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Bussmann 170M7548 Square Body High Speed Fuse, 1500A Class aR
The Bussmann 170M7548 is a Class aR high-speed square body fuse rated 1500A RMS at 1000 Vac, engineered to protect semiconductors and power electronics in demanding DC applications. With a 125 kAIC interrupt rating and Din 43-620 blade end connections on both ends, this fuse delivers fast, reliable clearing for DC common bus systems, DC drives, power converters/rectifiers, and reduced voltage starters. Its non-indicating design and defined I2t characteristics make it a dependable choice for professional industrial power protection.
Key Features
- Amperage Rating: 1500A RMS current rating for high-capacity DC bus and drive protection.
- Class aR Fuse: Purpose-built for semiconductor and power converter protection.
- Voltage Rating: 1000 Vac for demanding industrial power system applications.
- Interrupt Rating: 125 kAIC for dependable fault current clearing.
- Connection: Din 43-620 blade end x Din 43-620 blade end for standardized mounting.
- Fuse Indicator: Non Indicating design.
- Watt Losses: 250W rated power dissipation.
- I2t Characteristics: Pre-Arc I2t of 600000 and Clearing I2t at 1000V of 3600000 for precise coordination.
Certifications & Compliance
- UL Recognized
- IEC Rated
- RoHS Compliant
- CE Marked
Technical Specifications
- Amperage Rating: 1500A
- Application: DC common bus, DC drives, power converters/rectifiers, reduced voltage starters
- Class: Class aR
- Clearing I2t: Clearing at 1000V: 3600000
- Connection: Din 43-620 blade end X Din 43-620 blade end
- Current Rating: 1500A RMS
- Fuse Indicator: Non Indicating
- Interrupt Rating: 125 kAIC
- Packaging Type: Standard
- Pre Arc I2t: 600000
- Voltage Rating: 1000 Vac
- Watt Losses: 250W
- Product Type: Square Body, -SBKN/90 type K indicator
- Product Length: 5.433 IN
- Product Details: Square Body, -SBKN/90 type K indicator
- Product Height: 2.087 IN
- Product Weight: 1.6456 LB
- Product Width: .315 IN
Typical Applications
- DC Common Bus Systems
- DC Drives
- Power Converters and Rectifiers
- Reduced Voltage Starters
Why Bussmann?
Bussmann fuses are engineered for dependable, code-compliant performance in critical DC power applications. With UL Recognition, IEC rating, a 125 kAIC interrupt rating, and defined Class aR I2t characteristics, the 170M7548 delivers the precise semiconductor protection professionals rely on for DC drives, converters, and rectifier systems.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 1500A
- Class:
- Class aR
- Clearing I2t:
- Clearing at 1000V: 3600000
- Connection:
- Din 43-620 blade end X Din 43-620 blade end
- Current Rating:
- 1500A RMS
- Fuse Indicator:
- Non Indicating
- Interrupt Rating:
- 125 kAIC
- Packaging Type:
- Standard
- Pre Arc I2t:
- 600000
- Voltage Rating:
- 1000 Vac
- Watt Losses:
- 250W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Square Body Fuses
- Product Type:
- Square Body, -SBKN/90 type K indicator
- Product Length:
- 5.433 IN
- Product Details:
- Square Body, -SBKN/90 type K indicator
- Product Height:
- 2.087 IN
- Product Weight:
- 1.6456 LB
- Product Width:
- .315 IN