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Bussmann 170M3313 Class aR IEC Square Body Fuse, 125A 690V
The Bussmann 170M3313 is a Class aR IEC-rated fuse engineered for high-performance overcurrent protection in demanding power electronics applications. Rated 125A at 690V (700V UL), this square body, French-style fuse delivers a 200kAIC interrupt rating and non-indicating operation for reliable, code-compliant protection. It is CE marked and built for use in DC common bus systems, DC drives, power converters/rectifiers, and reduced voltage starters.
Key Features
- Amperage & Voltage Rating: 125A at 690V (700V UL) for robust circuit protection in power conversion equipment.
- Fuse Class: Class aR per IEC standards, designed for semiconductor and drive protection applications.
- Interrupt Rating: 200 kAIC for dependable performance under high fault-current conditions.
- Construction: Square body, French-style design with -E/ type T indicator for micro, non-indicating fuse element.
- I2t Characteristics: Clearing I2t of 3700 at 660V and pre-arc I2t of 550 for precise coordination in protection schemes.
- Watt Losses: 26W, an important factor in thermal design of enclosures and panels.
- Application-Ready: Suited for DC common bus, DC drives, power converters/rectifiers, and reduced voltage starters.
Certifications & Compliance
- IEC Rated
- CE Marked
Technical Specifications
- Amperage Rating: 125 A
- Voltage Rating: 700 V (UL), 690 V (IEC)
- Class: Class aR
- Interrupt Rating: 200 kAIC
- Fuse Indicator: Non Indicating
- Clearing I2t: 3700 at 660 V
- Pre Arc I2t: 550
- Watt Losses: 26 W
- Certifications: IEC Rated
- Compliances: CE Marked
- Application: DC common bus, DC drives, power converters/rectifiers, reduced voltage starters
- Packaging Type: Standard
- Product Type: Square body, French style -E/ type T indicator for micro
Typical Applications
- DC Common Bus Systems
- DC Drives
- Power Converters and Rectifiers
- Reduced Voltage Starters
Why Bussmann?
Bussmann fuses are engineered for demanding electrical environments where reliability and precise protection coordination matter. With a 200 kAIC interrupt rating, IEC Class aR performance, and CE marking, the 170M3313 delivers dependable overcurrent protection for professional power electronics and industrial drive applications.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 125 A
- Certifications:
- IEC Rated
- Class:
- Class aR
- Clearing I2t:
- 3700 at 660 V
- Compliances:
- CE Marked
- Fuse Indicator:
- Non Indicating
- Interrupt Rating:
- 200 kAIC
- Packaging Type:
- Standard
- Pre Arc I2t:
- 550
- Product Height:
- .001 mm
- Product Length Depth:
- .001 mm
- Product Weight:
- .001 g
- Product Width:
- .001 mm
- Voltage Rating:
- 700 V (UL), 690 V (IEC)
- Watt Losses:
- 26 W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Square Body Fuses
- Product Type:
- Fuse