Bussmann 170M3258 Eaton Series High Speed Square Body Fuse, Class aR, 700V/690V, 40A

Bussmann 170M3258 Eaton Series High Speed Square Body Fuse, Class aR, 700V/690V, 40A

The Bussmann 170M3258 is an Eaton series high speed square body fuse engineered for semiconductor protection, rated 700V (UL) / 690V (IEC) AC at 40A with a 200 kAIC interrupt rating. Built to Class aR (accompanied semiconductor protection) Utilization Category and DIN 43 620 dimensional standards, this fuse features a square body with slotted center bolted tags and blade end x blade end connections for reliable, low-impedance mounting. IEC rated and CE marked, it delivers the fast-acting clearing performance that semiconductor and power electronics circuits demand.

Key Features

• Voltage Rating: Dual rated 700V (UL) and 690V (IEC), AC voltage type, for high-voltage semiconductor circuit protection.
• Amperage Rating: 40A continuous rating sized for demanding power electronics applications.
• Interrupt Rating: 200 kAIC interrupting capacity for high fault-current environments.
• Utilization Category: Class aR (accompanied semiconductor protection) for coordinated semiconductor device protection.
• Fuse Shape: Square body with slotted center bolted tags and blade end x blade end connections for a secure, low-resistance fit.
• Dimensional Standard: Built to DIN 43 620 dimensions, measuring 305 mm (length/depth) x 145 mm (width) x 65 mm (height) and weighing 346 g.
• Protection Characteristics: Pre-arc I2t of 40 and clearing I2t of 270 at 660V for precise coordination in semiconductor protection schemes, with a clearing loss of 9.

Certifications & Compliance

• IEC Rated
• CE Marked

Technical Specifications

• Amperage Rating: 40 A
• Application: semiconductor protection
• Certifications: IEC Rated
• Clearing I2t: 270 at 660 V
• Clearing Loss: 9
• Compliances: CE Marked
• Fuse Shape: Square body, slotted center bolted tags
• Insulated Metal Gripping Lugs (IMGL): No
• Packaging Type: Standard
• Pre Arc I2t: 40
• Product Height: 65 mm
• Product Length/Depth: 305 mm
• Product Weight: 346 g
• Product Width: 145 mm
• Utilization Category: aR (accompanied semiconductor protection)
• Voltage Rating: 690 V
• Voltage Type: AC

Typical Applications

• Semiconductor Protection Circuits
• Power Electronics and Converter Systems
• Industrial Motor Drive Protection
• High Fault-Current Electrical Systems
• Rectifier and Inverter Circuit Protection

Why Bussmann?

Bussmann by Eaton engineers this high speed square body fuse to DIN 43 620 dimensional standards with a 200 kAIC interrupt rating, delivering the fast, precise clearing characteristics that semiconductor protection demands. IEC rated and CE marked, the 170M3258 provides dependable, code-compliant protection for demanding industrial power electronics installations.