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Bussmann 170M4263 High-Speed Square Body Fuse, 450A Class aR
Model: BUSS-170M4263
Bussmann
Bussmann 170M4613 Class aR High Speed Fuse, 450A
The Bussmann 170M4613 is a Class aR high speed fuse engineered for demanding power electronics applications, including DC common bus systems, DC drives, and power converters/rectifiers. Rated at 450A with a 400A RMS current rating, this fuse delivers reliable overcurrent protection at up to 700 Vac (UL) / 550 Vac (IEC), backed by a 200 kAIC interrupt rating for high fault-current environments. Blade end X blade end connections simplify installation into blade-style fuse blocks and busbar assemblies, while the non-indicating design keeps the footprint compact and consistent. Bussmann backs the 170M4613 with UL Recognized and IEC Rated listings for use in industrial and commercial power electronics equipment.
Key Features
- Amperage Rating: 450A rating sized for high-capacity DC common bus and drive protection.
- Current Rating: 400A RMS supports continuous load handling in power conversion circuits.
- Class aR Design: high speed fuse construction built for fast clearing of fault currents in DC common bus, DC drive, and power converter/rectifier applications.
- Voltage Rating: 700 Vac (UL), 550 Vac (IEC) for flexible use across UL- and IEC-compliant equipment.
- Interrupt Rating: 200 kAIC delivers high fault-current interrupting capacity for demanding industrial circuits.
- Connection: Blade end X blade end terminals for direct mounting into blade-style fuse blocks and busbar assemblies.
- Fuse Indicator: Non Indicating construction.
- Watt Losses: 70W rated power loss for thermal system design considerations.
Certifications & Compliance
- IEC Rated
- UL Recognized
- RoHS Compliant
- CE Marked
Technical Specifications
- Amperage Rating: 450A
- Application: DC common bus, DC drives, power converters/rectifiers
- Class: Class aR
- Clearing I2t: Clearing at 660V: 120000
- Connection: Blade end X blade end
- Current Rating: 400A RMS
- Fuse Indicator: Non Indicating
- Interrupt Rating: 200 kAIC
- Packaging Type: Standard
- Pre Arc I2t: 17000
- Voltage Rating: 700 Vac (UL), 550 Vac (IEC)
- Watt Losses: 70W
- Product Type: Square body, US style -FU/- Without indicator
Typical Applications
- DC Common Bus Protection
- DC Drive Circuit Protection
- Power Converter and Rectifier Protection
- Industrial Power Electronics
- Semiconductor and High-Speed Switching Protection
Why Bussmann?
Bussmann fuses are engineered and tested to UL Recognized and IEC Rated standards, giving electrical professionals confidence in consistent, code-compliant overcurrent protection for critical power electronics systems. RoHS compliance and CE marking further confirm the 170M4613 meets recognized global quality and environmental standards. Choose Bussmann for dependable, high-speed fuse protection engineered for demanding DC common bus, DC drive, and power converter/rectifier applications.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 450A
- Application:
- DC common bus, DC drives, power converters/rectifiers
- Class:
- Class aR
- Clearing I2t:
- Clearing at 660V: 120000
- Connection:
- Blade end X blade end
- Current Rating:
- 400A RMS
- Fuse Indicator:
- Non Indicating
- Interrupt Rating:
- 200 kAIC
- Packaging Type:
- Standard
- Pre Arc I2t:
- 17000
- Voltage Rating:
- 700 Vac (UL), 550 Vac (IEC)
- Watt Losses:
- 70W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Length:
- 5.433 IN
- Product Details:
- Square body, US style -FU/- Without indicator
- Product Height:
- 2.087 IN
- Product Weight:
- 1.6456 LB
- Product Width:
- .315 IN