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Bussmann 170M4535 Eaton Series Class aR High-Speed Fuse, 350A
The Bussmann 170M4535 is an Eaton Bussmann series high-speed square body fuse purpose-built for semiconductor protection applications. This Class aR (accompanied semiconductor protection) fuse carries a 350A amperage rating with dual voltage ratings of 1300V (UL) and 1250V (IEC), backed by a 125 kAIC interrupting rating for dependable short-circuit performance. Its square body, center-bolted tag construction and IEC-rated design make it a solid choice for power electronics and drive circuits where fast current-limiting response is essential.
Key Features
- Amperage Rating: 350A, sized for semiconductor protection applications.
- Dual Voltage Rating: 1300V (UL) and 1250V (IEC) for compliance under both UL and IEC standards.
- Interrupting Rating: 125 kAIC delivers dependable high fault-current interrupting capability.
- Utilization Category: Class aR (accompanied semiconductor protection) for coordinated device protection.
- Fuse Shape: Square body with center-bolted tags for the specified mounting configuration.
- Current-Limiting Performance: Clearing I²t of 130,000 A²s at 1000V with a Pre-Arc I²t of 21,500 A²s.
- Watt Losses: 65W rated power dissipation at rated current.
- Compact Footprint: 170 mm length, 72 mm width, and 52 mm height.
Certifications & Compliance
- IEC Rated
- CE Marked
Technical Specifications
- Amperage Rating: 350 A
- Application: semiconductor protection
- Certifications: IEC Rated
- Clearing I²t: 130000 at 1000 V
- Compliances: CE Marked
- Fuse Shape: Square body, center bolted tags
- Insulated Metal Gripping Lugs (IMGL): No
- Packaging Type: Standard
- Pre Arc I²t: 21500
- Product Height: 52 mm
- Product Length/Depth: 170 mm
- Product Weight: .001 g
- Product Width: 72 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 1000 V
- Voltage Type: AC
- Watt Losses: 65 W
Typical Applications
- Semiconductor Protection
- Power Electronics and Drive Systems
- Rectifier and Converter Circuits
- Industrial Motor Control Circuits
- High-Speed Current-Limiting Circuit Protection
Why Bussmann?
Bussmann by Eaton is a recognized name in circuit protection, and the 170M4535 reflects that standard with its IEC-rated, CE-marked construction and a 125 kAIC interrupting rating built for demanding semiconductor protection duty. With defined Pre-Arc and Clearing I²t characteristics, this Class aR fuse offers the precise, coordinated current-limiting performance electrical professionals rely on for code-compliant, reliable protection of power electronics and drive circuits.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 350 A
- Application:
- semiconductor protection
- Certifications:
- IEC Rated
- Class:
- Class aR
- Clearing I2t:
- 130000 at 1000 V
- Compliances:
- CE Marked
- Fuse Indicator:
- Other
- Fuse Shape:
- Square body, center bolted tags
- Insulated Metal Gripping Lugs Imgl:
- No
- Interrupt Rating:
- 125 kAIC
- Packaging Type:
- Standard
- Pre Arc I2t:
- 21500
- Product Height:
- 52 mm
- Product Length Depth:
- 170 mm
- Product Weight:
- .001 g
- Product Width:
- 72 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 1000 V
- Voltage Type:
- AC
- Watt Losses:
- 65 W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse