Bussmann 170E8347 Eaton Series High-Speed Square Body Fuse, 400A Class gR

Bussmann 170E8347 Eaton Series High-Speed Square Body Fuse, Class gR

The Bussmann 170E8347 Eaton series high-speed square body fuse delivers dependable overcurrent protection for demanding DC power and traction applications. Rated 400A at 750V DC with a 100 kAIC interrupting rating, this Class gR fuse is engineered for general purpose semiconductor protection where fast clearing and high fault-current withstand are essential. The square body construction features slotted center bolted tags (Fuse Size 2) that provide a secure, low-resistance connection point for traction and industrial DC power systems, and the fuse carries a 73W watt-loss rating for predictable thermal performance in the enclosure.

Key Features

• Amperage Rating: 400A rating supports high-current DC circuit protection for demanding power distribution loads.
• Voltage Rating: 750V DC rating is suited for traction systems and DC power distribution applications.
• Interrupting Rating: 100 kAIC interrupting capacity delivers reliable protection against high fault currents.
• Fuse Shape: Square body with slotted center bolted tags (Fuse Size 2) for a secure mechanical and electrical connection.
• Utilization Category: Class gR, general purpose semiconductor protection for sensitive power electronics.
• Application: Engineered specifically for traction system protection duty.
• Watt Losses: 73W power-loss rating supports predictable thermal management.
• Compliance: RoHS Compliant construction.

Certifications & Compliance

• RoHS Compliant

Technical Specifications

• Amperage Rating: 400 A
• Application: Traction
• Certifications: Contact factory
• Compliances: RoHS Compliant
• Fuse Shape: Square body, slotted center bolted tags
• Fuse Size: 2
• Insulated Metal Gripping Lugs (IMGL): No
• Packaging Type: Standard
• Product Height: 90 mm
• Product Length/Depth: 59 mm
• Product Weight: 1300 g
• Product Width: 205 mm
• Utilization Category: gR (general purpose semiconductor protection)
• Voltage Rating: 750 V
• Voltage Type: DC
• Watt Losses: 73 W

Typical Applications

• Traction Power Systems
• DC Power Distribution Equipment
• Semiconductor Device Protection Circuits
• Rail and Transit Electrical Systems
• Industrial High-Speed Fuse Protection Panels

Why Bussmann?

Bussmann by Eaton is a trusted name in circuit protection, and the 170E8347 high-speed square body fuse reflects that standard with a 100 kAIC interrupting rating, 750V DC voltage rating, and RoHS-compliant construction. Its Class gR utilization category provides reliable, code-compliant semiconductor protection engineered for demanding traction and industrial DC power applications where fast, predictable clearing is critical to protecting sensitive downstream equipment.