Bussmann 170M8623 High Speed Square Body Fuse, 900A, 1000V, Class aR
The Bussmann 170M8623 is an Eaton Bussmann series high speed square body fuse engineered for demanding power semiconductor protection duty. Rated 900A at 1000V AC with a 125 kAIC interrupt rating, this Class aR fuse is built to DIN 43 620 dimensional standards and is intended for accompanied semiconductor protection applications where fast, precise clearing is critical. Its square body design with slotted, center-bolted tags supports reliable bus-bar style mounting in power conversion and industrial drive equipment.
Key Features
- Amperage Rating: 900A for high-current semiconductor protection.
- Voltage Rating: 1000V AC for use in high-voltage power conversion circuits.
- Interrupt Rating: 125 kAIC for reliable performance under high fault-current conditions.
- Utilization Category: Class aR (accompanied semiconductor protection) for fast-acting clearing of semiconductor devices.
- Fuse Shape: Square body with slotted, center-bolted tags for secure bus-bar mounting.
- Design Standard: Built to DIN 43 620 for standardized fit and mounting compatibility.
- Clearing I2t: 150000 at 1000V for predictable current-limiting performance.
- Pre-Arc I2t: 250000 supporting coordinated protection schemes.
- Watt Losses: 145 W at rated current.
Certifications & Compliance
- IEC Rated
- CE Marked
Technical Specifications
- Amperage Rating: 900 A
- Application: semiconductor protection
- Certifications: IEC Rated
- Clearing I2t : 150000 at 1000 V
- Compliances: CE Marked
- Fuse Shape: Square body, slotted center bolted tags
- Insulated Metal Gripping Lugs Imgl : No
- Packaging Type: Standard
- Pre Arc I2t : 250000
- Product Height: 76 mm
- Product Length Depth: 168 mm
- Product Weight: 1305 g
- Product Width: 95 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 1000 V
- Voltage Type: AC
- Watt Losses: 145 W
Typical Applications
- Semiconductor Protection in Power Conversion Equipment
- Variable Frequency Drives and Industrial Motor Drives
- Power Electronic Converters and Rectifiers
- Coordinated High-Speed Circuit Protection Schemes
- Industrial and Commercial Power Distribution Systems
Why Bussmann?
Bussmann by Eaton engineers high speed fuses to precise DIN 43 620 dimensional standards, with documented clearing and pre-arc I2t values that support accurate protection coordination for sensitive semiconductor devices. Backed by IEC rating and CE marking, this square body fuse delivers the dependable, code-compliant performance professionals expect for critical power conversion protection.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 900 A
- Application:
- semiconductor protection
- Certifications:
- IEC Rated
- Class:
- Class aR
- Clearing I2t:
- 150000 at 1000 V
- Compliances:
- CE Marked
- Fuse Indicator:
- Other
- Fuse Shape:
- Square body, slotted center bolted tags
- Insulated Metal Gripping Lugs Imgl:
- No
- Interrupt Rating:
- 125 kAIC
- Mounting Method:
- DIN 43 620
- Packaging Type:
- Standard
- Pre Arc I2t:
- 250000
- Product Height:
- 76 mm
- Product Length Depth:
- 168 mm
- Product Weight:
- 1305 g
- Product Width:
- 95 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 1000 V
- Voltage Type:
- AC
- Watt Losses:
- 145 W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse