Bussmann 170M5595 Class aR High Speed Fuse, 550A, 700V

Bussmann 170M5595 Class aR High Speed Fuse, 550A, 700V

The Bussmann 170M5595 is a Class aR high speed fuse built in a square body design, rated 550A RMS with a voltage rating of 700 Vac (UL) and 690 Vac (IEC), plus a 100 kAIC interrupt rating for demanding fault-current protection. Engineered for DC common bus, DC drive, power converter/rectifier, and reduced voltage starter applications, this non-indicating, flush-mounting fuse carries UL Recognized and IEC Rated listings along with CE marking and RoHS compliance for professional commercial and industrial power systems.

Key Features

• Amperage Rating: 550A RMS for high-current DC circuit protection.
• Class aR Construction: Square body, high speed fuse design (-BKN/90 type K indicator for micro) suited for semiconductor and power conversion protection.
• Voltage Rating: 700 Vac (UL), 690 Vac (IEC) for DC drives, common bus, and rectifier circuits.
• Interrupt Rating: 100 kAIC for reliable performance under high fault-current conditions.
• Fuse Indicator: Non-Indicating design.
• I2t Ratings: Pre-arc I2t of 69,500; clearing I2t of 370,000 at 1000V and 495,000 at 1250V for coordinated circuit protection.
• Watt Losses: 100W.
• Mounting: Flush-mounting square body fuse construction.

Certifications & Compliance

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

Technical Specifications

• Amperage Rating: 550A
• Application: DC common bus, DC drives, power converters/rectifiers, reduced voltage starters
• Class: Class aR
• Clearing I2t: Clearing at 1000V: 370000, Clearing at 1250V: 495000
• Current Rating: 550A RMS
• Fuse Indicator: Non Indicating
• Interrupt Rating: 100 kAIC
• Packaging Type: Standard
• Pre Arc I2t: 69500
• Voltage Rating: 700 Vac (UL), 690 Vac (IEC)
• Watt Losses: 100W
• Product Type: Square body, -BKN/90 type K indicator for micro
• Product Length: 5.433 IN
• Product Details: Square body, -BKN/90 type K indicator for micro
• Mounting Method: Flush
• Product Height: 2.087 IN
• Product Weight: 1.6456 LB
• Product Width: .315 IN

Typical Applications

• DC Common Bus Protection
• DC Drive Systems
• Power Converters and Rectifiers
• Reduced Voltage Starters

Why Bussmann?

Bussmann engineers the 170M5595 as a Class aR square body high speed fuse with a 100 kAIC interrupt rating, UL Recognized and IEC Rated listings, and CE marking with RoHS compliance, delivering dependable, code-compliant overcurrent protection for demanding DC power conversion and drive applications. The flush-mounting square body construction and defined pre-arc and clearing I2t characteristics support coordinated protection in professional industrial electrical systems.