Bussmann 170M3195 Eaton Series High Speed Square Body Fuse, 250A Class aR

Bussmann 170M3195 Eaton Series High Speed Square Body Fuse, 250A Class aR

The Bussmann 170M3195 is an Eaton series high speed square body fuse engineered for demanding semiconductor protection applications. Rated 700V (UL) and 690V (IEC) with a 250A amperage rating and 100 kAIC interrupt rating, this Class aR fuse is built to the DIN 43 620 dimensional standard for square body fuses with slotted center bolted tags. UL Recognized and CE Marked, it delivers dependable high speed fault current interruption for power electronics and industrial drive circuits.

Key Features

• Amperage Rating: 250A high speed fuse element sized for demanding semiconductor protection circuits.
• Voltage Rating: 700V (UL), 690V (IEC), with a manufacturer voltage rating of 1250V (AC).
• Interrupt Rating: 100 kAIC for reliable protection against high short-circuit fault currents.
• Utilization Category: Class aR (accompanied semiconductor protection) per DIN 43 620 dimensional standard.
• Fuse Shape: Square body construction with slotted center bolted tags for secure busbar or cable connection.
• Clearing I²t: 54500 at 1000V and 73000 at 1250V; Pre-Arc I²t rated at 9200.
• Watt Losses: 55W rated power dissipation under normal operating conditions.
• Application: Purpose-built for semiconductor protection in power electronics and drive systems.

Certifications & Compliance

• UL Recognized
• CE Marked

Technical Specifications

• Amperage Rating: 250 A
• Application: Semiconductor protection
• Certifications: UL Recognized
• Clearing I²t: 54500 at 1000 V, 73000 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: 9200
• 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: 55 W

Typical Applications

• Semiconductor Protection Circuits
• Power Electronics and Rectifier Systems
• Industrial Drive and Motor Control Protection
• High Speed Short-Circuit Current Interruption
• Commercial and Industrial Electrical Installations

Why Bussmann?

Bussmann by Eaton is a trusted name in circuit protection, and the 170M3195 reflects that standard with UL Recognized and CE Marked compliance built to the DIN 43 620 dimensional standard. With a 100 kAIC interrupt rating and Class aR semiconductor protection utilization category, this fuse delivers dependable, code-compliant performance for demanding industrial and power electronics applications.