Bussmann 170M4409 High Speed Square Body Fuse, Class aR, 250A/700V
The Bussmann 170M4409 is an Eaton Bussmann series high speed square body fuse rated 700V (UL) / 690V (IEC) at 250A, built to Class aR utilization for accompanied semiconductor protection. With a 200 kAIC interrupt rating and a top-mounted fuse status indicator, this square body, flush end contact fuse delivers fast, current-limiting protection for demanding power electronics circuits. Clearing I2t of 21000 at 660V and Pre-Arc I2t of 3100 support precise coordination in high-speed protection schemes.
Key Features
- Amperage Rating: 250A for high-capacity circuit protection.
- Voltage Rating: 700V (UL), 690V (IEC) for use in high-voltage AC power systems.
- Interrupt Rating: 200 kAIC for dependable protection against high fault currents.
- Utilization Category: Class aR, engineered for accompanied semiconductor protection.
- Fuse Shape: Square body construction with flush end contacts for compact, space-saving installation.
- Fuse Status Indicator: Top-mounted indicator provides quick visual confirmation of fuse condition.
- Current-Limiting Data: Clearing I2t of 21000 at 660V and Pre-Arc I2t of 3100 for precise coordination.
- Watt Losses: 55W.
Certifications & Compliance
- IEC Rated
- CE Marked
Technical Specifications
- Amperage Rating: 250 A
- Application: semiconductor protection
- Certifications: IEC Rated
- Clearing I2t: 21000 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: 3100
- Product Height: 54 mm
- Product Length Depth: 58 mm
- Product Weight: 381 g
- Product Width: 170 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 690 V
- Voltage Type: AC
- Watt Losses: 55 W
Typical Applications
- Semiconductor Protection Circuits
- High-Speed Power Electronics Protection
- Class aR Accompanied Fuse Coordination
- Industrial Rectifier and Converter Protection
Why Bussmann 170M4409?
The Bussmann 170M4409 combines a 200 kAIC interrupt rating, Class aR utilization, and a top fuse status indicator in a compact square body, flush end contact design. Backed by IEC rating and CE marking, this Eaton Bussmann series high speed fuse is built for reliable, code-compliant performance in semiconductor protection applications.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 250 A
- Application:
- semiconductor protection
- Certifications:
- IEC Rated
- Class:
- Class aR
- Clearing I2t:
- 21000 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:
- 3100
- Product Height:
- 54 mm
- Product Length Depth:
- 58 mm
- Product Weight:
- 381 g
- Product Width:
- 170 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 690 V
- Voltage Type:
- AC
- Watt Losses:
- 55 W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse