Bussmann 170M3192 Eaton Series High Speed Class aR Fuse, 125A

Bussmann 170M3192 Eaton Series High Speed Class aR Fuse, 125A

The Bussmann 170M3192 is an Eaton Bussmann series high speed square body fuse engineered for accompanied semiconductor protection. Rated 700V (UL) and 690V (IEC) with a 125A amperage rating and a 100 kAIC interrupting rating, this Class aR fuse is built to the DIN 43 620 standard with a square body and slotted center bolted tags for dependable mounting and termination. UL Recognized and CE Marked, it delivers fast-acting fault current interruption for demanding power electronics, drives, and industrial control applications that require coordinated semiconductor protection.

Key Features

• Amperage Rating: 125A rating supports reliable accompanied semiconductor protection.
• High Interrupting Rating: 100 kAIC interrupting rating for demanding fault-current environments.
• Dual Voltage Rating: Rated 700V (UL) and 690V (IEC) for use across both UL and IEC electrical systems.
• Class aR Utilization Category: aR (accompanied semiconductor protection) per DIN 43 620 for coordinated protection of semiconductor devices.
• Square Body Construction: Square body fuse shape with slotted center bolted tags per DIN 43 620 for straightforward mounting and termination.
• Low Watt Losses: 35W watt loss rating supports efficient thermal performance during continuous operation.
• Fast-Acting Clearing Characteristics: Pre-arc I2t of 1450 and clearing I2t of 9000 at 1000V / 11500 at 1250V for precise coordination with protected semiconductor devices.

Certifications & Compliance

• UL Recognized
• CE Marked

Technical Specifications

• Amperage Rating: 125 A
• Application: semiconductor protection
• Certifications: UL Recognized
• Clearing I2t: 9000 at 1000 V, 11500 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: 1450
• Product Height: 65 mm
• Product Length Depth: 305 mm
• Product Weight: 72 g
• Product Width: 145 mm
• Utilization Category: aR (accompanied semiconductor protection)
• Voltage Rating: 1250 V
• Voltage Type: AC
• Watt Losses: 35 W

Typical Applications

• Semiconductor Protection Circuits
• High-Speed Fault Current Interruption
• Industrial Power Electronics and Motor Drives
• OEM and Panel-Mount Installations Requiring Class aR Fuses

Why Bussmann?

Eaton Bussmann engineers the 170M3192 to the DIN 43 620 standard with a robust square body construction and slotted center bolted tags for dependable, code-aware performance in semiconductor protection applications. UL Recognized and CE Marked, this Class aR fuse pairs a 100 kAIC interrupting rating with low 35W watt losses to deliver coordinated, fast-acting protection that professionals can rely on for critical power electronics.