Bussmann 170M8617 Square Body High Speed Fuse, Class aR, 450A
The Bussmann 170M8617 is a Class aR high speed fuse built in a square body configuration for protecting semiconductor equipment in demanding power applications. Rated 450A RMS with a 125 kAIC interrupt rating, this fuse is engineered for DC common bus systems, DC drives, power converters/rectifiers, and reduced voltage starters. It is UL Recognized and IEC Rated, with RoHS compliance and CE marking supporting global specification.
Key Features
- Amperage Rating: 450A RMS current rating delivers reliable overcurrent protection in high-power DC circuits.
- Fast-Acting Protection: Class aR high speed fuse design provides rapid clearing to safeguard sensitive semiconductor components.
- Interrupt Rating: 125 kAIC interrupt rating supports use in high fault-current power systems.
- Square Body Construction: Compact square body form factor simplifies installation in standard fuse blocks.
- Mounting: DIN 43 620 blade-style mounting for secure, standardized connection.
- Clearing Characteristics: Pre-arc I2t of 27000 and clearing I2t of 160000 at 1000V for predictable current-limiting performance.
- Watt Losses: 107W watt loss rating for efficient thermal performance.
Certifications & Compliance
- UL Recognized
- IEC Rated
- RoHS Compliant
- CE Marked
Technical Specifications
- Amperage Rating: 450A
- Application: DC common bus, DC drives, power converters/rectifiers, reduced voltage starters
- Class: Class aR
- Clearing I2t: Clearing at 1000V: 160000
- Current Rating: 450A RMS
- Fuse Indicator: Non Indicating
- Interrupt Rating: 125 kAIC
- Packaging Type: Standard
- Pre Arc I2t: 27000
- Watt Losses: 107W
- Product Type: Square body, -KN/110 type K indictator for micro
- Product Length: 5.433 IN
- Product Details: Square body, -KN/110 type K indictator for micro
- Mounting Method: Din 43 620 blade style
- Product Height: 2.087 IN
- Product Weight: 1.6456 LB
- Product Width: .315 IN
Typical Applications
- DC Common Bus Protection
- DC Drive Systems
- Power Converters and Rectifiers
- Reduced Voltage Starters
- Semiconductor Equipment Protection
Why Bussmann?
Bussmann fuses are engineered for dependable overcurrent protection in demanding industrial power applications. The 170M8617's Class aR high speed design, 125 kAIC interrupt rating, and UL Recognized, IEC Rated construction make it a trusted choice for protecting DC drives, converters, and semiconductor-based equipment where fast, predictable clearing is critical.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 450A
- Class:
- Class aR
- Clearing I2t:
- Clearing at 1000V: 160000
- Current Rating:
- 450A RMS
- Fuse Indicator:
- Non Indicating
- Interrupt Rating:
- 125 kAIC
- Packaging Type:
- Standard
- Pre Arc I2t:
- 27000
- Watt Losses:
- 107W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Square Body Fuses
- Product Type:
- Square body, -KN/110 type K indictator for micro
- Product Length:
- 5.433 IN
- Product Details:
- Square body, -KN/110 type K indictator for micro
- Mounting Method:
- Din 43 620 blade style
- Product Height:
- 2.087 IN
- Product Weight:
- 1.6456 LB
- Product Width:
- .315 IN