Bussmann 170E-526 Eaton Series High-Speed Square Body Fuse, Class aR

Bussmann 170E-526 Eaton Series High-Speed Square Body Fuse, Class aR

The Bussmann 170E-526 is an Eaton Bussmann series high-speed square body fuse engineered for demanding power electronics and semiconductor protection applications. Rated 100A at 1000V with a 100 kAIC interrupting rating, this Class aR fuse is built to provide accompanied semiconductor protection in circuits where fast, reliable clearing under fault conditions is critical. A top-mounted status indicator lets technicians quickly verify fuse condition without pulling the unit from its mounting, simplifying inspection and maintenance in industrial control panels, drives, and power conversion equipment. As part of the broader Fuses product group, the 170E-526 is a strong fit for panel builders and OEMs standardizing on Eaton Bussmann circuit protection components.

Key Features

• Amperage Rating: 100A for dependable overcurrent protection in high-power circuits.
• Voltage Rating: 1000V, suited to demanding power electronics and drive-system applications.
• Interrupting Rating: 100 kAIC short-circuit current rating for reliable fault clearing.
• Utilization Category: Class aR (accompanied semiconductor protection) for coordinated protection of power semiconductor devices.
• Top Status Indicator: Built-in visual indicator on top of the fuse body allows fast, safe condition checks without removal.
• Square Body Construction: High-speed square body design engineered for demanding industrial duty cycles and rated for use in coordinated Eaton Bussmann semiconductor protection systems.

Technical Specifications

• Compliances: Contact factory
• Utilization Category: aR (accompanied semiconductor protection)
• Packaging Type: Standard

Typical Applications

• Power Electronics and Semiconductor Protection Circuits
• Variable Frequency Drives and Motor Control Systems
• Industrial Control Panels and Switchgear
• High-Speed Fault Clearing in Power Conversion Equipment

Why Bussmann?

Bussmann by Eaton is a recognized name in circuit protection, and the 170E-526 high-speed square body fuse reflects that engineering standard with its 100A, 1000V rating, 100 kAIC interrupting capacity, and Class aR utilization category built for accompanied semiconductor protection. The top status indicator adds a practical safety and maintenance advantage for technicians working in demanding industrial power environments. Choose Bussmann for dependable, code-compliant overcurrent protection in critical power electronics applications, and consult Eaton Bussmann documentation for full application and coordination guidance before installation.