Bussmann 170M3170 Eaton Series High-Speed Square Body Fuse, Class aR, 450A

Bussmann 170M3170 Eaton Series High-Speed Square Body Fuse, Class aR, 450A, 700V

The Bussmann 170M3170 is an Eaton Bussmann series high-speed square body fuse engineered for semiconductor protection in demanding industrial power applications. Rated 700V (UL) / 690V (IEC) AC and 450A with a 200 kAIC interrupting rating, this Class aR fuse is built to DIN 43 620 standards with blade end x blade end terminations for reliable fit in high-speed fuse holders. A top-mounted fuse status indicator gives quick visual confirmation of fuse condition without removing it from the circuit.

Key Features

• Voltage Rating: 700V (UL) / 690V (IEC) AC for use in high-voltage industrial power circuits.
• Amperage Rating: 450A continuous current rating for demanding semiconductor protection duty.
• Interrupting Rating: 200 kAIC provides high short-circuit interrupting capacity for robust fault protection.
• Utilization Category: Class aR (accompanied semiconductor protection) fuse, designed to protect semiconductor devices from short-circuit currents.
• Construction: Square body design with slotted center bolted tags and blade end x blade end connections for secure, low-resistance terminations.
• Fuse Status Indicator: Top-mounted indicator allows fast visual verification of fuse condition without disconnecting the circuit.
• Dimensional Standard: Manufactured to DIN 43 620 for compatibility with standard high-speed fuse holders.
• Clearing Characteristics: Pre-arc I2t of 21000 and clearing I2t of 140000 at 660V, clearing loss of 65, for precise semiconductor protection coordination.

Certifications & Compliance

• UL Recognized
• CE Marked

Technical Specifications

• Amperage Rating: 450 A
• Application: semiconductor protection
• Certifications: UL Recognized
• Clearing I2t: 140000 at 660 V
• Clearing Loss: 65
• Compliances: CE Marked
• Fuse Shape: Square body, slotted center bolted tags
• Insulated Metal Gripping Lugs Imgl: No
• Packaging Type: Standard
• Pre Arc I2t: 21000
• Product Height: 65 mm
• Product Length Depth: 305 mm
• Product Weight: 416.6666667 g
• Product Width: 145 mm
• Utilization Category: aR (accompanied semiconductor protection)
• Voltage Rating: 690 V
• Voltage Type: AC

Typical Applications

• Semiconductor Device Protection
• Power Electronics and Converter Circuits
• Industrial High-Speed Fuse Holders and Disconnects
• Motor Drive and Rectifier Protection
• Commercial and Industrial Electrical Installations

Why Bussmann?

Bussmann by Eaton is a recognized name in circuit protection, and the 170M3170 reflects that standard with UL Recognized and CE Marked compliance, a robust 200 kAIC interrupting rating, and DIN 43 620 construction for dependable fit in standard fuse holders. Its Class aR rating and precise clearing characteristics make it a dependable choice for protecting semiconductor devices in demanding power electronics applications.