Bussmann 170M3067 High Speed Square Body Fuse, 315A, Class aR

Bussmann 170M3067 High Speed Square Body Fuse, 315A, Class aR

The Bussmann 170M3067 is an Eaton Bussmann series high speed square body fuse engineered for semiconductor protection in demanding power electronics applications. Rated 1250V (IEC) / 1300V (UL) with a 315A amperage rating and a 200 kAIC interrupt rating, this Class aR fuse features a blade end X blade end connection built to DIN 43 620 dimensions. A top fuse status indicator gives installers a fast visual check on fuse condition without removing the unit from service.

Key Features

• Amperage Rating: 315A for high-current semiconductor protection circuits.
• Voltage Rating: 1250V (IEC), 1300V (UL), with a 690V system voltage rating for global application flexibility.
• Interrupt Rating: 200 kAIC for reliable clearing under high fault-current conditions.
• Utilization Category: Class aR (accompanied semiconductor protection), suited for protecting semiconductor devices in coordinated circuits.
• Fuse Shape & Connection: Square body with slotted center bolted tags, blade end X blade end configuration per DIN 43 620.
• Status Indicator: Top fuse status indicator for quick visual confirmation of fuse condition.
• Let-Through Characteristics: Pre-arc I2t of 7000 and clearing I2t of 46500 at 660V for predictable coordination with protected semiconductor devices.

Certifications & Compliance

• IEC Rated
• CE Marked

Technical Specifications

• Amperage Rating: 315 A
• Application: semiconductor protection
• Certifications: IEC Rated
• Clearing I2t: 46500 at 660 V
• Clearing Loss: 50
• Compliances: CE Marked
• Fuse Shape: Square body, slotted center bolted tags
• Insulated Metal Gripping Lugs (IMGL): No
• Packaging Type: Standard
• Pre Arc I2t: 7000
• Product Height: 65 mm
• Product Length Depth: 305 mm
• Product Weight: 310 g
• Product Width: 145 mm
• Utilization Category: aR (accompanied semiconductor protection)
• Voltage Rating: 690 V
• Voltage Type: AC

Typical Applications

• Semiconductor Device Protection
• Power Electronics and Drive Systems
• Rectifier and Converter Circuits
• High-Speed Industrial Power Protection
• Commercial and Industrial Electrical Installations

Why Bussmann?

Bussmann series fuses from Eaton are built to precise DIN 43 620 dimensional standards with a square body, bolted-tag construction for secure, code-compliant terminations. With a 200 kAIC interrupt rating, Class aR utilization category, IEC-rated and CE-marked construction, the 170M3067 delivers dependable, coordinated protection for semiconductor devices in professional electrical and power electronics installations.