Bussmann 170E9187 High-Speed Square Body Fuse, 630A, Class aR

Bussmann 170E9187 High-Speed Square Body Fuse, 630A, Class aR

The Bussmann 170E9187 is an Eaton Bussmann series high-speed square body fuse engineered for demanding power electronics protection. Rated 630A at 1400V, this Class aR fuse is built for accompanied semiconductor protection and includes a top fuse status indicator for quick visual confirmation of fuse condition. The square body design with slotted center bolted tags supports secure, low-resistance bus bar connections in high-current switchgear and drive applications.

Key Features

• Amperage Rating: 630A for high-capacity semiconductor circuit protection.
• Voltage Rating: 1400V rating supports demanding power electronics and drive systems.
• Square Body Construction: Square body fuse shape with slotted center bolted tags for secure, low-resistance bus bar mounting.
• High-Speed Operation: Eaton Bussmann series high-speed design responds quickly to protect sensitive semiconductor devices.
• Class aR Utilization Category: Class aR (accompanied semiconductor protection) for coordinated protection alongside other overcurrent devices.
• Top Fuse Status Indicator: Built-in top indicator provides a quick visual check of fuse condition without disconnecting equipment.

Technical Specifications

• Amperage Rating: 630 A
• Voltage Rating: 1400 V
• Utilization Category: aR (accompanied semiconductor protection)
• Fuse Shape: Square body, slotted center bolted tags
• Compliances: Contact factory
• Packaging Type: Standard
• Product Height: 75 mm
• Product Length Depth: 166 mm
• Product Width: 94 mm
• Product Weight: 132.2 g

Typical Applications

• Power Electronics and Semiconductor Protection
• Motor Drive and Rectifier Circuit Protection
• Industrial Power Distribution Equipment
• High-Speed Switchgear and Panel Protection
• Coordinated Overcurrent Protection Schemes

Why Bussmann?

Bussmann by Eaton is a recognized name in circuit protection, and the 170E9187 high-speed square body fuse reflects that standard with its Class aR semiconductor protection rating, robust square body bolted-tag construction, and convenient top fuse status indicator. For electrical professionals specifying protection for power electronics, drives, and other semiconductor-based equipment, this Eaton Bussmann series fuse delivers the coordinated, high-speed response that demanding industrial applications require.