Bussmann 170M3144 Eaton Series High Speed Square Body Fuse, Class aR

Bussmann 170M3144 Eaton Series High Speed Square Body Fuse, Class aR

The Bussmann 170M3144 is an Eaton series high speed square body fuse built to Class aR specifications for semiconductor protection in demanding industrial power circuits. Rated 700V (UL) and 690V (IEC) with a 200A amperage rating and a 100 kAIC interrupt rating, this DIN 43 620 dimensioned fuse features a top-mounted fuse status indicator for fast visual confirmation of fuse condition. Its square body design with slotted, center bolted tags is engineered for reliable, high-speed clearing in accompanied semiconductor protection applications.

Key Features

• Amperage Rating: 200A for robust semiconductor circuit protection.
• Voltage Rating: 700V (UL), 690V (IEC), with a published fuse voltage rating of 1250 V AC.
• Interrupt Rating: 100 kAIC for dependable performance under high fault currents.
• Class & Standard: Class aR utilization category (accompanied semiconductor protection) built to DIN 43 620 square body dimensions.
• Fuse Shape: Square body with slotted, center bolted tags for secure mounting and connection.
• Status Indicator: Top fuse status indicator provides quick, at-a-glance verification of fuse condition.
• I²t Ratings: Pre-arc I²t of 5150; clearing I²t of 31000 at 1000 V and 41000 at 1250 V.
• Watt Losses: 45 W rated power dissipation.

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: 425 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 Electronics and Variable Frequency Drive Circuits
• Industrial Motor Control and Power Conversion Systems
• High Fault Current Interrupting Applications
• Panelboard and Switchgear Protection

Why Bussmann?

Bussmann by Eaton engineers this Class aR high speed fuse to the DIN 43 620 square body standard, combining a 100 kAIC interrupt rating with precise pre-arc and clearing I²t characteristics for accompanied semiconductor protection. The top-mounted status indicator, IEC rated and CE marked construction, and slotted center bolted tag design deliver the consistent, code-compliant performance professionals expect for critical semiconductor and power electronics circuits.