Bussmann 170M4397 High Speed Square Body Fuse, Class aR
The Bussmann 170M4397 High Speed Square Body Fuse, Class aR is part of the Eaton Bussmann series, engineered for semiconductor protection in demanding power electronics applications. Rated 700V (UL) / 690V (IEC) with a 630A amperage rating and a 100 kAIC interrupt rating, this Class aR fuse uses a square body design with flush end contacts for compact, high-density panel mounting. It is IEC rated and CE marked, making it suitable for industrial and commercial power distribution and drive systems where accompanied semiconductor protection is required.
Key Features
- Voltage Rating: 700V (UL) / 690V (IEC), with a manufacturer voltage rating of 1000V AC, for high-voltage circuit protection.
- Amperage Rating: 630A rated for high-capacity semiconductor protection circuits.
- Interrupt Rating: 100 kAIC for reliable fault clearing in demanding power electronics applications.
- Fuse Shape: Square body construction with flush end contacts for compact, high-density panel mounting.
- Utilization Category: Class aR (accompanied semiconductor protection) design for coordinated protection of power semiconductor devices.
- Clearing I2t: 660,000 A²s at 1000V; Pre-Arc I2t: 130,000 A²s for precise coordination with semiconductor devices.
- Watt Losses: 100W rated power dissipation.
Certifications & Compliance
- IEC Rated
- CE Marked
Technical Specifications
- Amperage Rating: 630 A
- Application: semiconductor protection
- Certifications: IEC Rated
- Clearing I2t: 660000 at 1000 V
- Compliances: CE Marked
- Fuse Shape: Square body, flush end contacts
- Insulated Metal Gripping Lugs (IMGL): No
- Packaging Type: Standard
- Pre Arc I2t: 130000
- Product Height: 52 mm
- Product Length/Depth: 73 mm
- Product Weight: 284 g
- Product Width: 170 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 1000 V
- Voltage Type: AC
- Watt Losses: 100 W
Typical Applications
- Semiconductor Protection Circuits
- Power Electronics and Drive Systems
- Industrial Motor Control Systems
- High-Speed Protection for Rectifiers and Converters
- Panelboard and Switchgear Installations
Why Bussmann?
Bussmann by Eaton is a recognized name in circuit protection, and the 170M4397 reflects that standard with a square body, flush-contact design built for high-speed semiconductor protection. Backed by IEC rating and CE marking, this Class aR fuse delivers coordinated, code-compliant performance for professional power electronics and industrial installations.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 630 A
- Application:
- semiconductor protection
- Certifications:
- IEC Rated
- Class:
- Class aR
- Clearing I2t:
- 660000 at 1000 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:
- 130000
- Product Height:
- 52 mm
- Product Length Depth:
- 73 mm
- Product Weight:
- 284 g
- Product Width:
- 170 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 1000 V
- Voltage Type:
- AC
- Watt Losses:
- 100 W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse