Bussmann 170M4514 Eaton Series High-Speed Square Body Fuse, Class aR, 500A

Bussmann 170M4514 Eaton Series High-Speed Square Body Fuse, Class aR, 500A

The Bussmann 170M4514 is an Eaton Bussmann series high-speed square body fuse engineered for demanding semiconductor protection applications. Rated 700V (UL) and 690V (IEC) with a 500A amperage rating and 200 kAIC interrupt rating, this Class aR fuse features a square body with flush end contacts and a top fuse status indicator for quick visual verification. Designed as an accompanied semiconductor protection fuse, it delivers precise current-limiting performance for power electronics and industrial drive circuits.

Key Features

• Voltage Rating: 700V (UL) / 690V (IEC) for high-voltage circuit protection.
• Amperage Rating: 500A for high-current semiconductor protection applications.
• Interrupt Rating: 200 kAIC high interrupting capacity for demanding fault-current conditions.
• Fuse Shape: Square body with flush end contacts for compact, space-saving installation.
• Utilization Category: Class aR (accompanied semiconductor protection), a partial-range fuse designed to protect semiconductor devices.
• Status Indicator: Top fuse status indicator for fast visual confirmation of fuse condition.
• Let-Through Characteristics: Clearing I²t of 170,000 A²s at 660V and Pre-Arc I²t of 25,000 A²s for precise coordination with upstream and downstream devices.
• Watt Losses: 72W.

Certifications & Compliance

• IEC Rated
• CE Marked

Technical Specifications

• Amperage Rating: 500 A
• Application: semiconductor protection
• Certifications: IEC Rated
• Clearing I2t: 170000 at 660 V
• Compliances: CE Marked
• Fuse Shape: Square body, flush end contacts
• Insulated Metal Gripping Lugs (IMGL): No
• Packaging Type: Standard
• Pre Arc I2t: 25000
• Product Height: 51 mm
• Product Length Depth: 54 mm
• Product Weight: 127.3333333 g
• Product Width: 160 mm
• Utilization Category: aR (accompanied semiconductor protection)
• Voltage Rating: 690 V
• Voltage Type: AC
• Watt Losses: 72 W

Typical Applications

• Semiconductor Device Protection
• Power Electronics and Variable Frequency Drives
• Industrial Motor Control Circuits
• High-Speed AC Circuit Protection
• Panelboard and Switchgear Fusing for Semiconductor Loads

Why Bussmann?

Bussmann by Eaton engineers this 170M4514 high-speed fuse with a square body, flush end contacts, and a 200 kAIC interrupt rating to deliver reliable, code-compliant protection for semiconductor devices in demanding industrial power circuits. Backed by IEC Rated and CE Marked compliance, it provides the precise Class aR current-limiting performance electrical professionals need for accompanied semiconductor protection.