Bussmann 170E-918 High-Speed Square Body Fuse, Class aR, 1400V

Bussmann 170E-918 High-Speed Square Body Fuse, Class aR, 1400V

The Bussmann 170E-918 is an Eaton Bussmann series high-speed square body fuse engineered for Class aR (accompanied semiconductor protection) applications. Featuring a square body design with slotted, center bolted tags and a top fuse status indicator for quick visual identification of a blown fuse, this fuse carries a 1400V voltage rating and is available in 700A and 800A ratings to match a range of semiconductor protection load requirements. Built for demanding power electronics environments where fast-acting, reliable overcurrent protection is critical, this Eaton Bussmann series fuse is part of the broader Fuses product group, classified under Other Fuses for specification and cross-reference purposes. Its bolted, slotted-tag design supports secure bus bar and busway connections in high-current switchgear and drive assemblies.

Key Features

• Amp Rating Options: Available in 700A and 800A ratings, allowing selection to match a range of semiconductor protection loads.
• Square Body Construction: Square body fuse shape with slotted, center bolted tags for a secure, low-resistance bus bar mounting connection.
• Class aR Utilization Category: Designed for accompanied semiconductor protection, delivering high-speed, current-limiting performance to safeguard sensitive power semiconductor devices.
• Voltage Rating: Rated 1400V, suited to the higher-voltage demands of industrial power electronics and drive circuits.
• Top Fuse Status Indicator: Built-in top-mounted status indicator provides quick visual confirmation of fuse condition without removal from the mounting.
• Standard Packaging: Supplied in standard packaging for straightforward stocking, handling, and installation by electrical distributors and contractors.
• Bolted Tag Terminals: Center bolted, slotted tags simplify torque-controlled installation onto bus bars and fuse blocks.

Technical Specifications

• Compliances: Contact factory
• Fuse Shape: Square body, slotted center bolted tags
• Utilization Category: aR (accompanied semiconductor protection)
• Packaging Type: Standard
• Voltage Rating: 1400V

Typical Applications

• Accompanied Semiconductor Protection Circuits
• Power Electronics and Variable Frequency Drives
• High-Speed Rectifier and Converter Protection
• Industrial Motor Drive Systems
• Bus Bar-Mounted Panel and Switchgear Installations
• Renewable Energy and Power Conversion Equipment

Why Bussmann?

Eaton Bussmann series fuses are engineered for dependable, code-compliant overcurrent protection in demanding industrial and power electronics environments. The 170E-918's square body construction, bolted slotted-tag terminals, Class aR utilization category, and top fuse status indicator combine to deliver fast-acting semiconductor protection with straightforward visual monitoring and reliable bus bar mounting. Available in 700A and 800A ratings at 1400V, this fuse is built to support consistent, professional-grade protection across industrial power electronics installations. For detailed compliance documentation, contact the factory directly.