Bussmann 170M4926 High-Speed Square Body Fuse, 400A Class aR
The Bussmann 170M4926 is an Eaton Bussmann series high-speed square body fuse engineered for semiconductor protection in demanding power electronics applications. Rated 1250V (IEC) and 1300V (UL) with a 400A amperage rating and a 150 kAIC interrupting rating, this Class aR fuse provides accompanied semiconductor protection in a square body, flush end contact design suited to compact panel mounting and coordinated circuit protection schemes.
Key Features
- Voltage Rating: 1250V (IEC) and 1300V (UL) for use in high-voltage power electronic circuits.
- Amperage Rating: 400A for dependable overcurrent protection in power semiconductor applications.
- Interrupting Rating: 150 kAIC for high fault-current interrupting capability.
- Utilization Category: Class aR, accompanied semiconductor protection for coordinated circuit designs.
- Fuse Shape: Square body with flush end contacts for a compact, space-saving footprint.
- I2t Characteristics: Pre-arc I2t of 31000 and clearing I2t of 185000 at 1000V for precise semiconductor coordination.
- Watt Losses: 70W for predictable thermal performance.
- Application: Semiconductor protection.
Certifications & Compliance
- UL Recognized
- CE Marked
Technical Specifications
- Amperage Rating: 400 A
- Application: semiconductor protection
- Certifications: UL Recognized
- Clearing I2t: 185000 at 1000 V
- Compliances: CE Marked
- Fuse Shape: Square body, flush end contacts
- Insulated Metal Gripping Lugs (IMGL): No
- Packaging Type: Standard
- Pre-Arc I2t: 31000
- Product Height: 52 mm
- Product Length/Depth: 170 mm
- Product Weight: 797 g
- Product Width: 72 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 1000 V
- Voltage Type: AC
- Watt Losses: 70 W
Typical Applications
- Semiconductor Protection
- Power Electronics and Converter Circuits
- Rectifier and Inverter Protection
- Industrial Motor Drive Systems and Variable Frequency Drives
- High-Speed Overcurrent Coordination in Power Distribution Equipment
Why Bussmann?
Bussmann fuses are engineered for reliable, code-compliant performance in demanding electrical environments. The 170M4926 combines a 150 kAIC interrupting rating, square body flush end contact construction, and Class aR semiconductor protection with UL Recognized and CE Marked compliance, making it a dependable choice for professional power electronics and industrial installations that require precisely coordinated overcurrent protection.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 400 A
- Application:
- semiconductor protection
- Certifications:
- UL Recognized
- Class:
- Class aR
- Clearing I2t:
- 185000 at 1000 V
- Compliances:
- CE Marked
- Fuse Indicator:
- Other
- Fuse Shape:
- Square body, flush end contacts
- Insulated Metal Gripping Lugs Imgl:
- No
- Interrupt Rating:
- 150 kAIC
- Mounting Method:
- Flush
- Packaging Type:
- Standard
- Pre Arc I2t:
- 31000
- Product Height:
- 52 mm
- Product Length Depth:
- 170 mm
- Product Weight:
- 797 g
- Product Width:
- 72 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 1000 V
- Voltage Type:
- AC
- Watt Losses:
- 70 W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse