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Bussmann 170L9866 Eaton Series High-Speed Square Body Fuse, 500A Class aR
The Bussmann 170L9866 is an Eaton Bussmann series high-speed square body fuse engineered for semiconductor protection, rated 500A and 1600V AC in utilization category Class aR (accompanied semiconductor protection). Built with a square body design and flush end contacts, this fuse protects sensitive semiconductor devices in demanding industrial power circuits. Its high-speed construction delivers the rapid current-limiting response required for aR-class accompanied semiconductor fuse applications, where it is intended to work alongside a backup overcurrent device rather than provide stand-alone full-range protection.
Key Features
- Amperage Rating: 500A for high-current semiconductor protection circuits.
- Voltage Rating: 1600V AC for high-voltage industrial power systems.
- Utilization Category: Class aR (accompanied semiconductor protection) for use alongside a backup overcurrent device in a full-range protection scheme.
- Fuse Shape: Square body with flush end contacts for a compact, standardized mounting footprint.
- Application: Purpose-built for semiconductor protection in power electronics and industrial equipment.
- Insulated Metal Gripping Lugs (IMGL): Not equipped on this configuration.
- Packaging Type: Standard packaging.
Technical Specifications
- Amperage Rating: 500 A
- Voltage Rating: 1600 V
- Voltage Type: AC
- Utilization Category: aR (accompanied semiconductor protection)
- Fuse Shape: Square body, flush end contacts
- Application: Semiconductor protection
- Insulated Metal Gripping Lugs (IMGL): No
- Packaging Type: Standard
- Compliances: Contact factory
Typical Applications
- Semiconductor Device Protection
- Power Electronics and Rectifier Circuits
- Industrial Motor Drives and Drive Systems
- High-Speed Fault Current Interruption
- Class aR Accompanied Protection Schemes
Why Bussmann?
Eaton's Bussmann series brings proven circuit protection expertise to demanding semiconductor applications, engineering this fuse as a high-speed, Class aR square body fuse built for reliable, code-compliant performance. With its rated 500A, 1600V AC construction and flush end contacts for secure mounting, this fuse delivers the fast-acting response semiconductor devices require in professional electrical installations.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 500 A
- Application:
- semiconductor protection
- Class:
- Class aR
- Compliances:
- Contact factory
- Fuse Indicator:
- Other
- Fuse Shape:
- Square body, flush end contacts
- Insulated Metal Gripping Lugs Imgl:
- No
- Packaging Type:
- Standard
- Product Height:
- 76 mm
- Product Length Depth:
- 168 mm
- Product Weight:
- 2.325 g
- Product Width:
- 95 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 1600 V
- Voltage Type:
- AC
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse