Bussmann 170M-417 High-Speed Square Body Fuse, Class aR, 700V

Bussmann 170M-417 High-Speed Square Body Fuse, Class aR, 700V

The Bussmann 170M-417 is an Eaton Bussmann series high-speed square body fuse engineered for semiconductor protection in demanding power electronics and drive applications. Rated 700V (UL) and 690V (IEC) with a 100kAIC interrupt rating, this Class aR (accompanied semiconductor protection) fuse is built to safeguard sensitive semiconductor devices from short-circuit and overcurrent conditions. This family is available in 63A, 250A, and 450A ratings, and every fuse includes a top-mounted fuse status indicator for quick visual confirmation of fuse condition without removing the fuse from its mounting.

Key Features

• Amp Rating Range: Available in 63A, 250A, and 450A ratings to match a wide range of semiconductor protection requirements.
• Voltage Rating: 700V (UL) / 690V (IEC) dual-standard voltage rating for use in both UL- and IEC-governed power systems.
• Interrupt Rating: 100 kAIC interrupting capacity delivers robust protection against high fault currents.
• Utilization Category: Class aR (accompanied semiconductor protection) design suited specifically to protecting semiconductor devices such as thyristors, diodes, and other power electronic components.
• Fuse Status Indicator: Top-mounted status indicator provides an immediate visual check of fuse condition, helping maintenance staff spot a blown fuse quickly.
• Application: Purpose-built for semiconductor protection in power conversion, variable frequency drive, and industrial power electronics equipment.
• Construction: Square body, high-speed fuse design from the Eaton Bussmann series, sized 142 mm wide x 62 mm high x 245 mm deep for standard square-body mounting.

Certifications & Compliance

• 700V Voltage Rating per UL
• 690V Voltage Rating per IEC
• Additional compliance documentation available by contacting the factory

Technical Specifications

• Voltage Type: AC
• Product Width: 142 mm
• Utilization Category: aR (accompanied semiconductor protection)
• Packaging Type: Standard
• Product Height: 62 mm
• Application: semiconductor protection
• Insulated Metal Gripping Lugs Imgl: No
• Compliances: Contact factory
• Product Length Depth: 245 mm
• Voltage Rating: 1250V

Typical Applications

• Power Semiconductor and Thyristor Protection
• Variable Frequency Drives and Motor Control
• Power Conversion and Rectifier Equipment
• Industrial Power Electronics Panels
• Renewable Energy and Power Distribution Systems

Why Bussmann?

Bussmann by Eaton is a recognized name in circuit protection, and the 170M-417 series high-speed square body fuse reflects that reputation with a 100 kAIC interrupt rating, dual UL/IEC voltage ratings, and a Class aR design built specifically for semiconductor protection. The top-mounted status indicator adds a practical layer of maintainability for electricians and engineers who need fast, reliable confirmation of fuse condition in critical power electronics equipment.