWC Series is a line of Eaton Bussmann high-speed cylindrical fuses purpose-built for fast, reliable interruption in demanding power electronics and semiconductor protection circuits. Available in amperage ratings from 12A through 25A (models FWC-12A10F, FWC-20A10F, and FWC-25A10F), the series is rated 500V with an interrupting capacity of 200 kAIC Vac and 50 kAIC at 700 Vdc, making it well suited for protecting sensitive semiconductor devices such as SCRs, diodes, and thyristors from short-circuit and overcurrent events. Every fuse in the series shares a non-indicating design with ferrule end x ferrule end termination for straightforward installation into compatible cylindrical fuse holders, blocks, and disconnect assemblies used throughout industrial power conversion equipment.

Key Features

• Amperage Range: Available from 12A to 25A across the FWC-12A10F, FWC-20A10F, and FWC-25A10F models for precise, application-matched overcurrent protection.
• Voltage Rating: 500V rating shared across the series for use in medium-voltage power electronics and semiconductor protection circuits.
• Interrupting Rating: 200 kAIC Vac and 50 kAIC at 700 Vdc interrupting capacity for dependable fault clearing in high-energy circuits.
• High-Speed Operation: Fast-acting cylindrical fuse design engineered for rapid response to protect sensitive semiconductor components such as SCRs, diodes, and thyristors.
• Termination: Ferrule end x ferrule end configuration for compatibility with standard cylindrical fuse holders and blocks.
• Cylindrical Fuse Body: Compact cylindrical form factor designed for space-saving installation in fuse holders and power electronics enclosures.
• Non-Indicating Design: Standard non-indicating construction for straightforward, cost-effective circuit protection.
• FWC Series: Part of the Eaton Bussmann FWC series of high-speed semiconductor protection fuses.

Technical Specifications

• Series: FWC
• Product Details: High Speed Fuse
• Product Weight: 8.8 grams (per fuse)

Typical Applications

• Power Semiconductor Protection (SCRs, Diodes, Thyristors)
• Variable Frequency Drives and Motor Drive Circuits
• Rectifier and Power Conversion Equipment
• Industrial Power Electronics Systems
• High-Speed Overcurrent Protection Applications

Why Bussmann?

Bussmann is a trusted name in circuit protection, and the FWC series high-speed cylindrical fuse line reflects Eaton Bussmann engineering standards for demanding semiconductor and power electronics applications. With a shared 500V rating and an interrupting capacity of 200 kAIC Vac and 50 kAIC at 700 Vdc across the 12A-25A range, these fuses are built to deliver dependable, high-speed protection for critical circuits where standard fuses cannot respond quickly enough. The non-indicating, ferrule end x ferrule end construction keeps installation simple while maintaining the precise, code-compliant performance professionals expect from the Eaton Bussmann brand in industrial and commercial power electronics environments.