Bussmann 170M3761 High Speed Fuse, 80A Class aR
The Bussmann 170M3761 is a High Speed Class aR fuse engineered for demanding DC protection applications, including DC common bus systems, DC drives, and power converters/rectifiers. Rated 80A RMS with a voltage rating of 700 Vac (UL) and 690 Vac (IEC), this fuse delivers a 200 kAIC interrupt rating for reliable protection against high fault currents. It is UL Recognized and IEC Rated, making it suitable for both domestic and international power electronics installations.
Key Features
- Current Rating: 80A RMS delivers dependable overcurrent protection for high-power DC circuits.
- Voltage Rating: 700 Vac (UL), 690 Vac (IEC) supports use across both UL and IEC-compliant systems.
- Fuse Class: Class aR high speed fuse construction for semiconductor and power electronics protection.
- Interrupt Rating: 200 kAIC provides robust protection against high fault-current events.
- Connection: Blade end X blade end termination for secure, direct mounting.
- Fuse Indicator: Non Indicating design.
- Application: Suited for DC common bus, DC drives, and power converters/rectifiers.
- Watt Losses: 18W.
Certifications & Compliance
- IEC Rated
- UL Recognized
- RoHS Compliant
- CE Marked
Technical Specifications
- Amperage Rating: 80A
- Application: DC common bus, DC drives, power converters/rectifiers
- Class: Class aR
- Clearing I2t: Clearing at 660V: 1250
- Current Rating: 80A RMS
- Fuse Indicator: Non Indicating
- Interrupt Rating: 200 kAIC
- Packaging Type: Standard
- Pre Arc I2t: 185
- Voltage Rating: 700 Vac (UL), 690 Vac (IEC)
- Watt Losses: 18W
- 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
Typical Applications
- DC Common Bus Protection
- DC Drive Systems
- Power Converters and Rectifiers
- Semiconductor and Power Electronics Circuits
- Industrial DC Power Distribution
Why Bussmann?
Bussmann fuses are built for demanding power electronics environments, combining a Class aR high speed design with a 200 kAIC interrupt rating and dual UL/IEC voltage compliance. With UL Recognized and IEC Rated certification, RoHS compliance, and CE marking, the 170M3761 delivers dependable, code-compliant overcurrent protection for critical DC applications.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 80A
- Application:
- DC common bus, DC drives, power converters/rectifiers
- Class:
- Class aR
- Clearing I2t:
- Clearing at 660V: 1250
- Connection:
- Blade end X blade end
- Current Rating:
- 80A RMS
- Fuse Indicator:
- Non Indicating
- Interrupt Rating:
- 200 kAIC
- Packaging Type:
- Standard
- Pre Arc I2t:
- 185
- Voltage Rating:
- 700 Vac (UL), 690 Vac (IEC)
- Watt Losses:
- 18W
- 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