Bussmann High-Speed Square Body Fuse, Class aR, 350A, 800V
The Bussmann High-Speed Square Body Fuse is an Eaton Bussmann series Class aR fuse engineered for accompanied semiconductor protection in demanding AC power circuits. Featuring a square body design with center bolted tags, this fuse is rated 350A at 800V AC with a 50 kAIC interrupting rating, and includes a top-mounted fuse status indicator for quick visual verification. Purpose-built for diode protection applications, it delivers fast-acting overcurrent protection where semiconductor components require precise coordination.
Key Features
- Compact Square Body Footprint: Measures 175 mm wide x 65 mm high x 280 mm deep for predictable panel and enclosure fitment.
- Center Bolted Tags: Square body construction with center bolted tags for secure, low-resistance electrical connections.
- Class aR Utilization Category: Rated for accompanied semiconductor protection, delivering high-speed response for sensitive power electronics.
- Electrical Rating: 350A at 800V AC with a 50 kAIC interrupting rating for reliable overcurrent protection in demanding circuits.
- Top Fuse Status Indicator: Built-in top-mounted indicator provides fast visual confirmation of fuse condition without de-energizing the circuit.
- Diode Protection Application: Engineered specifically to protect diodes and semiconductor devices from damaging overcurrent conditions.
Technical Specifications
- Voltage Type: AC
- Voltage Rating: 800V
- Product Width: 175 mm
- Product Height: 65 mm
- Product Length Depth: 280 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Fuse Shape: Square body, center bolted tags
- Packaging Type: Standard
- Application: diode protection
- Insulated Metal Gripping Lugs Imgl: No
- Compliances: Contact factory
Typical Applications
- Semiconductor and Diode Protection Circuits
- Industrial Power Electronics and Rectifier Assemblies
- High-Speed Overcurrent Protection in AC Power Systems
- Panelboard and Switchgear Fuse Installations
Why Bussmann?
Bussmann by Eaton engineers its Class aR square body fuses with center bolted tags and a top status indicator to give electrical professionals fast, reliable protection for semiconductor and diode circuits. The 350A, 800V, 50 kAIC rating combination is built for accompanied semiconductor protection where high-speed response and dependable performance are essential for code-compliant, professional installations.
Manufacturer Resources
Product Specs
- Product Group:
- Fuses
- Class:
- Class aR
- Voltage Type:
- AC
- Product Width:
- 175 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Packaging Type:
- Standard
- Product Type:
- Fuse
- Interrupt Rating:
- 50 kAIC
- Fuse Shape:
- Square body, center bolted tags
- Product Height:
- 65 mm
- Product Details:
- Fuse
- Application:
- diode protection
- Insulated Metal Gripping Lugs Imgl:
- No
- Product Subgroup:
- Other Fuses
- Compliances:
- Contact factory
- Product Length Depth:
- 280 mm
- Department:
- Electrical
- Fuse Indicator:
- Top fuse status indicator
- Voltage Rating:
- 800V