Bussmann 170M4465 Eaton Series High-Speed Square Body Fuse, Class aR

Bussmann 170M4465 Eaton Series High-Speed Square Body Fuse, Class aR

The Bussmann 170M4465 is an Eaton series high-speed square body fuse engineered for semiconductor protection applications, rated 1300V (UL) / 1100V (IEC) with a 550A amperage rating and a 200 kAIC interrupting capacity. Classified as Utilization Category aR (accompanied semiconductor protection), it features a square body design with flush end contacts and carries a 690V voltage rating for AC voltage systems. Fast clearing characteristics help protect sensitive semiconductor devices from damaging short-circuit currents in demanding industrial power electronics applications.

Key Features

• Amperage Rating: 550A for robust current-carrying capacity in demanding circuits.
• Dual Voltage Ratings: 1300V (UL) and 1100V (IEC), plus a 690V voltage rating for AC voltage systems.
• High Interrupting Capacity: 200 kAIC rating for dependable performance under high fault-current conditions.
• Utilization Category aR: Accompanied semiconductor protection for coordinated backup fuse applications.
• Square Body, Flush End Contacts: Compact square body fuse shape with flush end contacts for secure, reliable mounting.
• Clearing/Pre-Arc I²t: Clearing I²t of 230,000 at 660V and pre-arc I²t of 34,000 for precise, fast-acting response.
• Low Watt Losses: 75W watt losses support efficient thermal performance during continuous operation.

Certifications & Compliance

• IEC Rated
• CE Marked

Technical Specifications

• Amperage Rating: 550 A
• Application: semiconductor protection
• Certifications: IEC Rated
• Clearing I²t: 230000 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: 34000
• Product Height: 51 mm
• Product Length Depth: 70 mm
• Product Weight: 788.33 g
• Product Width: 51 mm
• Utilization Category: aR (accompanied semiconductor protection)
• Voltage Rating: 690 V
• Voltage Type: AC
• Watt Losses: 75 W

Typical Applications

• Semiconductor Protection Circuits
• Power Electronics and Rectifier Protection
• High-Speed Industrial Drive Systems
• AC Power Distribution Requiring High Interrupting Capacity

Why Bussmann?

Bussmann by Eaton is a trusted name in circuit protection, and the 170M4465 reflects that standard with a 200 kAIC interrupting rating, IEC-rated and CE-marked compliance, and precise clearing and pre-arc I²t performance engineered for coordinated semiconductor protection. Choose the Bussmann 170M4465 for dependable, code-compliant overcurrent protection in demanding electrical systems.