You may also like
Bussmann 170M2670 High Speed Square Body Fuse, Class aR, 350A
Model: BUSS-170M2670
Bussmann
Bussmann 170M3247 High Speed Square Body Fuse, 350A Class aR
The Bussmann 170M3247 is an Eaton Bussmann series high speed square body fuse engineered for semiconductor protection in demanding industrial power circuits. Rated 350A with a voltage rating of 700V (UL) and 690V (IEC), plus a 100 kAIC interrupt rating, this Class aR fuse is built to the DIN 43 620 standard with square body, slotted center bolted-tag construction. Classified in the aR utilization category for accompanied semiconductor protection, it is IEC Rated and CE Marked for professional electrical and industrial power systems.
Key Features
- Amperage Rating: 350A for high-capacity semiconductor circuit protection.
- Voltage Rating: 700V (UL), 690V (IEC), with a 1250V AC rating for demanding power applications.
- Interrupt Rating: 100 kAIC for dependable performance under high fault-current conditions.
- Utilization Category: Class aR (accompanied semiconductor protection) for coordinated use with other overcurrent devices.
- Fuse Shape: Square body construction with slotted center bolted tags, built to the DIN 43 620 standard for secure, low-resistance connections.
- Clearing I2t: 165,000 at 1000V and 220,000 at 1250V, with a Pre-Arc I2t of 27,000 for precise current-limiting performance.
- Watt Losses: 65W.
- Dimensions: 145 mm width x 305 mm length/depth x 65 mm height; weighs 73 g.
Certifications & Compliance
- IEC Rated
- CE Marked
Technical Specifications
- Amperage Rating: 350 A
- Application: semiconductor protection
- Certifications: IEC Rated
- Clearing I2t: 165000 at 1000 V, 220000 at 1250 V
- Compliances: CE Marked
- Fuse Shape: Square body, slotted center bolted tags
- Insulated Metal Gripping Lugs (IMGL): No
- Packaging Type: Standard
- Pre-Arc I2t: 27000
- Product Height: 65 mm
- Product Length Depth: 305 mm
- Product Weight: 73 g
- Product Width: 145 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 1250 V
- Voltage Type: AC
- Watt Losses: 65 W
Typical Applications
- Semiconductor Protection Circuits
- Industrial Power Conversion Equipment
- Motor Drive and Rectifier Protection
- High-Speed Overcurrent Protection Systems
- Commercial and Industrial Electrical Installations
Why Bussmann?
Bussmann by Eaton is a recognized name in high-speed fuse technology, and the 170M3247 reflects that engineering discipline with its square body, slotted bolted-tag design built to the DIN 43 620 standard. With IEC Rated and CE Marked compliance, a 100 kAIC interrupt rating, and Class aR semiconductor protection performance, this fuse delivers the reliable, code-compliant current limiting that professional electrical and industrial power systems demand.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 350 A
- Application:
- semiconductor protection
- Certifications:
- IEC Rated
- Class:
- Class aR
- Clearing I2t:
- 165000 at 1000 V, 220000 at 1250 V
- Compliances:
- CE Marked
- Fuse Indicator:
- Other
- Fuse Shape:
- Square body, slotted center bolted tags
- Insulated Metal Gripping Lugs Imgl:
- No
- Interrupt Rating:
- 100 kAIC
- Mounting Method:
- DIN 43 620
- Packaging Type:
- Standard
- Pre Arc I2t:
- 27000
- Product Height:
- 65 mm
- Product Length Depth:
- 305 mm
- Product Weight:
- 73 g
- Product Width:
- 145 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