Bussmann 170M1865 Class aR High-Speed Fuse, 315A, 1000V

Bussmann 170M1865 Class aR High-Speed Fuse, 315A, 1000V

The Bussmann 170M1865 is a Class aR high-speed fuse engineered for demanding overcurrent protection applications, rated 315A at 1000V. Built with a copper (CU) fuse element, this fuse carries a voltage rating of 700V per UL and 690V per IEC standards, giving installers flexibility across both U.S. and international system designs. As a non-indicating fuse, it is designed for straightforward in-line protection without a visual blown-fuse indicator. Bussmann's Class aR construction is purpose-built for the fast-acting response that semiconductor and power electronic circuits require, and the 315A/1000V rating makes this fuse well suited to demanding industrial power circuits where dependable, code-aware overcurrent protection is critical to keeping equipment and personnel safe.

Key Features

• Amperage Rating: 315A rating delivers dependable overcurrent protection for high-capacity circuits.
• Voltage Rating: Rated 1000V, with a 700V UL rating and 690V IEC rating for flexible system compatibility.
• Fuse Class: Class aR high-speed fuse construction suited to semiconductor and power electronics protection.
• Fuse Element: Copper (CU) element construction supports consistent, repeatable fuse performance.
• Fuse Indicator: Non-indicating design for standard in-line protection without a blown-fuse indicator window.
• Packaging: Standard packaging type.

Technical Specifications

• Amperage Rating: 315 A
• Class: Class aR
• Compliances: Contact factory
• Fuse Indicator: Non Indicating
• Packaging Type: Standard
• Voltage Rating: 700 V (UL), 690 V (IEC)

Typical Applications

• Semiconductor and Power Electronics Protection
• Motor Drive and Variable Frequency Drive (VFD) Circuits
• Industrial Power Conversion Equipment
• Panelboard and Switchgear Overcurrent Protection
• Commercial and Industrial Electrical Systems

Why Bussmann?

Bussmann fuses are engineered with rated construction like the copper element and Class aR high-speed response found in the 170M1865, giving electrical professionals dependable overcurrent protection for critical circuits. With clearly defined 700V UL and 690V IEC voltage ratings alongside a rugged 315A capacity, this fuse is built for consistent, code-aware performance in demanding industrial and commercial power systems. For compliance documentation on this fuse, contact the factory directly. Choose Bussmann for overcurrent protection you can specify with confidence.