Bussmann 170M3194 Eaton Series High-Speed Square Body Fuse, Class aR, 200A

Bussmann Eaton Series High-Speed Square Body Fuse, Class aR

The Bussmann Eaton series high-speed square body fuse delivers fast-acting overcurrent protection engineered for demanding power electronics circuits. Rated 700V (UL) and 690V (IEC) with a 200A amperage rating and a 100 kAIC interrupt rating, this Class aR fuse is built to DIN 43 620 dimensions for semiconductor protection duty. The square body design uses slotted, center-bolted tags for a secure, low-resistance connection in high-speed fusing systems, and the fuse carries a 1250V component voltage rating for demanding circuit designs.

Key Features

• Voltage Rating: 700V (UL) and 690V (IEC), with a 1250V component voltage rating for demanding power circuits.
• Amperage Rating: 200A for high-current semiconductor protection circuits.
• Interrupt Rating: 100 kAIC for reliable fault clearing under high-energy fault conditions.
• Utilization Category: Class aR (accompanied semiconductor protection) for coordinated protection schemes.
• Fuse Shape: Square body with slotted, center-bolted tags built to DIN 43 620 for secure mounting.
• Clearing I2t: 31,000 at 1000V and 41,000 at 1250V for predictable let-through energy.
• Pre-Arc I2t: 5,150 for coordinated upstream and downstream protection.
• Watt Losses: 45W at rated current.

Certifications & Compliance

• IEC Rated
• CE Marked

Technical Specifications

• Amperage Rating: 200 A
• Application: semiconductor protection
• Certifications: IEC Rated
• Clearing I2t: 31000 at 1000 V, 41000 at 1250 V
• Compliances: CE Marked
• Fuse Shape: Square body, slotted center bolted tags
• Insulated Metal Gripping Lugs (IMGL): No
• Packaging Type: Standard
• Pre-Arc I2t: 5150
• 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: 1250 V
• Voltage Type: AC
• Watt Losses: 45 W

Typical Applications

• Semiconductor Protection Circuits
• Power Electronics and Rectifier Systems
• High-Speed Fusing for Motor Drives and Converters
• Industrial Control Panels
• UL- and IEC-Rated Electrical Systems

Why Bussmann?

Bussmann by Eaton engineers this high-speed fuse to exacting DIN 43 620 dimensional standards, with CE marking and IEC ratings that support both UL (700V) and IEC (690V) system voltages. The square body, center-bolted tag design, 100 kAIC interrupt rating, and documented pre-arc and clearing I2t characteristics give panel builders and OEMs the data needed for accurate protection coordination in semiconductor and power electronics applications.