Bussmann 170M-660 Series High Speed Square Body Fuse, Class aR

Bussmann 170M-660 Series High Speed Square Body Fuse, Class aR

The Bussmann 170M-660 Series is an Eaton Bussmann series high speed square body fuse engineered for semiconductor protection, available in 500A, 550A, 630A, 700A, 1250A, and 1400A ratings to match a wide range of power electronics loads. Each fuse is rated 700V (UL) and 690V (IEC) with a 200 kAIC interrupt rating, and uses a square body construction with blade end x blade end, center bolted tag terminals for a secure high-current connection. Classified as Class aR (accompanied semiconductor protection), this series is built for AC voltage applications requiring fast-acting protection of solid-state devices.

Key Features

• Amp Rating Range: Available in 500A, 550A, 630A, 700A, 1250A, and 1400A to cover a broad range of semiconductor protection needs.
• Voltage Rating: 700V (UL) and 690V (IEC) for high-voltage circuit protection.
• Interrupt Rating: 200 kAIC high speed interrupting capacity for demanding power electronics circuits.
• Terminal Connection: Blade end x blade end, square body with center bolted tags for a firm, low-resistance connection.
• Utilization Category: Class aR, accompanied semiconductor protection for coordinated fuse protection schemes.
• Voltage Type: AC rated for alternating current power electronics applications.
• Application: Purpose-built for semiconductor protection in drives, converters, and power electronics equipment.

Certifications & Compliance

• CE Marked
• Rated to UL and IEC voltage standards (700V UL / 690V IEC)

Technical Specifications

• Voltage Type: AC
• Utilization Category: aR (accompanied semiconductor protection)
• Packaging Type: Standard
• Fuse Shape: Square body, center bolted tags
• Product Height: 76 mm
• Application: semiconductor protection
• Insulated Metal Gripping Lugs Imgl: No
• Compliances: CE Marked

Typical Applications

• Semiconductor Protection Circuits
• Power Electronics and Variable Frequency Drives
• Industrial Motor Control Systems
• High Speed Circuit Interruption Applications

Why Bussmann?

Bussmann by Eaton builds this 170M-660 series with a robust square body, center bolted tag design and a 200 kAIC interrupt rating to deliver dependable, coordinated protection for semiconductor and power electronics equipment. With CE marking and dual UL/IEC voltage ratings across a full 500A-1400A range, this series gives engineers a single trusted platform for high speed fuse protection across varied system designs.