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Bussmann 170M8632 Class aR Semiconductor Fuse, 450A, 1000V AC
The Bussmann 170M8632 is a Class aR semiconductor protection fuse rated 450A at 1000V AC, engineered for accompanied semiconductor protection (Utilization Category aR) in demanding industrial power circuits. Built with a square body and slotted, center-bolted tags, this fuse mounts to DIN 43 620 rails and delivers a 125 kAIC interrupt rating for reliable fault clearing. A top-mounted fuse status indicator gives technicians a fast visual check without powering down the circuit.
Key Features
- Amperage Rating: 450A for high-current semiconductor protection applications.
- Voltage Rating: 1000V AC for use in demanding industrial power systems.
- Interrupt Rating: 125 kAIC for dependable fault-current clearing.
- Class aR Design: Utilization Category aR (accompanied semiconductor protection) per IEC standards.
- Fuse Shape: Square body with slotted, center-bolted tags for secure, low-resistance connections.
- Mounting Method: DIN 43 620 mounting for standardized panel and enclosure installation.
- Fuse Indicator: Top fuse status indicator for quick visual verification of fuse condition.
- Clearing/Pre-Arc I2t: Pre-arc I2t of 27000 and clearing I2t of 160000 at 1000V for predictable let-through energy.
Certifications & Compliance
- IEC Rated
- CE Marked
Technical Specifications
- Amperage Rating: 450 A
- Application: semiconductor protection
- Certifications: IEC Rated
- Class: Class aR
- Clearing I2t: 160000 at 1000 V
- Compliances: CE Marked
- Fuse Indicator: Top fuse status indicator
- Fuse Shape: Square body, slotted center bolted tags
- Insulated Metal Gripping Lugs (IMGL): No
- Interrupt Rating: 125 kAIC
- Mounting Method: DIN 43 620
- Pre Arc I2t: 27000
- Product Height: 76 mm
- Product Length/Depth: 168 mm
- Product Weight: 1318 g
- Product Width: 95 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 1000 V
- Voltage Type: AC
- Watt Losses: 107 W
Typical Applications
- Semiconductor Protection in Power Electronics
- Industrial Motor Drive and Rectifier Circuits
- Panelboard and DIN-Rail Mounted Fuse Assemblies
- High-Current Industrial Power Distribution
- Renewable Energy and Power Conversion Equipment
Why Bussmann?
Bussmann fuses are engineered to precise Class aR specifications, with defined pre-arc and clearing I2t values that give engineers predictable, repeatable protection for semiconductor and power conversion equipment. The IEC-rated, CE-marked construction, 125 kAIC interrupt rating, and DIN 43 620 mounting make the 170M8632 a dependable choice for code-compliant industrial power protection.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 450 A
- Application:
- semiconductor protection
- Certifications:
- IEC Rated
- Class:
- Class aR
- Clearing I2t:
- 160000 at 1000 V
- Compliances:
- CE Marked
- Fuse Indicator:
- Top fuse status indicator
- 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:
- 27000
- Product Height:
- 76 mm
- Product Length Depth:
- 168 mm
- Product Weight:
- 1318 g
- Product Width:
- 95 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 1000 V
- Voltage Type:
- AC
- Watt Losses:
- 107 W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse