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Bussmann 170M2670 High Speed Square Body Fuse, Class aR, 350A
Model: BUSS-170M2670
Bussmann
Bussmann 170M4261 High Speed Square Body Fuse, 350A Class aR
The Bussmann 170M4261 is an Eaton Bussmann series high speed square body fuse engineered for demanding semiconductor protection applications. Rated 700V (UL) / 690V (IEC) at 350A with a 200 kAIC interrupt rating, this Class aR fuse is built to the DIN 43 620 fuse specification with blade end x blade end connections for a secure, low-resistance installation. It is CE marked and IEC rated, making it well suited to protecting power semiconductor devices such as rectifiers, converters, and variable frequency drives in industrial and commercial electrical systems.
Key Features
- Voltage & Current Rating: 700V (UL) / 690V (IEC) at 350A with a 200 kAIC interrupt rating for reliable protection against high fault currents.
- Utilization Category: Class aR (accompanied semiconductor protection) built to the DIN 43 620 standard for square body fuses.
- Square Body Construction: Square body design with slotted, center-bolted tags and blade end x blade end connections for a secure, low-resistance mount.
- Physical Dimensions: 245 mm length, 142 mm width, and 62 mm height for compatibility with standard DIN 43 620 fuse holders.
- Fast Semiconductor Protection: Pre-arc I2t of 3100 and clearing I2t of 91500 at 660V limit let-through energy to safeguard sensitive semiconductor components.
- Low Clearing Loss: Clearing loss of 60 supports efficient thermal performance during continuous operation.
- AC Voltage Type: Rated for AC voltage applications within semiconductor protection circuits.
Certifications & Compliance
- CE Marked
- IEC Rated
Technical Specifications
- Amperage Rating: 350 A
- Application: semiconductor protection
- Certifications: IEC Rated
- Clearing I2t: 91500 at 660 V
- Clearing Loss: 60
- Compliances: CE Marked
- Fuse Shape: Square body, slotted center bolted tags
- Insulated Metal Gripping Lugs (IMGL): No
- Packaging Type: Standard
- Pre Arc I2t: 3100
- Product Height: 62 mm
- Product Length Depth: 245 mm
- Product Weight: 499.3333333 g
- Product Width: 142 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 690 V
- Voltage Type: AC
Typical Applications
- Semiconductor Protection
- Power Rectifiers and Converters
- Variable Frequency Drives
- Industrial Motor Control Systems
- High Fault-Current Electrical Circuits
Why Bussmann?
Bussmann by Eaton is a recognized name in circuit protection, and the 170M4261 reflects that reputation with CE marked, IEC rated construction built to the DIN 43 620 fuse specification. Its Class aR utilization category, blade end x blade end connections, and 200 kAIC interrupt rating make it a dependable choice for protecting semiconductor devices in demanding industrial and commercial electrical systems where reliable, code-compliant circuit protection is essential.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 350 A
- Application:
- semiconductor protection
- Certifications:
- IEC Rated
- Class:
- Class aR
- Clearing I2t:
- 91500 at 660 V
- Clearing Loss:
- 60
- Compliances:
- CE Marked
- Connection:
- Blade end x blade end
- Fuse Indicator:
- Other
- Fuse Shape:
- Square body, slotted center bolted tags
- Insulated Metal Gripping Lugs Imgl:
- No
- Interrupt Rating:
- 200 kAIC
- Mounting Method:
- DIN 43 620
- Packaging Type:
- Standard
- Pre Arc I2t:
- 3100
- Product Height:
- 62 mm
- Product Length Depth:
- 245 mm
- Product Weight:
- 499.3333333 g
- Product Width:
- 142 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 690 V
- Voltage Type:
- AC
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse