Bussmann 170M4217 Eaton Series High-Speed Square Body Fuse, Class aR, 700A/700V

Bussmann 170M4217 Eaton Series High-Speed Square Body Fuse, Class aR, 700A/700V

The Bussmann 170M4217 is an Eaton Bussmann series high-speed square body fuse engineered for demanding semiconductor protection applications. Rated 700V (UL) / 550V (IEC) with a 690V voltage rating and a 700A amperage rating, this Class aR fuse delivers a 200 kAIC interrupting rating for reliable performance in high fault-current industrial circuits. Built to the DIN 43620 square body standard with blade end x blade end connections and a top-mounted fuse status indicator, it is UL Recognized and CE Marked for use in professional power distribution equipment.

Key Features

• Voltage Rating: 700V (UL) / 550V (IEC), 690V rated, AC voltage type, for high-voltage industrial circuits.
• Amperage Rating: 700A for high-current semiconductor protection applications.
• Interrupting Rating: 200 kAIC for dependable performance under high fault-current conditions.
• Connection Style: Blade end x blade end square body construction built to the DIN 43620 standard with slotted center bolted tags.
• Fuse Status Indicator: Top-mounted indicator provides quick visual confirmation of fuse condition.
• Utilization Category: Class aR (accompanied semiconductor protection) for coordinated protection of semiconductor devices.
• Clearing Characteristics: Pre-arc I2t of 34,000 and clearing I2t of 725,000 at 660V for fast, predictable fault clearing.
• Compact Dimensions: 62 mm height x 142 mm width x 245 mm length/depth, weighing approximately 499.3 g.

Certifications & Compliance

• UL Recognized
• CE Marked

Technical Specifications

• Amperage Rating: 700 A
• Application: semiconductor protection
• Certifications: UL Recognized
• Clearing I2t: 725000 at 660 V
• Clearing Loss: 85
• Compliances: CE Marked
• Fuse Shape: Square body, slotted center bolted tags
• Insulated Metal Gripping Lugs (Imgl): No
• Packaging Type: Standard
• Pre Arc I2t: 34000
• Product Height: 62 mm
• Product Length Depth: 245 mm
• Product Weight: 499.3333333 g
• Product Width: 142 mm
• Utilization Category: aR (accompanied semiconductor protection)
• Voltage Rating: 690 V
• Voltage Type: AC

Typical Applications

• Semiconductor Protection
• High-Speed Fault-Current Interruption in Industrial Power Systems
• Motor Drive and Power Conversion Equipment
• Panelboard and Switchgear Installations

Why Bussmann?

Bussmann by Eaton is a long-trusted name in circuit protection, and the 170M4217 reflects that standard with UL Recognized and CE Marked construction built to the DIN 43620 square body format. Its Class aR utilization category and documented clearing I2t and pre-arc I2t characteristics give engineers the data needed to coordinate semiconductor protection with confidence. For professional electrical and power electronics work where fast, high-current fault clearing matters, the Bussmann 170M4217 delivers dependable, code-aware performance.