Bussmann 170M4411 Eaton Series High-Speed Square Body Fuse, Class aR, 350A
The Bussmann 170M4411 is an Eaton series high-speed square body fuse engineered for demanding semiconductor protection applications. Rated 700V (UL) and 690V (IEC) with a 350A amperage rating and a 200 kAIC interrupt rating, this Class aR fuse delivers fast-clearing performance in a compact square body with flush end contacts. A top-mounted fuse status indicator allows for quick visual verification of fuse condition, and the fuse carries UL Recognized and CE Marked compliance for use in industrial power distribution and power electronics systems.
Key Features
- Electrical Ratings: Rated 700V (UL) / 690V (IEC) with a 350A amperage rating and 200 kAIC interrupt rating for high fault-current protection.
- Utilization Category: Class aR (accompanied semiconductor protection) utilization category designed specifically to protect semiconductor devices.
- Square Body Design: Square body construction with flush end contacts for compact, space-saving busbar mounting.
- Fuse Status Indicator: Top-mounted fuse status indicator provides fast visual confirmation of fuse condition without disassembly.
- Fast-Clearing Performance: Pre-arc I2t of 8500 and clearing I2t of 59000 at 660V deliver rapid fault interruption to protect sensitive semiconductor components.
- Voltage Type: Rated for AC voltage type electrical systems.
- Low Watt Losses: 60W watt losses help minimize heat generation during continuous operation.
Certifications & Compliance
- UL Recognized
- CE Marked
Technical Specifications
- Amperage Rating: 350 A
- Application: Semiconductor Protection
- Certifications: UL Recognized
- Clearing I2t: 59000 at 660 V
- Compliances: CE Marked
- Fuse Shape: Square body, flush end contacts
- Insulated Metal Gripping Lugs (IMGL): No
- Packaging Type: Standard
- Pre-Arc I2t: 8500
- Product Height: 63 mm
- Product Length/Depth: 107 mm
- Product Weight: 416.6666667 g
- Product Width: 53 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 690 V
- Voltage Type: AC
- Watt Losses: 60 W
Typical Applications
- Semiconductor Device Protection
- Power Conversion and Rectifier Circuits
- Variable Frequency Drive (VFD) Protection
- Industrial Motor Control Systems
- High Fault-Current Industrial Power Distribution
Why Bussmann?
Bussmann by Eaton is a trusted name in circuit protection, and the 170M4411 reflects that standard with its Class aR utilization category, square body flush-contact design, and UL Recognized, CE Marked compliance. Built for high-speed semiconductor protection with a 200 kAIC interrupt rating, this fuse delivers the fast-clearing performance electrical professionals rely on for reliable, code-compliant power protection in demanding industrial environments.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 350 A
- Application:
- semiconductor protection
- Certifications:
- UL Recognized
- Class:
- Class aR
- Clearing I2t:
- 59000 at 660 V
- Compliances:
- CE Marked
- Fuse Indicator:
- Top fuse status indicator
- Fuse Shape:
- Square body, flush end contacts
- Insulated Metal Gripping Lugs Imgl:
- No
- Interrupt Rating:
- 200 kAIC
- Mounting Method:
- Flush
- Packaging Type:
- Standard
- Pre Arc I2t:
- 8500
- Product Height:
- 63 mm
- Product Length Depth:
- 107 mm
- Product Weight:
- 416.6666667 g
- Product Width:
- 53 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 690 V
- Voltage Type:
- AC
- Watt Losses:
- 60 W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse