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Bussmann 170M4169 Class aR High Speed Fuse, 900A
The Bussmann 170M4169 is a Class aR high speed fuse engineered to protect demanding DC power systems, including DC common bus arrangements, DC drives, and power converters/rectifiers. Rated 900A RMS with a voltage rating of 700 Vac (UL) and 690 Vac (IEC), this fuse delivers a 200 kAIC interrupt rating for reliable short-circuit clearing in high-current industrial power conversion equipment. It mounts blade end x blade end for DIN 43620-style fuse holders and ships as a non-indicating body for standard installations without a blown-fuse indicator.
Key Features
- Amperage Rating: 900A RMS supports high-current DC bus and drive protection in industrial power systems.
- Class aR Construction: High speed fuse design provides fast, current-limiting clearing for semiconductor and power conversion circuits.
- Voltage Rating: 700 Vac (UL), 690 Vac (IEC) allows use across both UL and IEC-governed installations.
- Interrupt Rating: 200 kAIC delivers dependable short-circuit interruption capacity for demanding fault conditions.
- Connection: Blade end x blade end configuration for DIN 43620 blade-style fuse mounting.
- Fuse Indicator: Non indicating body for standard installations.
- Application: Suited for DC common bus, DC drives, and power converters/rectifiers.
Certifications & Compliance
- CE Marked
- RoHS Compliant
- UL Recognized
- IEC Rated
Technical Specifications
- Amperage Rating: 900A RMS
- Application: DC common bus, DC drives, power converters/rectifiers
- Class: Class aR
- Clearing I2t: Clearing at 660V: 11500
- Clearing Loss: 100
- Connection: Blade end X blade end
- Fuse Indicator: Non Indicating
- Interrupt Rating: 200 kAIC
- Packaging Type: Standard
- Pre Arc I2t: Current pre-arc: 155000
- Voltage Rating: 700 Vac (UL), 690 Vac (IEC)
- Product Length: 5.433 IN
- 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 Wiring
- DC Drive Circuit Protection
- Power Converter and Rectifier Protection
- Industrial DC Power Distribution
Why Bussmann?
Bussmann builds the 170M4169 as a Class aR high speed fuse with a 200 kAIC interrupt rating, CE marking, RoHS compliance, UL recognition, and IEC rating for code-compliant performance in demanding DC power conversion applications. This combination of fast clearing and high interrupt capacity helps protect DC drives, converters, and rectifiers where reliable overcurrent protection is critical to system uptime.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 900A RMS
- Application:
- DC common bus, DC drives, power converters/rectifiers
- Class:
- Class aR
- Clearing I2t:
- Clearing at 660V: 11500
- Clearing Loss:
- 100
- Connection:
- Blade end X blade end
- Fuse Indicator:
- Non Indicating
- Interrupt Rating:
- 200 kAIC
- Packaging Type:
- Standard
- Pre Arc I2t:
- Current pre-arc: 155000
- Voltage Rating:
- 700 Vac (UL), 690 Vac (IEC)
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Length:
- 5.433 IN
- Product Details:
- Square body -/110 visual for micro
- Mounting Method:
- Din 43 620 blade style
- Product Height:
- 2.087 IN
- Product Weight:
- 1.6456 LB
- Product Width:
- .315 IN