Bussmann 170M6367 Class aR Square Body High Speed Fuse, 1400A

Bussmann 170M6367 Class aR Square Body High Speed Fuse, 1400A

The Bussmann 170M6367 is a Class aR high speed fuse built in a square body, French-style design with a type K indicator for micro switch applications. Rated 1400A RMS at 700 Vac (UL) / 690 Vac (IEC) with a 200 kAIC interrupt rating, it is engineered for DC common bus, DC drives, power converters/rectifiers, and reduced voltage starter circuits where fast semiconductor protection is critical. With a pre-arc I2t of 370000 and a clearing I2t of 2450000 at 660V, the 170M6367 delivers the current-limiting speed demanded by high-power electronics. It is CE marked and RoHS compliant, and carries UL Recognition and IEC rating for use across international electrical systems.

Key Features

• Current Rating: 1400A RMS for high-capacity circuit protection in demanding power electronics applications.
• Voltage Rating: 700 Vac (UL), 690 Vac (IEC) for use in international AC power systems.
• Interrupt Rating: 200 kAIC provides high fault-current interrupting capability.
• Class aR Design: Square body, French-style construction with a type K indicator for micro switch applications.
• Let-Through Energy: Pre-arc I2t of 370000 and clearing I2t of 2450000 at 660V for precise coordination with semiconductor devices.
• Fuse Indicator: Non-indicating design.
• Watt Losses: 155W.
• Application: Suited for DC common bus, DC drives, power converters/rectifiers, and reduced voltage starters.

Certifications & Compliance

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

Technical Specifications

• Amperage Rating: 1400A
• Application: DC common bus, DC drives, power converters/rectifiers, reduced voltage starters
• Class: Class aR
• Clearing I2t: Clearing at 660V: 2450000
• Current Rating: 1400A RMS
• Fuse Indicator: Non Indicating
• Interrupt Rating: 200 kAIC
• Packaging Type: Standard
• Pre Arc I2t: 370000
• Voltage Rating: 700 Vac (UL), 690 Vac (IEC)
• Watt Losses: 155W
• Product Type: Square body, French style -EKN/ type K indicator for micro
• Product Length: 5.433 IN
• Product Details: Square body, French style -EKN/ type K indicator for micro
• 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 fuses are engineered for demanding power electronics protection, and the 170M6367 Class aR high speed fuse combines square body, French-style construction with CE marking, RoHS compliance, IEC rating, and UL Recognition. Backed by verified current, voltage, and I2t ratings, it delivers the fast-acting, code-compliant protection professionals rely on for DC drives, converters, and rectifier systems.