Bussmann 170L-700 Series High-Speed Square Body Fuse, Class aR

Bussmann 170L-700 Series High-Speed Square Body Fuse, Class aR

The Bussmann 170L-700 Series High-Speed Square Body Fuse from Eaton Bussmann is engineered for accompanied semiconductor protection (Class aR) in demanding AC power applications. Rated 700V (UL) and 690V (IEC), this square body fuse is available in 630A and 800A ratings to match a range of load and circuit requirements, and it features a top-mounted fuse status indicator for quick visual confirmation of fuse condition. Built to the aR utilization category, it is designed to work alongside another overcurrent protective device to protect semiconductor components from short-circuit currents without interrupting normal circuit operation.

Key Features

• Amp Rating Range: Available in 630A and 800A ratings within the 170L700 series to support varying load and protection requirements.
• Dual Voltage Rating: Rated 700V (UL) and 690V (IEC) for use in both UL- and IEC-compliant electrical systems.
• Class aR Utilization Category: Provides accompanied semiconductor protection, intended for use alongside another device for full-range protection.
• High-Speed Square Body Design: Square body fuse construction delivers fast-acting response for sensitive semiconductor protection applications.
• Top Fuse Status Indicator: Integrated top-mounted indicator provides quick visual confirmation of fuse condition without removing the fuse from its mounting.
• AC Voltage Type: Engineered for AC power distribution and semiconductor protection circuits.

Certifications & Compliance

• UL Rated at 700V
• IEC Rated at 690V

Technical Specifications

• Voltage Type: AC
• Utilization Category: aR (accompanied semiconductor protection)
• Packaging Type: Standard
• Application: semiconductor protection
• Insulated Metal Gripping Lugs (Imgl): No
• Compliances: Contact factory

Typical Applications

• Semiconductor Protection Circuits
• Power Electronics and Variable Frequency Drives
• Industrial Motor Control Systems
• AC Power Distribution Requiring High-Speed Fusing

Why Bussmann?

Eaton Bussmann fuses are engineered for dependable circuit protection in demanding industrial and semiconductor applications. The 170L-700 Series combines a high-speed square body design, Class aR utilization, and a top status indicator to deliver reliable, code-compliant performance for professional electrical installations.