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Bussmann 170M7513 Class aR Fuse, 1400A 1250V, Semiconductor Protection
The Bussmann 170M7513 is a Class aR fuse rated 1400A at 1250V, purpose-built for semiconductor protection in demanding industrial power circuits. Identified by the designation 4SBKN/105 AR, this fuse is UL Recognized and CE Marked, delivering a 125 kAIC interrupt rating for reliable performance under fault conditions. Designed for flush mounting, it provides the fast, accurate clearing characteristics required to safeguard sensitive semiconductor devices such as rectifiers and power converters.
Key Features
- Rated Amperage & Voltage: 1400A at 1250V for high-power semiconductor circuits.
- Class aR Construction: Utilization Category aR (accompanied semiconductor protection), used with another overcurrent device to protect semiconductor devices.
- High Interrupt Rating: 125 kAIC interrupt rating for dependable operation under high fault currents.
- Flush Mounting: Flush mounting method for compact integration into panels and enclosures.
- Application-Specific Protection: Engineered for semiconductor protection in power electronics and converter circuits.
- Coordinated Clearing: Pre-Arc I²t of 2,300,000 and Clearing I²t of 14,500,000 at 1250V for precise let-through coordination.
- Watt Loss Rating: 235W rated watt loss for thermal and enclosure design planning.
Certifications & Compliance
- UL Recognized
- CE Marked
Technical Specifications
- Amperage Rating: 2000 A
- Application: semiconductor protection
- Certifications: UL Recognized
- Class: Class aR
- Clearing I²t: 14500000 at 1250 V
- Compliances: CE Marked
- Fuse Indicator: Other
- Insulated Metal Gripping Lugs (IMGL): No
- Interrupt Rating: 125 kAIC
- Mounting Method: Flush
- Packaging Type: Standard
- Pre Arc I²t: 2300000
- Product Height: 116 mm
- Product Length Depth: 202 mm
- Product Weight: 3315.303928 g
- Product Width: 140 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 1250 V
- Voltage Type: AC
- Watt Losses: 235 W
Typical Applications
- Semiconductor Protection in Power Electronics
- Variable Frequency Drives and Motor Control Circuits
- Industrial Power Distribution and Switchgear
- Rectifier and Power Converter Circuits
- Panelboard Overcurrent Protection
Why Bussmann?
Bussmann fuses are engineered for demanding industrial applications, and the 170M7513 is built as a Class aR semiconductor fuse with UL Recognized and CE Marked compliance for verified safety performance. With a 125 kAIC interrupt rating and precise Pre-Arc and Clearing I²t characteristics, this fuse delivers coordinated protection for critical power electronics. Choose Bussmann for reliable, code-compliant overcurrent protection built to demanding industrial standards.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 2000 A
- Application:
- semiconductor protection
- Certifications:
- UL Recognized
- Class:
- Class aR
- Clearing I2t:
- 14500000 at 1250 V
- Compliances:
- CE Marked
- Fuse Indicator:
- Other
- Insulated Metal Gripping Lugs Imgl:
- No
- Interrupt Rating:
- 125 kAIC
- Mounting Method:
- Flush
- Packaging Type:
- Standard
- Pre Arc I2t:
- 2300000
- Product Height:
- 116 mm
- Product Length Depth:
- 202 mm
- Product Weight:
- 3315.303928 g
- Product Width:
- 140 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 1250 V
- Voltage Type:
- AC
- Watt Losses:
- 235 W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse