Bussmann 170M6358 Eaton Series High-Speed Square Body Fuse, Class aR, 500A

Bussmann 170M6358 Eaton Series High-Speed Square Body Fuse, Class aR, 500A

The Bussmann 170M6358 is an Eaton Bussmann series high-speed square body fuse engineered for semiconductor protection in demanding power electronics applications. Rated 700V (UL) and 690V (IEC) with a 500A amperage rating and a 200 kAIC interrupt rating, this Class aR fuse is designed for accompanied semiconductor protection where coordination with other overcurrent devices is required. The square body design features slotted center bolted tags for secure, low-resistance connections in high-current circuits.

Key Features

• Amperage Rating: 500A for reliable protection in high-current semiconductor and power conversion circuits.
• Voltage Rating: 700V (UL) / 690V (IEC), AC voltage type, suited for demanding industrial power electronics equipment.
• Interrupt Rating: 200 kAIC high interrupting capacity for safe, reliable fault clearing in high-energy circuits.
• Fuse Shape: Square body with slotted center bolted tags for a secure, low-resistance busbar-style mounting connection.
• Utilization Category: Class aR (accompanied semiconductor protection), a partial-range fuse intended to be coordinated with additional overcurrent protection devices.
• Let-Through Energy: Pre-Arc I2t of 14000 and Clearing I2t of 95000 at 660V for precise energy coordination with the protected semiconductors.
• Watt Losses: 95W rated power dissipation under normal operating conditions.

Certifications & Compliance

• IEC Rated
• CE Marked

Technical Specifications

• Amperage Rating: 500 A
• Application: semiconductor protection
• Certifications: IEC Rated
• Clearing I2t: 95000 at 660 V
• Compliances: CE Marked
• Fuse Shape: Square body, slotted center bolted tags
• Insulated Metal Gripping Lugs (IMGL): No
• Packaging Type: Standard
• Pre Arc I2t: 14000
• Product Height: 123 mm
• Product Length/Depth: 78 mm
• Product Weight: 746.4309952 g
• Product Width: 155 mm
• Utilization Category: aR (accompanied semiconductor protection)
• Voltage Rating: 690 V
• Voltage Type: AC
• Watt Losses: 95 W

Typical Applications

• Semiconductor Protection Circuits
• Variable Frequency Drives and Motor Controls
• Rectifier and Power Conversion Equipment
• Industrial Power Electronics and Power Supplies
• High-Power Switching Applications

Why Bussmann?

Bussmann by Eaton engineers high-speed fuses to precise let-through energy characteristics, giving the 170M6358 the coordinated protection that sensitive semiconductor circuits require. With a 200 kAIC interrupt rating, IEC rating, and CE marking, this Class aR square body fuse delivers dependable, code-compliant overcurrent protection for professional industrial power electronics installations.