Bussmann 170M4062 Eaton Series High-Speed Square Body Fuse, Class aR, 400A, 200 kAIC

Bussmann 170M4062 Eaton Series High-Speed Square Body Fuse, Class aR, 400A, 200 kAIC

The Bussmann 170M4062 is an Eaton Bussmann series high-speed square body fuse engineered for semiconductor protection, rated 1250V (IEC) / 1300V (UL) with a 400A amperage rating and a 200 kAIC interrupt rating. Built to DIN 43 620 dimensions with blade end X blade end terminations, this Class aR fuse carries a top fuse status indicator for fast visual verification and is IEC Rated with CE Marked compliance for demanding industrial power electronics applications.

Key Features

• High-Speed Class aR Protection: Utilization Category aR (accompanied semiconductor protection) delivers fast-acting, current-limiting performance for semiconductor devices.
• Voltage Rating: 1250V (IEC) / 1300V (UL), with a 690 V voltage rating for AC systems, suited to high-voltage power electronic circuits.
• Amperage Rating: 400A continuous rating paired with a 200 kAIC interrupt rating for reliable short-circuit protection.
• Fuse Construction: Square body design with slotted center bolted tags and blade end X blade end connections for secure mounting to DIN 43 620 fuse holders.
• Top Fuse Status Indicator: Integrated indicator provides fast visual confirmation of fuse condition without removal.
• Protection Characteristics: Pre-arc I2t of 13500 and clearing I2t of 91500 at 660 V, with a clearing loss of 65, for predictable let-through energy in semiconductor protection schemes.
• Compact Dimensions: Measures 245 mm in length/depth, 142 mm in width, and 62 mm in height, weighing 457 g.

Certifications & Compliance

• IEC Rated
• CE Marked

Technical Specifications

• Amperage Rating: 400 A
• Application: semiconductor protection
• Certifications: IEC Rated
• Clearing I2t: 91500 at 660 V
• Clearing Loss: 65
• Compliances: CE Marked
• Fuse Shape: Square body, slotted center bolted tags
• Insulated Metal Gripping Lugs (IMGL): No
• Packaging Type: Standard
• Pre Arc I2t: 13500
• Product Height: 62 mm
• Product Length Depth: 245 mm
• Product Weight: 457 g
• Product Width: 142 mm
• Utilization Category: aR (accompanied semiconductor protection)
• Voltage Rating: 690 V
• Voltage Type: AC

Typical Applications

• Semiconductor Device Protection
• Power Electronics and Converter Circuits
• High-Speed Fault Current Interruption
• Industrial Power Distribution Systems

Why Bussmann?

Bussmann by Eaton is a recognized name in circuit protection, and the 170M4062 reflects that standard with IEC Rated and CE Marked compliance, robust square body construction, and precise pre-arc and clearing I2t characteristics engineered specifically for semiconductor protection. For professionals specifying high-speed Class aR fuses in demanding power electronic systems, the Bussmann 170M4062 delivers dependable, code-compliant performance.