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Bussmann 170M4519 Class aR Square Body High Speed Fuse, 900A
Model: BUSS-170M4519
Bussmann
Bussmann 170M4719 Class aR High Speed Fuse, 900A
The Bussmann 170M4719 is a Class aR high speed fuse rated 900A RMS, engineered to protect semiconductor devices and power electronics in demanding DC applications. Built for DC common bus, DC drives, and power converter/rectifier circuits, this square body fuse delivers a 200 kAIC interrupt rating with a 700Vac (UL) / 690Vac (IEC) voltage rating for dependable fault-current protection. The blade end x blade end connection and non-indicating design support direct mounting in high-density power distribution equipment.
Key Features
- Amperage Rating: 900A RMS for high-capacity semiconductor circuit protection.
- Class aR Design: Fast-acting Class aR construction suited to DC drives, common bus, and power converter/rectifier applications.
- Voltage Rating: 700Vac (UL), 690Vac (IEC) for use across UL and IEC-rated systems.
- Interrupt Rating: 200 kAIC for reliable performance under high fault-current conditions.
- Connection: Blade end X blade end for direct bolt-in mounting.
- Fuse Indicator: Non Indicating design for standard visual monitoring setups.
- Watt Losses: 100W.
- I2t Ratings: Pre-arc I2t of 155000 and clearing I2t of 850000 at 660V for coordinated circuit protection.
Certifications & Compliance
- CE Marked
- RoHS Compliant
- IEC Rated
- UL Recognized
Technical Specifications
- Amperage Rating: 900A
- Application: DC common bus, DC drives, power converters/rectifiers
- Class: Class aR
- Clearing I2t: Clearing at 660V: 850000
- Connection: Blade end X blade end
- Current Rating: 900A RMS
- Fuse Indicator: Non Indicating
- Interrupt Rating: 200 kAIC
- Packaging Type: Standard
- Pre Arc I2t: 155000
- Voltage Rating: 700 Vac (UL), 690 Vac (IEC)
- Watt Losses: 100W
- Product Type: Square body, US style -FU/115 without indicator
- Product Length: 5.433 IN
- Product Height: 2.087 IN
- Product Width: .315 IN
- Product Weight: 1.6456 LB
Typical Applications
- DC Common Bus Protection
- DC Drive Systems
- Power Converters and Rectifiers
- Industrial Semiconductor Circuit Protection
Why Bussmann?
Bussmann engineers the 170M4719 high speed fuse to UL Recognized and IEC Rated standards, with CE marking and RoHS compliance for global specification. The 200 kAIC interrupt rating and Class aR construction give electrical professionals a dependable, code-compliant option for protecting sensitive DC drives, common bus systems, and power conversion equipment.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 900A
- Application:
- DC common bus, DC drives, power converters/rectifiers
- Class:
- Class aR
- Clearing I2t:
- Clearing at 660V: 850000
- Connection:
- Blade end X blade end
- Current Rating:
- 900A RMS
- Fuse Indicator:
- Non Indicating
- Interrupt Rating:
- 200 kAIC
- Packaging Type:
- Standard
- Pre Arc I2t:
- 155000
- Voltage Rating:
- 700 Vac (UL), 690 Vac (IEC)
- Watt Losses:
- 100W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Length:
- 5.433 IN
- Product Details:
- Square body, US style -FU/115 without indicator
- Product Height:
- 2.087 IN
- Product Weight:
- 1.6456 LB
- Product Width:
- .315 IN