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Bussmann 170M5188 High-Speed Square Body Fuse, Class aR, 250A
The Bussmann 170M5188 is part of the Eaton Bussmann series of high-speed square body fuses, engineered for demanding semiconductor protection applications. This Class aR fuse carries a 700V (UL) / 690V (IEC) voltage rating, a 250A amperage rating, and a 100 kAIC interrupt rating for dependable fault current interruption in power electronics circuits. Manufactured to the DIN 43 620 dimensional standard, it features a square body design with slotted, center bolted tags for secure mounting, and is backed by IEC certification and CE marking for compliance across global electrical systems.
Key Features
- Amperage Rating: 250A for dependable overcurrent protection in demanding power circuits.
- Voltage Rating: 700V (UL) and 690V (IEC), suited for both UL and IEC-compliant electrical systems.
- Interrupt Rating: 100 kAIC delivers dependable high fault current interruption performance.
- Fuse Class: Class aR (accompanied semiconductor protection) per its Utilization Category rating.
- Construction: Square body fuse shape with slotted, center bolted tags for secure installation.
- Standard: Manufactured to the DIN 43 620 dimensional standard.
- Application: Purpose-built for semiconductor protection in power electronics and industrial circuits.
- Watt Losses: Rated at 65W.
Certifications & Compliance
- IEC Rated
- CE Marked
Technical Specifications
- Amperage Rating: 250 A
- Application: semiconductor protection
- Certifications: IEC Rated
- Clearing I2t: 38500 at 1000 V, 51500 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: 6500
- Product Height: 67 mm
- Product Length/Depth: 284 mm
- Product Weight: 634 g
- Product Width: 175 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 1250 V
- Voltage Type: AC
- Watt Losses: 65 W
Typical Applications
- Semiconductor Device Protection
- Power Electronics and Converter Circuits
- Industrial and Commercial Power Distribution
- High-Speed Fault Current Interruption
Why Bussmann?
Bussmann by Eaton is a trusted name in circuit protection, and the 170M5188 reflects that standard with its Class aR utilization rating, IEC certification, and CE marking for compliance across global electrical systems. Built to the DIN 43 620 standard with a rugged square body design and slotted, center bolted tags, this high-speed fuse delivers dependable protection for semiconductor devices and power electronics where reliability under fault conditions is critical.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 250 A
- Application:
- semiconductor protection
- Certifications:
- IEC Rated
- Class:
- Class aR
- Clearing I2t:
- 38500 at 1000 V, 51500 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:
- 6500
- Product Height:
- 67 mm
- Product Length Depth:
- 284 mm
- Product Weight:
- 634 g
- Product Width:
- 175 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