Bussmann 170M3570 Class aR High Speed Fuse, 450A, 700V
The Bussmann 170M3570 is a Class aR high-speed fuse engineered for demanding DC power protection, rated 450A RMS with a voltage rating of 700 Vac (UL) / 690 Vac (IEC) and a 200 kAIC interrupt rating. Built as a square-body fuse for DC common bus, DC drives, and power converter/rectifier applications, it delivers fast-acting semiconductor-grade protection where high fault currents demand rapid clearing. The design is UL Recognized and IEC Rated, giving specifiers a single fuse that meets both North American and international requirements.
Key Features
- Amperage Rating: 450A RMS current rating sized for DC common bus, DC drive, and power converter/rectifier circuits.
- Voltage Rating: Rated 700 Vac (UL) and 690 Vac (IEC) for use across UL and IEC-governed systems.
- Interrupt Rating: 200 kAIC interrupt rating provides high fault-current clearing capability.
- Class aR Construction: Square-body Class aR design built for high-speed semiconductor and power-electronics protection.
- Fuse Indicator: Non-Indicating style.
- Watt Losses: 65W rated power loss.
- Mounting Method: Flush mounting configuration.
- Dimensions: 5.433 IN length x 2.087 IN height x .315 IN width; 1.6456 LB weight.
Certifications & Compliance
- UL Recognized
- IEC Rated
- 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: 140000
- Current Rating: 450A RMS
- Fuse Indicator: Non Indicating
- Interrupt Rating: 200 kAIC
- Packaging Type: Standard
- Pre Arc I2t: 115
- Voltage Rating: 700 Vac (UL), 690 Vac (IEC)
- Watt Losses: 65W
- Product Type: Square body -GKN/- type K indicator for micro
- Product Length: 5.433 IN
- Product Details: Square body -GKN/- type K indicator for micro
- Mounting Method: Flush
- 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 Protection
- Industrial DC Power Distribution
Why Bussmann?
Bussmann engineers the 170M3570 Class aR fuse with square-body construction, a 200 kAIC interrupt rating, and dual UL Recognized / IEC Rated compliance for reliable, code-conscious protection of DC common bus, drive, and power converter circuits. RoHS compliance and CE marking further support use in globally specified industrial and power-electronics installations.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 450A
- Application:
- DC common bus, DC drives, power converters/rectifiers
- Class:
- Class aR
- Clearing I2t:
- Clearing at 660V: 140000
- Current Rating:
- 450A RMS
- Fuse Indicator:
- Non Indicating
- Interrupt Rating:
- 200 kAIC
- Packaging Type:
- Standard
- Pre Arc I2t:
- 115
- Voltage Rating:
- 700 Vac (UL), 690 Vac (IEC)
- Watt Losses:
- 65W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Length:
- 5.433 IN
- Product Details:
- Square body -GKN/- type K indicator for micro
- Mounting Method:
- Flush
- Product Height:
- 2.087 IN
- Product Weight:
- 1.6456 LB
- Product Width:
- .315 IN