Bussmann 170M3723 High Speed Square Body Fuse, 630A 690V Class aR
The Bussmann 170M3723 is an Eaton Bussmann series high speed square body fuse rated 630A HS at 690V, purpose-built for DC common bus, DC drives, and power converter/rectifier protection. This Class aR fuse features a blade end x blade end connection, a 200 kAIC interrupt rating, and a 1000 V voltage rating for demanding industrial DC power distribution. The square body, US-style FU/115 design (without indicator) is IEC rated and CE marked for use in professional electrical and power electronics installations.
Key Features
- Amperage Rating: 630A for high-capacity DC common bus, DC drive, and power converter/rectifier circuits.
- High Speed Fuse Class aR: HS 690V high speed construction engineered for semiconductor-grade DC protection.
- Voltage Rating: 1000 V rated voltage with a 200 kAIC interrupt rating for demanding DC installations.
- Connection Type: Blade end x blade end termination for compatible high-speed fuse holders and disconnects.
- Fuse Indicator: Non-indicating body design.
- Clearing Characteristics: Pre-arc I²t of 48500 and clearing I²t of 325000 at 660 V for predictable let-through energy.
- Compact Square Body: Square body, US-style FU/115 configuration without indicator, measuring 170 mm wide x 96 mm long x 50 mm high.
Certifications & Compliance
- IEC Rated
- CE Marked
Technical Specifications
- Amperage Rating: 630 A
- Application: DC common bus, DC drives, power converters/rectifiers
- Certifications: IEC Rated
- Class: Class aR
- Clearing I2t: 325000 at 660 V
- Compliances: CE Marked
- Connection: Blade end x blade end
- Fuse Indicator: Non Indicating
- Interrupt Rating: 200 kAIC
- Packaging Type: Standard
- Pre Arc I2t: 48500
- Product Height: 50 mm
- Product Length Depth: 96 mm
- Product Weight: 196.5 g
- Product Width: 170 mm
- Voltage Rating: 1000 V
- Watt Losses: 80 W
- Product Type: Square body, US style -FU/115 without indicator
- Product Details: Square body, US style -FU/115 without indicator
Typical Applications
- DC Common Bus Protection
- DC Drive Circuits
- Power Converter and Rectifier Protection
- Semiconductor and Power Electronics Protection
- Industrial DC Power Distribution
Why Bussmann?
The Eaton Bussmann series 170M3723 delivers Class aR high speed fuse performance with a 200 kAIC interrupt rating, IEC rated and CE marked compliance for international electrical standards. Its square body, blade end x blade end design supports reliable, code-compliant protection for demanding DC common bus, drive, and power converter applications where predictable clearing characteristics matter.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 630 A
- Application:
- DC common bus, DC drives, power converters/rectifiers
- Certifications:
- IEC Rated
- Class:
- Class aR
- Clearing I2t:
- 325000 at 660 V
- Compliances:
- CE Marked
- Connection:
- Blade end x blade end
- Fuse Indicator:
- Non Indicating
- Interrupt Rating:
- 200 kAIC
- Packaging Type:
- Standard
- Pre Arc I2t:
- 48500
- Product Height:
- 50 mm
- Product Length Depth:
- 96 mm
- Product Weight:
- 196.5 g
- Product Width:
- 170 mm
- Voltage Rating:
- 1000 V
- Watt Losses:
- 80 W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Square Body Fuses
- Product Type:
- Square body, US style -FU/115 without indicator
- Product Details:
- Square body, US style -FU/115 without indicator