Bussmann 170M4362 Eaton Series High-Speed Square Body Fuse, 1000V 400A Class aR

Bussmann 170M4362 Eaton Series High-Speed Square Body Fuse, 1000V 400A Class aR

The Bussmann 170M4362 is an Eaton Bussmann series high-speed square body fuse engineered for semiconductor protection in demanding industrial power systems. Rated 1000V, 400A with a 200 kAIC interrupting rating, this Class aR fuse features a square body configuration with slotted center bolted tags for reliable, low-impedance connections. As an IEC Rated device that is CE Marked, it is suited for high-speed circuit protection applications where fast, coordinated clearing of semiconductor devices is critical to system reliability.

Key Features

• Fuse Shape: Square body design with slotted center bolted tags for secure, low-resistance mounting.
• Electrical Rating: Rated 1000V, 400A with a 200 kAIC interrupt rating for demanding fault-current environments.
• Voltage Rating: 690V rated voltage, AC voltage type, for IEC-based semiconductor protection circuits.
• Utilization Category: Class aR (accompanied semiconductor protection), designed to protect semiconductor devices in combination with other overcurrent protection.
• I2t Characteristics: Pre-arc I2t of 13500 and clearing I2t of 91500 at 660V for precise coordination with semiconductor thermal limits.
• Watt Losses: 65W power dissipation rating for accurate thermal system design.
• Compact Dimensions: Measures 210mm in length/depth, 142mm in width, and 80mm in height, weighing approximately 500g.
• Gripping Lugs: Does not include insulated metal gripping lugs (IMGL).

Certifications & Compliance

• IEC Rated
• CE Marked

Technical Specifications

• Amperage Rating: 400 A
• Application: semiconductor protection
• Certifications: IEC Rated
• Clearing I2t: 91500 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: 13500
• Product Height: 80 mm
• Product Length Depth: 210 mm
• Product Weight: 500 g
• Product Width: 142 mm
• Utilization Category: aR (accompanied semiconductor protection)
• Voltage Rating: 690 V
• Voltage Type: AC
• Watt Losses: 65 W

Typical Applications

• Semiconductor Protection
• High-Speed Fault Current Interruption
• Power Electronics and Converter Circuits
• Industrial Motor Drive and Rectifier Systems

Why Bussmann?

Bussmann by Eaton is a recognized name in circuit protection, and the 170M4362 reflects that standard with an IEC Rated, CE Marked design built for the exacting demands of semiconductor protection. With a defined 200 kAIC interrupting rating, precise pre-arc and clearing I2t values, and a robust square body construction, this fuse delivers the coordinated, code-compliant protection that power electronics and industrial systems require.