Bussmann 170M4262 Eaton Series High-Speed Square Body Fuse, Class aR
The Bussmann 170M4262 is an Eaton Bussmann series high-speed square body fuse engineered for demanding semiconductor protection applications. Rated 700V (UL) / 690V (IEC) and 400A with a 200 kAIC interrupt rating, this Class aR fuse features blade end x blade end terminals built to the DIN 43 620 standard, delivering the fast-clearing performance required to protect power semiconductors from short-circuit and overcurrent conditions.
Key Features
- Amperage Rating: 400A for high-current semiconductor protection circuits.
- Voltage Rating: 700V (UL) / 690V (IEC), 690V AC rating for demanding industrial power systems.
- Interrupt Rating: 200 kAIC, providing high fault-current interrupting capability.
- Utilization Category: Class aR (accompanied semiconductor protection) for coordinated protection of power semiconductors.
- Connection Type: Blade end x blade end terminals per the DIN 43 620 standard for secure bolted mounting.
- Fuse Shape: Square body with slotted center bolted tags for reliable connection to busbar or fuse holders.
- Clearing I2t: 120000 A²s at 660V; Pre-Arc I2t: 6200 A²s, for precise let-through energy coordination.
- Clearing Loss: 65 W, reflecting the fuse's power dissipation characteristics under rated load.
Certifications & Compliance
- UL Recognized
- CE Marked
Technical Specifications
- Amperage Rating: 400 A
- Application: semiconductor protection
- Certifications: UL Recognized
- Clearing I2t: 120000 at 660 V
- Clearing Loss: 65
- Compliances: CE Marked
- Fuse Shape: Square body, slotted center bolted tags
- Insulated Metal Gripping Lugs (IMGL): No
- Packaging Type: Standard
- Pre Arc I2t: 6200
- Product Height: 62 mm
- Product Length Depth: 245 mm
- Product Weight: 501 g
- Product Width: 142 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 690 V
- Voltage Type: AC
Typical Applications
- Semiconductor Protection Circuits
- Power Electronics and Variable Frequency Drives
- Industrial Motor Control Systems
- High-Speed Switching and Rectifier Equipment
- Bolted Busbar and Fuse Holder Assemblies
Why Bussmann?
Bussmann by Eaton engineers the 170M4262 for the precise, fast-clearing performance that sensitive power semiconductors demand. With a UL Recognized listing, CE Marked compliance, and a 200 kAIC interrupt rating in a robust square body, bolted-tag design, this fuse delivers dependable, code-compliant overcurrent protection for critical industrial power electronics.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 400 A
- Application:
- semiconductor protection
- Certifications:
- UL Recognized
- Class:
- Class aR
- Clearing I2t:
- 120000 at 660 V
- Clearing Loss:
- 65
- 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:
- 6200
- Product Height:
- 62 mm
- Product Length Depth:
- 245 mm
- Product Weight:
- 501 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