Bussmann 170E3950 Eaton Series High-Speed Traction Fuse, Class gR, 20A

Bussmann 170E3950 Eaton Series High-Speed Traction Fuse, Class gR

The Bussmann 170E3950 is an Eaton Bussmann series high-speed traction fuse engineered for demanding semiconductor and traction circuit protection, rated 20A at 2000V with a 100 kAIC interrupt rating. Built to the Class gR utilization category for general purpose semiconductor protection, this fuse features a top fuse status indicator for quick visual confirmation of fuse condition. The square body design with offset bolted tags supports reliable, code-compliant installation in high-speed protection applications where fast response and dependable interruption are critical to system uptime.

Key Features

• Amperage Rating: 20A rating delivers precise overcurrent protection in traction and semiconductor power circuits.
• Voltage Rating: 2000V rating supports high-voltage traction power and power electronics applications.
• Interrupt Rating: 100 kAIC interrupting capacity provides dependable fault clearing in high-energy circuits.
• Class gR Utilization Category: General purpose semiconductor protection safeguards sensitive power electronic components.
• Top Fuse Status Indicator: Built-in visual indicator allows technicians to quickly identify a blown fuse without additional test equipment.
• Fuse Shape: Square body construction with offset bolted tags for secure, code-compliant mounting.
• Watt Losses: Low 13W power loss rating supports efficient, low-heat operation.
• Compliance: RoHS compliant construction for environmentally responsible manufacturing.

Certifications & Compliance

• RoHS Compliant

Technical Specifications

• Amperage Rating: 20 A
• Certifications: Contact factory
• Compliances: RoHS Compliant
• Fuse Shape: Square body, offset bolted tags
• Fuse Size: 1*SKN/248
• Packaging Type: Standard
• Product Height: 60 mm
• Product Length Depth: 416 mm
• Product Weight: 243.8 g
• Product Width: 77 mm
• Utilization Category: gR (general purpose semiconductor protection)
• Voltage Rating: 2000 V
• Watt Losses: 13 W

Typical Applications

• Traction Power and Rail Electrification Systems
• Semiconductor and Power Electronics Protection
• High-Speed Fault Circuit Interruption
• Industrial Power Conversion and Drive Equipment
• Commercial and Industrial Electrical Installations

Why Bussmann?

Bussmann by Eaton brings decades of circuit protection engineering to the 170E3950, combining Class gR semiconductor protection performance with a 100 kAIC interrupt rating and RoHS compliant construction. The top fuse status indicator adds an extra layer of maintenance convenience for professionals managing traction and power electronics protection. Choose Bussmann for reliable, code-compliant fuse protection in demanding electrical environments.