Bussmann 170M6651 Class aR Square Body High-Speed Fuse, 1400A

Bussmann 170M6651 Class aR Square Body High-Speed Fuse, 1400A

The Bussmann 170M6651 is a Class aR square body high-speed fuse rated 1400A RMS, engineered for demanding semiconductor protection in DC common bus systems, DC drives, power converters/rectifiers, and reduced voltage starters. It carries a dual voltage rating of 700 Vac (UL) and 690 Vac (IEC), backed by a 100 kAIC interrupt rating for reliable fault clearing in high-energy circuits. The fuse is UL Recognized and IEC Rated, with CE marking and RoHS compliance confirming it meets international electrical safety and environmental standards. Its non-indicating square body design mounts flush for space-efficient panel integration.

Key Features

• Current Rating: 1400A RMS for high-capacity circuit protection in industrial power systems.
• Fuse Class: Class aR design suited for semiconductor protection in DC drives and power converters.
• Voltage Rating: 700 Vac (UL), 690 Vac (IEC) for compatibility with both UL and IEC electrical standards.
• Interrupt Rating: 100 kAIC for dependable performance under high fault-current conditions.
• Fuse Indicator: Non-Indicating, square body construction with -GKN/90 type K indicator provision for micro switches.
• Mounting Method: Flush mounting for compact panel installations.
• Watt Losses: 150W rated power dissipation.

Certifications & Compliance

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

Technical Specifications

• Amperage Rating: 1400A
• Application: DC common bus, DC drives, power converters/rectifiers, reduced voltage starters
• Class: Class aR
• Clearing I2t: Clearing at 1000V: 120000, Clearing at 1250V: 160000
• Current Rating: 1400A RMS
• Fuse Indicator: Non Indicating
• Interrupt Rating: 100 kAIC
• Packaging Type: Standard
• Pre Arc I2t: 1250000 It (A2 Sec)
• Voltage Rating: 700 Vac (UL), 690 Vac (IEC)
• Watt Losses: 150W
• Product Type: Square body, -GKN/90 type K indicator for micro
• Product Length: 5.433 IN
• Product Details: Square body, -GKN/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 Systems
• DC Drives
• Power Converters and Rectifiers
• Reduced Voltage Starters

Why Bussmann?

Bussmann fuses are engineered for dependable, code-compliant performance in critical industrial power applications. The 170M6651's Class aR construction, 100 kAIC interrupt rating, and dual UL/IEC recognition make it a trusted choice for protecting DC drives, power converters, and reduced voltage starters where reliable overcurrent protection is essential. RoHS compliance and CE marking further support use across global electrical systems.