Bussmann 170M4110 Eaton Series High Speed Square Body Fuse, Class aR, 315A

Bussmann 170M4110 Eaton Series High Speed Square Body Fuse, Class aR, 315A

The Bussmann 170M4110 is an Eaton Bussmann series high speed square body fuse engineered for semiconductor protection in demanding industrial power electronics applications. Rated 315A with a dual voltage rating of 700V (UL) and 690V (IEC), this Class aR fuse delivers a 200 kAIC interrupting rating for reliable fault-current clearing in AC systems. Built to the DIN 43 620 dimensional standard with a square body, slotted center bolted tag design and blade end x blade end terminations, the 170M4110 is designed to help protect semiconductor devices from short-circuit and overcurrent conditions in coordinated circuit protection schemes.

Key Features

• Amperage Rating: 315A rated for high speed clearing in semiconductor protection circuits.
• Dual Voltage Rating: 700V (UL) and 690V (IEC), AC voltage type, for use across UL and IEC-governed systems.
• Interrupting Rating: 200 kAIC provides robust short-circuit current interruption capability.
• Utilization Category: Class aR (accompanied semiconductor protection) for coordinated protection of semiconductor devices.
• Fuse Shape: Square body with slotted center bolted tags and blade end x blade end terminations for secure, low-resistance connections.
• Construction Standard: Built to the DIN 43 620 dimensional standard for consistent fit and mounting compatibility.
• Let-Through Characteristics: Pre-arc I2t of 6200 and clearing I2t of 42000 at 660V, with a clearing loss of 58, supporting precise coordination with protected semiconductor devices.

Certifications & Compliance

• UL Recognized
• CE Marked

Technical Specifications

• Amperage Rating: 315 A
• Application: semiconductor protection
• Certifications: UL Recognized
• Clearing I2t: 42000 at 660 V
• Clearing Loss: 58
• Compliances: CE Marked
• Fuse Shape: Square body, slotted center bolted tags
• Insulated Metal Gripping Lugs (IMGL): No
• Packaging Type: Standard
• Pre Arc I2t: 6200
• Product Height: 66 mm
• Product Length Depth: 55 mm
• Product Weight: 505 g
• Product Width: 108 mm
• Utilization Category: aR (accompanied semiconductor protection)
• Voltage Rating: 690 V
• Voltage Type: AC

Typical Applications

• Semiconductor Device Protection (SCRs, Diodes)
• Power Electronics and Variable Frequency Drives
• Industrial Motor Control and Rectifier Circuits
• High Speed Fault-Current Clearing Applications
• Panelboard and Switchgear Protection

Why Bussmann?

The Bussmann 170M4110 reflects Eaton Bussmann engineering standards, combining DIN 43 620 compliant square body construction with UL Recognized and CE Marked compliance for dependable performance. Its Class aR utilization category and 200 kAIC interrupting rating make it a dependable choice for protecting semiconductor devices in industrial and power electronics environments where high speed clearing is critical.