Bussmann 170E7533 High-Speed Square Body Fuse, Class aR, 250A

Bussmann 170E7533 High-Speed Square Body Fuse, Class aR, 250A

The Bussmann 170E7533 is an Eaton Bussmann series high-speed square body fuse engineered for demanding power electronics and semiconductor protection applications. Rated 250A with a 3600V voltage rating and a 100 kAIC interrupt rating, this Class aR fuse delivers fast-acting protection sized for accompanied semiconductor devices in industrial power circuits. A top fuse status indicator provides quick visual confirmation of fuse condition, while the square body design with slotted center bolted tags ensures a secure, low-resistance connection for demanding industrial installations.

Key Features

• Amperage Rating: 250A rated fuse for high-capacity circuit protection in industrial power systems.
• Voltage Rating: 3600V rating supports use in high-voltage power electronics and semiconductor protection circuits.
• Interrupt Rating: 100 kAIC interrupt capacity for reliable performance under high fault-current conditions.
• Class aR Utilization: Accompanied semiconductor protection utilization category designed to safeguard sensitive power electronic components.
• Square Body Construction: Square body fuse shape with slotted center bolted tags for a secure, low-resistance mounting connection.
• Top Fuse Status Indicator: Built-in indicator allows fast visual verification of fuse condition without removal from the mounting.
• High-Speed Design: Fast-acting, high-speed fuse construction suited to protecting semiconductor devices in power conversion equipment.

Technical Specifications

• Amperage Rating: 250 A
• Voltage Rating: 3600 V
• Utilization Category: aR (accompanied semiconductor protection)
• Fuse Shape: Square body, slotted center bolted tags
• Compliances: Contact factory
• Packaging Type: Standard
• Product Height: 90 mm
• Product Length Depth: 76 mm
• Product Width: 362 mm
• Product Weight: 760 g

Typical Applications

• Power Electronics and Semiconductor Protection
• Variable Frequency Drives (VFDs) and Motor Controls
• Rectifier and Power Converter Circuit Protection
• Industrial Power Distribution Panels
• Commercial and Industrial Electrical Installations

Why Bussmann?

Bussmann by Eaton builds this high-speed square body fuse with a 100 kAIC interrupt rating and Class aR utilization category to deliver dependable protection for semiconductor devices and power electronics in demanding industrial environments. The top fuse status indicator and slotted center bolted tag design support fast inspection and secure installation, helping electrical professionals maintain reliable, code-compliant protection on critical power circuits.