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Bussmann 170M4519 Class aR Square Body High Speed Fuse, 900A
Model: BUSS-170M4519
Bussmann
Bussmann 170M4769 Class aR High Speed Fuse, 900A
The Bussmann 170M4769 is a Class aR square body high speed fuse rated 900A RMS at 1000 Vac, purpose-built for fast-acting semiconductor protection in DC common bus, DC drives, and power converter/rectifier applications. Featuring a blade end X blade end connection and a non-indicating design, this fuse delivers a 200 kAIC interrupt rating for demanding industrial power electronics. RoHS compliant, CE marked, UL Recognized, and IEC rated, it is engineered for reliable overcurrent protection where high fault currents must be cleared quickly and safely.
Key Features
- Amperage Rating: 900A RMS current rating for high-capacity circuit protection.
- Voltage Rating: 1000 Vac for demanding power electronics applications.
- Class aR Construction: Fast-acting semiconductor fuse class designed for rapid clearing of fault currents.
- Connection: Blade end X blade end termination for secure mounting in fuse holders.
- Interrupt Rating: 200 kAIC for safe operation under high fault-current conditions.
- Fuse Indicator: Non-indicating body style.
- I2t Performance: Pre-arc I2t of 155000 and clearing I2t of 850000 at 660V for predictable coordination.
- Watt Losses: 100W rated power dissipation.
Certifications & Compliance
- RoHS Compliant
- CE Marked
- UL Recognized
- IEC Rated
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: 1000 Vac
- Watt Losses: 100W
- Product Type: Square body, US style -FKE/115 type K indicator for micro
- Product Length: 5.433 IN
- Product Height: 2.087 IN
- Product Weight: 1.6456 LB
- Product Width: .315 IN
- Product Details: Square body, US style -FKE/115 type K indicator for micro
Typical Applications
- DC Common Bus Systems
- DC Drive Overcurrent Protection
- Power Converters and Rectifiers
- Industrial Power Electronics
- Semiconductor Circuit Protection
Why Bussmann?
Bussmann engineers the 170M4769 Class aR fuse with a 200 kAIC interrupt rating and defined I2t characteristics for predictable, coordinated protection in demanding DC power electronics. Backed by UL Recognition, IEC rating, CE marking, and RoHS compliance, this fuse delivers the dependable, code-compliant performance professionals expect for high-current DC common bus, drive, and converter/rectifier protection.
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:
- 1000 Vac
- Watt Losses:
- 100W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Length:
- 5.433 IN
- Product Height:
- 2.087 IN
- Product Weight:
- 1.6456 LB
- Product Width:
- .315 IN