Bussmann 170M7489 Class aR Semiconductor Fuse, 4500A 400V
The Bussmann 170M7489 is a Class aR semiconductor protection fuse rated 4500A at 400V, engineered to safeguard power semiconductors such as SCRs and diodes from damaging overcurrent conditions. Classified under Utilization Category aR (accompanied semiconductor protection), this fuse is purpose-built for demanding industrial power electronics where fast, reliable current-limiting protection is critical. It is rated for AC voltage systems and ships in standard packaging for straightforward stocking.
Key Features
- High-Capacity Rating: Rated 4500A at 400V for demanding power circuit protection duties.
- Class aR Semiconductor Protection: Utilization Category aR (accompanied semiconductor protection) helps safeguard SCRs, diodes, and other power semiconductors from overcurrent damage.
- AC Voltage Type: Rated for AC voltage systems.
- Semiconductor Application: Purpose-built for semiconductor protection applications in industrial power electronics.
- Standard Packaging: Ships in a standard packaging configuration for straightforward stocking and handling.
Technical Specifications
- Amperage Rating: 2100 A
- Application: semiconductor protection
- Class: Class aR
- Compliances: Contact factory
- Fuse Indicator: Other
- Insulated Metal Gripping Lugs (Imgl): No
- Packaging Type: Standard
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 1500 V
- Voltage Type: AC
Typical Applications
- Power Semiconductor Protection (SCRs, Diodes, Thyristors)
- Industrial Power Conversion Equipment
- Motor Drive and Rectifier Circuits
- High-Capacity Industrial Power Distribution
- Power Electronics and Renewable Energy Systems
Why Bussmann?
Bussmann fuses are engineered to deliver dependable overcurrent protection for demanding industrial applications, and the 170M7489 continues that standard with its Class aR semiconductor protection design. Built for AC voltage systems and rated for high-capacity circuits, this fuse helps protect sensitive power semiconductor components from damaging fault currents. Choose Bussmann for consistent, application-specific fuse protection backed by proven engineering.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 2100 A
- Application:
- semiconductor protection
- Class:
- Class aR
- Compliances:
- Contact factory
- Fuse Indicator:
- Other
- Insulated Metal Gripping Lugs Imgl:
- No
- Packaging Type:
- Standard
- Product Height:
- 116 mm
- Product Length Depth:
- 202 mm
- Product Weight:
- 746.4309952 g
- Product Width:
- 140 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 1500 V
- Voltage Type:
- AC
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse