Bussmann 170M4568 Eaton Series High-Speed Square Body Fuse, 800A, Class aR
The Bussmann 170M4568 is an Eaton Bussmann series high-speed square body fuse engineered for demanding power electronics and semiconductor protection applications. Rated 700V (UL) / 690V (IEC) AC at 800A with a 200 kAIC interrupt rating, this Class aR fuse features a square body design with flush end contacts for reliable busbar mounting. Its high-speed clearing characteristics make it well suited for accompanied semiconductor protection where fast, coordinated fault clearing is critical.
Key Features
- Amperage Rating: 800A for high-capacity circuit protection in industrial power systems.
- Voltage Rating: 700V (UL) / 690V (IEC) AC for demanding industrial and commercial power distribution.
- Interrupt Rating: 200 kAIC for reliable performance in high fault-current environments.
- Fuse Shape: Square body with flush end contacts for compact, space-efficient busbar mounting.
- Utilization Category: Class aR (accompanied semiconductor protection) for protecting power semiconductors against overcurrent.
- Clearing Characteristics: Clearing I2t of 725,000 A²s at 660V and Pre-Arc I2t of 105,000 A²s for coordinated protection.
- Watt Losses: 95W.
- Compact Dimensions: 170mm length x 72mm width x 52mm height, approximately 397.3g weight.
Certifications & Compliance
- IEC Rated
- CE Marked
Technical Specifications
- Amperage Rating: 800 A
- Application: semiconductor protection
- Certifications: IEC Rated
- Clearing I2t: 725000 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: 105000
- Product Height: 52 mm
- Product Length/Depth: 170 mm
- Product Weight: 397.3333333 g
- Product Width: 72 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 690 V
- Voltage Type: AC
- Watt Losses: 95 W
Typical Applications
- Semiconductor Protection
- Power Electronics and Variable Frequency Drive Systems
- Industrial and Commercial Power Distribution
- High Fault-Current Circuit Protection
Why Bussmann?
Bussmann by Eaton engineers the 170M4568 as a CE Marked, IEC Rated high-speed fuse built for the coordinated clearing performance that semiconductor and power electronics protection demands. With a defined Class aR utilization category, 200 kAIC interrupt rating, and documented Pre-Arc and Clearing I2t values, this fuse supports code-compliant, reliable protection for professional industrial electrical systems.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 800 A
- Application:
- semiconductor protection
- Certifications:
- IEC Rated
- Class:
- Class aR
- Clearing I2t:
- 725000 at 660 V
- Compliances:
- CE Marked
- Fuse Indicator:
- Other
- 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:
- 105000
- Product Height:
- 52 mm
- Product Length Depth:
- 170 mm
- Product Weight:
- 397.3333333 g
- Product Width:
- 72 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 690 V
- Voltage Type:
- AC
- Watt Losses:
- 95 W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse