Bussmann 170M-314 Series High-Speed Square Body Fuse, Class aR

Bussmann 170M-314 Series High-Speed Square Body Fuse, Class aR

The Bussmann 170M-314 Series is an Eaton Bussmann high-speed square body fuse engineered for demanding semiconductor protection duty, rated 700V (UL) / 690V (IEC) with a 150 kAIC interrupting rating and Class aR utilization category (accompanied semiconductor protection). Built to the DIN 43 620 standard with a square body and slotted center bolted tags, this family is available in amp ratings from 63A through 400A (63A, 80A, 100A, 160A, 400A) to match a wide range of power electronics protection needs. A top-mounted fuse status indicator gives installers a fast visual check without powering down the circuit.

Key Features

• Amp Rating Range: Available in 63A, 80A, 100A, 160A, and 400A ratings to fit varying semiconductor protection loads.
• Voltage Rating: 700V (UL) / 690V (IEC) for use in high-voltage power electronics systems.
• Interrupting Rating: 150 kAIC delivers high fault-current interrupting capacity for demanding circuits.
• Fuse Class: Class aR, Utilization Category aR (accompanied semiconductor protection), for use alongside backup overcurrent devices.
• Fuse Shape: Square body with slotted center bolted tags, built to the DIN 43 620 standard fuse dimension.
• Status Indicator: Top fuse status indicator provides quick visual confirmation of fuse condition.
• Voltage Type: AC-rated construction for alternating current power electronics circuits.

Certifications & Compliance

• CE Marked
• UL Recognized, 700V Rating
• IEC Rated, 690V Rating
• Built to DIN 43 620 Standard Fuse Dimensions

Technical Specifications

• Voltage Type: AC
• Product Width: 145 mm
• Utilization Category: aR (accompanied semiconductor protection)
• Packaging Type: Standard
• Fuse Shape: Square body, slotted center bolted tags
• Product Height: 65 mm
• Application: semiconductor protection
• Insulated Metal Gripping Lugs Imgl: No
• Compliances: CE Marked
• Product Length Depth: 305 mm

Typical Applications

• Semiconductor Protection Circuits
• High-Speed Power Electronics Protection
• Industrial Motor Drive and Converter Systems
• Rectifier and Inverter Circuit Protection
• Commercial and Industrial Electrical Panels

Why Bussmann?

Eaton's Bussmann series fuses are engineered for demanding semiconductor protection applications, combining a rugged square body construction with a DIN 43 620 standard footprint for reliable fit in high-speed protection systems. With a 150 kAIC interrupting rating, Class aR utilization category, and a top-mounted status indicator, this series delivers dependable, code-compliant performance across its full range of amp ratings for professional electrical and industrial installations.