Bussmann 170M3444 Eaton Series High-Speed Square Body Fuse, Class aR
The Bussmann 170M3444 is an Eaton Bussmann series high-speed square body fuse engineered for semiconductor protection in demanding industrial power systems. Rated 700V (UL) / 690V (IEC) with a 200A amperage rating and a 100 kAIC interrupting capacity, this Class aR fuse features flush end contacts and a compact square body construction built for accompanied semiconductor protection duty. It is UL Recognized and CE Marked for use in professional electrical installations.
Key Features
- Amperage Rating: 200A for reliable overcurrent protection in high-power circuits.
- Voltage Rating: 700V (UL) / 690V (IEC), with a 1250V rating on the fuse body for demanding industrial voltage systems.
- Interrupting Capacity: 100 kAIC delivers high-speed fault current interruption for semiconductor protection.
- Utilization Category: Class aR (accompanied semiconductor protection) for use alongside coordinated overcurrent devices.
- Fuse Shape: Square body with flush end contacts for compact, direct-mount installation.
- Watt Losses: 45W rated power loss to support thermal system design.
- Clearing I2t: 31000 at 1000V and 41000 at 1250V, with a Pre-Arc I2t of 5150, for precise overcurrent coordination.
- Compact Dimensions: 60 mm height x 92 mm length/depth x 163 mm width, weighing 922 g.
Certifications & Compliance
- UL Recognized
- CE Marked
Technical Specifications
- Amperage Rating: 200 A
- Application: semiconductor protection
- Certifications: UL Recognized
- Clearing I2t : 31000 at 1000 V, 41000 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 : 5150
- Product Height: 60 mm
- Product Length Depth: 92 mm
- Product Weight: 922 g
- Product Width: 163 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 1250 V
- Voltage Type: AC
- Watt Losses: 45 W
Typical Applications
- Semiconductor Protection
- High-Speed Fault Current Interruption
- Industrial Power Electronics Systems
- Class aR Accompanied Protection Applications
Why Bussmann?
Bussmann by Eaton is a trusted name in circuit protection, and the 170M3444 reflects that standard with UL Recognized and CE Marked compliance for professional-grade reliability. Its Class aR utilization category and square body, flush-end-contact design deliver precise, high-speed semiconductor protection that engineers can specify with confidence. Choose Bussmann for code-compliant performance in demanding industrial power applications.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 200 A
- Application:
- semiconductor protection
- Certifications:
- UL Recognized
- Class:
- Class aR
- Clearing I2t:
- 31000 at 1000 V, 41000 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:
- 5150
- Product Height:
- 60 mm
- Product Length Depth:
- 92 mm
- Product Weight:
- 922 g
- Product Width:
- 163 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 1250 V
- Voltage Type:
- AC
- Watt Losses:
- 45 W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse