Bussmann 170M4396 Eaton Series High-Speed Square Body Fuse, 550A Class aR
The Bussmann 170M4396 is an Eaton Bussmann series high-speed square body fuse engineered for demanding semiconductor protection applications. Rated 700V (UL) and 550V (IEC) with a 550A amperage rating and a 100 kAIC interrupting rating, this Class aR fuse delivers fast-acting overcurrent protection for accompanied semiconductor devices. Its square body construction with flush end contacts supports compact, high-density mounting in power electronics assemblies, and the fuse carries a UL Recognized listing along with CE Marked compliance.
Key Features
- Voltage Rating: 700V (UL) and 550V (IEC) for reliable protection across UL and IEC-rated circuits.
- Amperage Rating: 550A rated to handle high-current semiconductor protection loads.
- Interrupting Rating: 100 kAIC high-speed interrupting capability for demanding fault-current conditions.
- Utilization Category: Class aR (accompanied semiconductor protection) designed specifically to protect semiconductor devices from damaging fault currents.
- Fuse Shape: Square body with flush end contacts for a compact, low-profile installation footprint.
- Thermal Performance: 95W watt losses for efficient operation under continuous load.
- Compact Construction: 170 mm width x 52 mm height x 73 mm depth at 556 g, suited for space-constrained power electronics enclosures.
Certifications & Compliance
- UL Recognized
- CE Marked
Technical Specifications
- Amperage Rating: 550 A
- Application: semiconductor protection
- Certifications: UL Recognized
- Clearing I2t: 465000 at 1000 V, 590000 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: 95000
- Product Height: 52 mm
- Product Length Depth: 73 mm
- Product Weight: 556 g
- Product Width: 170 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 1000 V
- Voltage Type: AC
- Watt Losses: 95 W
Typical Applications
- Semiconductor Device Protection
- Power Electronics and Converter Circuits
- Industrial Motor Drive Systems
- High-Speed Fault Current Interruption
- Class aR Accompanied Fuse Applications
Why Bussmann?
Bussmann by Eaton is a trusted name in circuit protection, and the 170M4396 reflects that reputation with a high-speed square body design built for demanding semiconductor protection duty. Backed by a UL Recognized listing and CE Marked compliance, this Class aR fuse delivers the interrupting performance and construction quality professional electrical and power electronics teams rely on.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 550 A
- Application:
- semiconductor protection
- Certifications:
- UL Recognized
- Class:
- Class aR
- Clearing I2t:
- 465000 at 1000 V, 590000 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:
- 95000
- Product Height:
- 52 mm
- Product Length Depth:
- 73 mm
- Product Weight:
- 556 g
- Product Width:
- 170 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 1000 V
- Voltage Type:
- AC
- Watt Losses:
- 95 W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse