Bussmann 170M2760 Eaton Series High Speed Square Body Fuse, 40A, 690V, Class aR

Bussmann 170M2760 Eaton Series High Speed Square Body Fuse, 40A, 690V, Class aR

The Bussmann 170M2760 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 40A amperage rating and a 200 kAIC interrupt rating, this Class aR fuse delivers fast-acting overcurrent protection built to the DIN 43 620 body standard. Its square body design features blade end X blade end contacts for secure, low-resistance connections in high-speed fuse holders and disconnects.

Key Features

• Amperage Rating: 40A for dependable overcurrent protection in semiconductor circuits.
• Voltage Rating: 700V (UL) / 690V (IEC) for use in high-voltage power electronics systems.
• Interrupt Rating: 200 kAIC delivers high fault-current interrupting capability.
• Utilization Category: Class aR (accompanied semiconductor protection) for coordinated protection of semiconductor devices.
• Fuse Shape: Square body with flush end contacts and blade end X blade end configuration per DIN 43 620.
• Compact Dimensions: 77 mm height x 75 mm length/depth x 163 mm width at 215.4 g, sized for standard high-speed fuse mounting.
• Watt Losses: 9W rated power loss for efficient thermal performance.

Certifications & Compliance

• IEC Rated
• CE Marked
• UL Voltage Rating: 700V
• IEC Voltage Rating: 690V

Technical Specifications

• Amperage Rating: 40 A
• Application: Semiconductor Protection
• Certifications: IEC Rated
• Clearing I2t: 360 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: 50
• Product Height: 77 mm
• Product Length/Depth: 75 mm
• Product Weight: 215.4 g
• Product Width: 163 mm
• Utilization Category: aR (Accompanied Semiconductor Protection)
• Voltage Rating: 690 V
• Voltage Type: AC
• Watt Losses: 9 W

Typical Applications

• Semiconductor Protection in Power Electronics
• Variable Frequency Drives and Motor Controllers
• High-Speed Fuse Holders and Disconnect Assemblies
• Industrial Power Conversion Equipment
• Rectifier and Inverter Circuit Protection

Why Bussmann?

Bussmann by Eaton is a recognized name in circuit protection, and the 170M2760 reflects that engineering standard with its Class aR utilization category, CE marked compliance, and IEC-rated performance. Built to the DIN 43 620 body standard with a 200 kAIC interrupt rating, this high speed square body fuse is designed to deliver dependable, code-compliant protection for demanding semiconductor and power electronics applications.