Bussmann 170M3440 Eaton Series High-Speed Square Body Fuse, Class aR, 80A
The Bussmann 170M3440 is an Eaton series high-speed square body fuse engineered for semiconductor protection, rated 700V (UL) / 690V (IEC) at 80A with a 100 kAIC interrupting rating. Constructed in a square body, flush end-contact configuration, this Class aR fuse is built for accompanied semiconductor protection duty in demanding power electronics and power conversion equipment. IEC-rated and CE-marked, it is engineered to deliver fast, reliable fault-current interruption where high-speed semiconductor protection is critical.
Key Features
- Voltage Rating: 700V (UL) / 690V (IEC) for high-voltage circuit protection.
- Amperage Rating: 80A continuous current rating for reliable circuit protection.
- Interrupting Rating: 100 kAIC for dependable fault-current interruption.
- Fuse Shape: Square body with flush end contacts for compact, secure mounting.
- Utilization Category: Class aR, rated for accompanied semiconductor protection.
- Application: Engineered specifically for semiconductor protection in power conversion equipment.
- Clearing I²t: 2500 A²s at 1000V, 3350 A²s at 1250V.
- Pre-Arc I²t: 420 A²s for predictable fast-acting performance.
- Watt Losses: 25W.
Certifications & Compliance
- IEC Rated
- CE Marked
Technical Specifications
- Amperage Rating: 80 A
- Application: semiconductor protection
- Certifications: IEC Rated
- Clearing I2t: 2500 at 1000 V, 3350 at 1250 V
- Compliances: CE Marked
- Fuse Shape: Square body, flush end contacts
- Insulated Metal Gripping Lugs (IMGL): No
- Packaging Type: Standard
- Pre Arc I2t: 420
- Product Height: 43 mm
- Product Length Depth: 80 mm
- Product Weight: 450.333 g
- Product Width: 60 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 1250 V
- Voltage Type: AC
- Watt Losses: 25 W
Typical Applications
- Semiconductor Protection in Power Electronics
- Variable Frequency Drives and Motor Controls
- Industrial Power Conversion Equipment
- High-Speed Fault-Current Interruption
- Rectifier and Inverter Circuit Protection
Why Bussmann?
Bussmann by Eaton is a recognized leader in circuit protection, and the 170M3440 reflects that standard with IEC-rated, CE-marked construction built for demanding semiconductor protection duty. With a 100 kAIC interrupting rating and a Class aR utilization category, this high-speed square body fuse delivers dependable, code-compliant performance for professional power electronics applications.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 80 A
- Application:
- semiconductor protection
- Certifications:
- IEC Rated
- Class:
- Class aR
- Clearing I2t:
- 2500 at 1000 V, 3350 at 1250 V
- Compliances:
- CE Marked
- Fuse Indicator:
- Other
- Fuse Shape:
- Square body, flush end contacts
- Insulated Metal Gripping Lugs Imgl:
- No
- Interrupt Rating:
- 100 kAIC
- Mounting Method:
- Flush
- Packaging Type:
- Standard
- Pre Arc I2t:
- 420
- Product Height:
- 43 mm
- Product Length Depth:
- 80 mm
- Product Weight:
- 450.333 g
- Product Width:
- 60 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 1250 V
- Voltage Type:
- AC
- Watt Losses:
- 25 W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse