Bussmann 170M6120 Eaton Series High-Speed Square Body Fuse, 1800A Class aR, 200 kAIC

Bussmann 170M6120 Eaton Series High-Speed Square Body Fuse, 1800A Class aR, 200 kAIC

The Bussmann 170M6120 is an Eaton Bussmann series high-speed square body fuse engineered for semiconductor protection applications. Rated 1800A with a dual voltage rating of 700V (UL) and 690V (IEC), this Class aR fuse delivers a 200 kAIC interrupting rating and is built to the DIN 43 620 dimensional standard with blade end X blade end termination. Its square body construction with slotted, center-bolted tags supports direct busbar mounting in demanding power electronics circuits.

Key Features

• High-Speed Square Body Construction: Square body fuse shape with slotted, center-bolted tags for secure blade end X blade end connection to busbar.
• Electrical Rating: 1800A rated at 700V (UL) / 690V (IEC) with a 200 kAIC interrupting rating for demanding fault-current conditions.
• Utilization Category: Class aR (accompanied semiconductor protection) rated per the DIN 43 620 standard.
• Clearing Characteristics: Pre-arc I²t of 880,000 and clearing I²t of 5,250,000 at 660V for precise coordination with semiconductor devices.
• Clearing Loss: Rated clearing loss of 165 for accurate thermal coordination in the protected circuit.
• Gripping Lug Configuration: Standard bolted tag design; not equipped with Insulated Metal Gripping Lugs (IMGL).
• Compact Dimensions: 76 mm height, 168 mm length/depth, and 95 mm width at 924 g weight for straightforward panel integration.
• Packaging: Standard packaging type for individual unit handling.

Certifications & Compliance

• UL Recognized
• CE Marked

Technical Specifications

• Amperage Rating: 1800 A
• Application: semiconductor protection
• Certifications: UL Recognized
• Clearing I²t: 5250000 at 660 V
• Clearing Loss: 165
• Compliances: CE Marked
• Fuse Shape: Square body, slotted center bolted tags
• Insulated Metal Gripping Lugs (IMGL): No
• Packaging Type: Standard
• Pre Arc I²t: 880000
• Product Height: 76 mm
• Product Length Depth: 168 mm
• Product Weight: 924 g
• Product Width: 95 mm
• Utilization Category: aR (accompanied semiconductor protection)
• Voltage Rating: 600 V
• Voltage Type: AC

Typical Applications

• Semiconductor Protection Circuits
• Power Electronics and Converter Protection
• Industrial Drive and Rectifier Systems
• High Fault-Current Interruption in Power Distribution

Why Bussmann?

Bussmann series fuses from Eaton are UL Recognized and CE Marked, built to the DIN 43 620 dimensional standard for reliable fit and performance in semiconductor protection circuits. With a 200 kAIC interrupting rating, documented pre-arc and clearing I²t values, and a rugged square body, blade-end construction, the 170M6120 delivers the coordinated, code-compliant fast-acting protection professionals expect for demanding power electronics installations.