Bussmann 170M5563 Square Body Class aR High Speed Fuse, 700A

Bussmann 170M5563 Square Body Class aR High Speed Fuse, 700A

The Bussmann 170M5563 is a Square Body Class aR high speed fuse rated 700A RMS and built for demanding DC power protection applications. With a voltage rating of 1300 Vac (UL) and 1250 Vac (IEC) plus a 200 kAIC interrupt rating, this fuse delivers the fast-acting, high current-carrying performance required to safeguard semiconductor and DC drive systems. It is engineered for use on DC common bus configurations, DC drives, and power converters and rectifiers where reliable overcurrent protection is critical. The non-indicating, flush-mount design integrates into square body fuse holders for professional electrical installations.

Key Features

• Current Rating: 700A RMS current rating for high-power DC and semiconductor circuit protection.
• Class aR Fuse: Class aR high speed fuse construction engineered for rapid clearing in DC common bus, DC drive, and power converter/rectifier applications.
• Voltage Rating: Rated 1300 Vac (UL) and 1250 Vac (IEC) for use across both UL and IEC-governed installations.
• Interrupt Rating: High 200 kAIC interrupt rating supports safe operation under high fault-current conditions.
• I2t Performance: Pre-arc I2t of 60500 and clearing I2t of 405000 at 660V for predictable, fast current-limiting performance.
• Watt Losses: Rated at 95W for accurate thermal and enclosure design planning.
• Square Body Construction: Square body design with type K indicator style for compatibility with standard fuse blocks and holders.
• Mounting & Indicator: Flush-mount, non-indicating configuration suited for panel and enclosure installations.

Certifications & Compliance

• CE Marked
• RoHS Compliant
• IEC Rated
• UL Recognized

Technical Specifications

• Amperage Rating: 700A
• Current Rating: 700A RMS
• Voltage Rating: 1300 Vac (UL), 1250 Vac (IEC)
• Class: Class aR
• Interrupt Rating: 200 kAIC
• Pre Arc I2t: 60500
• Clearing I2t: Clearing at 660V: 405000
• Watt Losses: 95W
• Fuse Indicator: Non Indicating
• Mounting Method: Flush
• Packaging Type: Standard
• Application: DC common bus, DC drives, power converters/rectifiers
• Product Type: Square body -GKN/- type K indicator for micro

Typical Applications

• DC Common Bus Systems
• DC Drives
• Power Converters and Rectifiers
• Industrial Semiconductor Protection Circuits
• Panel and Enclosure-Mounted Fuse Blocks

Why Bussmann?

Bussmann engineers the 170M5563 to exacting Class aR standards, combining UL recognition and IEC rating with a 200 kAIC interrupt rating for dependable protection in demanding DC power environments. The square body, flush-mount construction and defined pre-arc and clearing I2t characteristics give engineers predictable, code-compliant performance for critical DC drive and power conversion circuits. Backed by CE marking and RoHS compliance, this fuse is built for professional electrical and industrial power applications.