Bussmann 170M3954 Class aR High Speed Fuse, 100A/700V, 150kAIC

Bussmann 170M3954 Class aR High Speed Fuse, 100A/700V, 150kAIC

The Bussmann 170M3954 is a Class aR high speed fuse engineered for demanding power electronics protection, rated 100A RMS at 700 Vac (UL) / 690 Vac (IEC) with a 150 kAIC interrupt rating. This square body, flush end contact fuse is built for DC common bus systems, DC drives, power converters/rectifiers, and reduced voltage starters where fast semiconductor protection is critical. Recognized to UL and rated to IEC standards, this Bussmann fuse delivers dependable current-limiting performance for professional industrial power systems.

Key Features

• Current Rating: 100A RMS for reliable protection in high-power circuits.
• Voltage Rating: 700 Vac (UL), 690 Vac (IEC) for use in demanding AC power distribution systems.
• Interrupt Rating: 150 kAIC delivers high fault-current interrupting capability.
• Class aR Design: Purpose-built current-limiting construction for semiconductor and power electronics protection.
• Fuse Indicator: Non Indicating construction.
• Watt Losses: Rated at 35W.
• Mounting Method: Flush, square body design with flush end contacts for compact panel mounting.
• Application: Suited for DC common bus, DC drives, power converters/rectifiers, and reduced voltage starters.

Certifications & Compliance

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

Technical Specifications

• Amperage Rating: 100A
• Application: DC common bus, DC drives, power converters/rectifiers, reduced voltage starters
• Class: Class aR
• Clearing I2t: Clearing at 1000V: 5100
• Current Rating: 100A RMS
• Fuse Indicator: Non Indicating
• Interrupt Rating: 150 kAIC
• Packaging Type: Standard
• Pre Arc I2t: 860
• Voltage Rating: 700 Vac (UL), 690 Vac (IEC)
• Watt Losses: 35W
• Product Type: Square body flush end contact, -BKN/- type K indicator for micro
• Product Length: 5.433 IN
• Product Details: Square body flush end contact, -BKN/- 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
• Industrial Power Electronics Protection

Why Bussmann?

Bussmann engineers the 170M3954 Class aR fuse for the demanding protection needs of DC common bus systems, DC drives, power converters/rectifiers, and reduced voltage starters, backed by a 150 kAIC interrupt rating and UL recognition alongside IEC rating. With RoHS compliance and CE marking, this fuse supports reliable, code-compliant performance for professional industrial electrical work.