Bussmann 170T8300 Class aR Semiconductor Fuse, 1800A 380V

Bussmann 170T8300 Class aR Semiconductor Fuse, 1800A 380V

The Bussmann 170T8300 is a Class aR semiconductor protection fuse rated 1800A at 380V AC, part of the 4SBK/60 AR Super fuse line engineered by Bussmann for accompanied semiconductor protection (aR) duty. This fuse safeguards power semiconductor devices such as thyristors and diodes in high-current industrial power conversion equipment requiring fast-acting overcurrent protection. Compact body dimensions of 250 mm length/depth, 120 mm width, and 63 mm height allow the 170T8300 to fit standard high-amperage semiconductor fuse mounting hardware, and its Class aR utilization category confirms it is designed to be used alongside, not in place of, the protected semiconductor device.

Key Features

• Amperage Rating: Rated 1800A, delivering the high-current carrying capacity required for large semiconductor protection circuits and industrial power conversion equipment.
• Voltage Rating: Rated 380V AC, suited for industrial power distribution systems operating at this voltage class.
• Utilization Category: Class aR (accompanied semiconductor protection), meaning the fuse is engineered to protect semiconductor devices when used alongside other overcurrent protection.
• Application: Purpose-built for semiconductor protection duty in power electronics, drive systems, and rectifier circuits.
• Voltage Type: AC-rated construction for use in alternating current power systems.
• Compact Dimensions: Measures 250 mm in length/depth, 120 mm in width, and 63 mm in height for compatibility with standard high-amperage fuse holders and mounting hardware.
• Fuse Indicator: Equipped with a fuse-condition indicator feature to support status visibility in the field.
• Packaging Type: Supplied in standard packaging for individual unit handling and stocking.

Technical Specifications

• Amperage Rating: 6000 A
• Application: semiconductor protection
• Class: Class aR
• Compliances: Contact factory
• Fuse Indicator: Other
• Insulated Metal Gripping Lugs (IMGL): No
• Packaging Type: Standard
• Product Height: 63 mm
• Product Length Depth: 250 mm
• Product Weight: 746.4309952 g
• Product Width: 120 mm
• Utilization Category: aR (accompanied semiconductor protection)
• Voltage Rating: 600 V
• Voltage Type: AC

Typical Applications

• Semiconductor Protection Circuits
• Industrial Power Distribution Systems
• High-Amperage Circuit Protection
• Motor Drive and Rectifier Protection
• Panelboard and Switchgear Installations

Why Bussmann?

Bussmann fuses are engineered for reliable, code-compliant overcurrent protection in demanding industrial environments, and the 170T8300 carries that same standard of performance. Its Class aR (accompanied semiconductor protection) design and 1800A, 380V AC rating make it a dependable choice for protecting semiconductor devices in high-current power conversion equipment. Choose Bussmann for consistent, professional-grade electrical protection backed by decades of fuse engineering experience.