Bussmann 170M3397 Eaton Series High-Speed Square Body Fuse, Class aR, 350A
The Bussmann 170M3397 is an Eaton series high-speed square body fuse engineered for semiconductor protection, rated 350A with a 100 kAIC interrupting rating and voltage ratings of 700V (UL) and 690V (IEC), with a 1250V AC voltage rating listed. Built as a Class aR fuse for accompanied semiconductor protection, this square body, flush end-contact design delivers the fast clearing performance required to safeguard sensitive power semiconductor devices. The fuse is UL Recognized and CE Marked, making it suitable for industrial power electronics and drive applications where precise, repeatable clearing characteristics are essential.
Key Features
- Amperage Rating: 350A for high-current semiconductor circuit protection.
- Voltage Rating: 700V (UL), 690V (IEC), 1250V AC for demanding power electronics applications.
- Interrupting Rating: 100 kAIC for reliable performance under high fault-current conditions.
- Utilization Category: Class aR (accompanied semiconductor protection) for use alongside other overcurrent devices.
- Fuse Shape: Square body construction with flush end contacts for direct busbar or holder mounting.
- Clearing I2t: 165000 at 1000V and 220000 at 1250V for predictable fast-acting response.
- Pre-Arc I2t: 27000, supporting coordinated protection schemes.
- Watt Losses: 65W rated power dissipation.
Certifications & Compliance
- UL Recognized
- CE Marked
Technical Specifications
- Amperage Rating: 350 A
- Application: semiconductor protection
- Certifications: UL Recognized
- Clearing I2t: 165000 at 1000 V, 220000 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: 27000
- Product Height: 50 mm
- Product Length Depth: 96 mm
- Product Weight: 180 g
- Product Width: 170 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 1250 V
- Voltage Type: AC
- Watt Losses: 65 W
Typical Applications
- Semiconductor Device Protection
- Power Electronics and Variable Frequency Drives
- Industrial Rectifier and Converter Circuits
- Coordinated Overcurrent Protection Schemes
Why Bussmann?
Bussmann by Eaton fuses are engineered with precise pre-arc and clearing I2t characteristics, giving specifiers the data needed to coordinate protection for sensitive semiconductor loads. With UL Recognized and CE Marked compliance plus a 100 kAIC interrupting rating, the 170M3397 delivers the dependable, code-conscious performance professionals expect for critical power electronics protection.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 350 A
- Application:
- semiconductor protection
- Certifications:
- UL Recognized
- Class:
- Class aR
- Clearing I2t:
- 165000 at 1000 V, 220000 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:
- 27000
- Product Height:
- 50 mm
- Product Length Depth:
- 96 mm
- Product Weight:
- 180 g
- Product Width:
- 170 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 1250 V
- Voltage Type:
- AC
- Watt Losses:
- 65 W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse