Bussmann 170M4214 Class aR High-Speed Square Body Fuse, 500A
The Bussmann 170M4214 is an Eaton Bussmann series high-speed square body fuse engineered for semiconductor protection in demanding industrial power circuits. Rated 700V (UL) and 690V (IEC) at 500A with a 200 kAIC interrupt rating, this Class aR fuse is built for accompanied semiconductor protection where fast clearing and high fault-current withstand are critical. Its square body design features blade end x blade end terminals per DIN 43620 and a top fuse status indicator for quick visual verification.
Key Features
- Amperage & Voltage Rating: 500A at 700V (UL) / 690V (IEC) for high-capacity circuit protection.
- High Interrupt Rating: 200 kAIC short-circuit current rating for reliable performance in high fault-current environments.
- Utilization Category: Class aR (accompanied semiconductor protection) designed to protect semiconductor devices from damaging overcurrents.
- Square Body Construction: Slotted center bolted tags with blade end x blade end connections per DIN 43620.
- Top Fuse Status Indicator: Provides quick visual confirmation of fuse condition.
- Let-Through Characteristics: Clearing I2t of 230000 at 660V and Pre-Arc I2t of 13500 support coordinated protection design.
- Clearing Loss: 72 for predictable thermal performance under load.
Certifications & Compliance
- UL Recognized
- CE Marked
Technical Specifications
- Amperage Rating: 500 A
- Application: Semiconductor protection
- Certifications: UL Recognized
- Clearing I2t: 230000 at 660 V
- Clearing Loss: 72
- Compliances: CE Marked
- Fuse Shape: Square body, slotted center bolted tags
- Insulated Metal Gripping Lugs (IMGL): No
- Packaging Type: Standard
- Pre Arc I2t: 13500
- 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 Overcurrent Protection
- Power Electronics and Variable Frequency Drives
- Industrial Motor Control Circuits
- High Fault-Current Industrial Power Systems
- Panelboard and Switchgear Protection
Why Bussmann?
Bussmann fuses are recognized for precision engineering and dependable overcurrent protection in demanding electrical applications. The 170M4214's UL Recognized and CE Marked status, combined with its 200 kAIC interrupt rating and Class aR semiconductor protection design, make it a trusted choice for professional, code-compliant industrial installations.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 500 A
- Application:
- semiconductor protection
- Certifications:
- UL Recognized
- Class:
- Class aR
- Clearing I2t:
- 230000 at 660 V
- Clearing Loss:
- 72
- Compliances:
- CE Marked
- Connection:
- Blade end x blade end
- Fuse Indicator:
- Top fuse status indicator
- 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:
- 13500
- 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