Bussmann 170M3210 Eaton Series High-Speed Square Body Fuse, 63A, Class aR

Bussmann 170M3210 Eaton Series High-Speed Square Body Fuse

The Bussmann 170M3210 is an Eaton series high-speed square body fuse engineered for semiconductor protection in demanding industrial power circuits. Rated 700V (UL) and 690V (IEC) with a 63A amperage rating and a 200 kAIC interrupting rating, this Class aR fuse delivers dependable, coordinated overcurrent protection for critical semiconductor equipment. Built to the DIN 43 620 blade end X blade end configuration with a square body and slotted center bolted tags, it mounts into standard high-speed fuse holders, while a top-mounted fuse status indicator gives installers a quick visual check of fuse condition.

Key Features

• Voltage Rating: 700V (UL) / 690V (IEC) for compatibility across UL- and IEC-rated equipment platforms.
• Amperage Rating: 63A sized for accurate overcurrent protection of the connected semiconductor load.
• Interrupting Rating: 200 kAIC high interrupting capacity for reliable fault clearing in high-energy circuits.
• Utilization Category: Class aR (accompanied semiconductor protection), purpose-built for semiconductor device protection.
• Fuse Shape: Square body with slotted center bolted tags and blade end X blade end termination per DIN 43 620.
• Status Indicator: Top fuse status indicator for fast, at-a-glance verification of fuse condition.
• Clearing Characteristics: Pre-arc I2t of 115 and clearing I2t of 770 at 660V, with a clearing loss of 14, for predictable coordination with protected semiconductors.

Certifications & Compliance

• IEC Rated
• CE Marked

Technical Specifications

• Amperage Rating: 63 A
• Application: semiconductor protection
• Certifications: IEC Rated
• Clearing I2t: 770 at 660 V
• Clearing Loss: 14
• Compliances: CE Marked
• Fuse Shape: Square body, slotted center bolted tags
• Insulated Metal Gripping Lugs (IMGL): No
• Packaging Type: Standard
• Pre Arc I2t: 115
• Product Height: 65 mm
• Product Length/Depth: 305 mm
• Product Weight: 347 g
• Product Width: 145 mm
• Utilization Category: aR (accompanied semiconductor protection)
• Voltage Rating: 690 V
• Voltage Type: AC

Typical Applications

• Semiconductor Protection in Industrial Power Circuits
• High-Speed Fuse Holder Assemblies
• Motor Drive and Power Conversion Equipment
• Industrial and Commercial Electrical Distribution Systems

Why Bussmann?

Bussmann by Eaton engineers the 170M3210 to Class aR standards for accompanied semiconductor protection, backed by IEC-rated and CE-marked compliance. With a 200 kAIC interrupting rating and precise pre-arc and clearing I2t characteristics, this DIN 43 620 square body fuse delivers the coordinated, code-compliant performance professionals rely on for critical semiconductor circuit protection.