Bussmann 170M3244 Eaton Series High-Speed Square Body Fuse, 200A Class aR

Bussmann 170M3244 Eaton Series High-Speed Square Body Fuse, 200A Class aR

The Bussmann 170M3244 Eaton series high-speed square body fuse delivers precision overcurrent protection for demanding semiconductor circuits, rated 700V (UL) and 690V (IEC) with a 200A amperage rating and a 100 kAIC interrupting rating. Built to the DIN 43 620 standard and classified Utilization Category aR (accompanied semiconductor protection), this fuse is engineered specifically for semiconductor protection applications where fast clearing and tight let-through coordination are critical. The square body design features slotted, center-bolted tags for a secure, low-resistance connection, and the fuse carries UL Recognized and CE Marked compliance for professional electrical and industrial power systems.

Key Features

• Voltage Rating: Rated 700V (UL) and 690V (IEC) for high-voltage semiconductor protection circuits.
• Amperage Rating: 200A continuous current rating sized for demanding power electronics applications.
• Interrupting Rating: 100 kAIC interrupting rating provides robust short-circuit protection.
• Utilization Category: Class aR (accompanied semiconductor protection) per DIN 43 620 for coordinated semiconductor protection schemes.
• Square Body Construction: Square body fuse with slotted, center-bolted tags measuring 305 mm (L) x 145 mm (W) x 65 mm (H).
• Let-Through Performance: Pre-arc I2t of 5150 and clearing I2t of 31000 at 1000V / 41000 at 1250V for precise circuit coordination.
• Watt Loss: Rated at 45W for accurate thermal system design.
• Compact Weight: Weighs 73 g for streamlined enclosure and panel layouts.

Certifications & Compliance

• UL Recognized
• CE Marked

Technical Specifications

• Amperage Rating: 200 A
• Application: semiconductor protection
• Certifications: UL Recognized
• 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: 73 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
• Power Semiconductor and Rectifier Circuits
• High-Speed Overcurrent Protection
• Industrial Power Electronics Systems

Why Bussmann?

The Bussmann 170M3244 Eaton series fuse combines a UL Recognized, CE Marked design with Class aR utilization and DIN 43 620 construction, giving engineers a dependable, code-compliant option for semiconductor protection. With a 100 kAIC interrupting rating and documented pre-arc and clearing I2t values, this Bussmann fuse supports precise circuit coordination for critical industrial power electronics systems.