Bussmann 170M5361 High-Speed aR Fuse-Link, 550A, 690V AC, Size 2

Bussmann 170M5361 High-Speed aR Fuse-Link, 550A, 690V AC, Size 2

The Bussmann 170M5361 is a high-speed aR fuse-link engineered for semiconductor protection in demanding industrial power circuits. Rated 550 A at AC 690 V, this Size 2 fuse-link measures 61 x 77 x 126 mm and is UL Recognized and CE marked, built to IEC standards. Featuring a square body with slotted center bolted tags and a single indicator, it delivers a 200 kAIC interrupt rating for dependable overcurrent protection of sensitive semiconductor devices.

Key Features

• Current & Voltage Rating: 550 A at AC 690 V for high-capacity semiconductor circuit protection.
• Size 2 Body: Compact 61 x 77 x 126 mm dimensions fit standard Size 2 fuse mounting hardware.
• High-Speed aR Class: Utilization category aR (accompanied semiconductor protection) for fast clearing of fault currents.
• Interrupt Rating: 200 kAIC interrupting capacity supports use in high fault-current environments.
• Fuse Shape: Square body with slotted center bolted tags for a secure, low-resistance connection.
• Single Indicator: Built-in single indicator allows quick visual confirmation of fuse status.
• Energy Let-Through: Pre-arc I2t of 28,000 and clearing I2t of 300,000 at 660 V for predictable fault clearing performance.

Certifications & Compliance

• UL Recognized
• CE Marked
• IEC Standard

Technical Specifications

• Application: Semiconductor protection
• Certifications: UL Recognized
• Class: Class aR
• Clearing I2t: 300000 at 660 V
• Compliances: CE Marked
• Fuse Indicator: Other
• Fuse Shape: Square body, slotted center bolted tags
• Insulated Metal Gripping Lugs (IMGL): No
• Interrupt Rating: 200 kAIC
• Packaging Type: Standard
• Pre Arc I2t: 28000
• Product Weight: 610 g
• Utilization Category: aR (accompanied semiconductor protection)
• Voltage Type: AC
• Watt Losses: 80 W

Typical Applications

• Semiconductor Device Protection
• Power Electronics and Variable Frequency Drive Systems
• Industrial Motor Control Circuits
• High Fault-Current Power Distribution Systems

Why Bussmann?

Bussmann engineers its 170M series high-speed fuse-links with aR utilization for demanding semiconductor protection, backed by UL Recognition and CE marking to IEC standards. The 200 kAIC interrupt rating along with defined pre-arc and clearing I2t characteristics support predictable, code-compliant protection coordination in industrial power systems. Choose Bussmann for dependable, professional-grade overcurrent protection engineered for critical electrical applications.