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Bussmann 170M4955 High-Speed Fuse-Link, 350A, aR, Size 1
The Bussmann 170M4955 is a high-speed fuse-link engineered for semiconductor protection, rated 350A at up to 1000V AC. Built to IEC 60269-4 standards in a Size 1, square-body configuration measuring 52 x 69 x 74 mm with flush end contacts, this aR class fuse-link delivers fast-acting overcurrent protection for power electronics and solid-state devices. It includes a single indicator for quick visual confirmation of fuse status and carries both IEC and UL recognition, making it well suited for demanding industrial electrical systems that rely on accompanied semiconductor protection.
Key Features
- Size 1 Body: Compact 52 x 69 x 74 mm square-body construction with flush end contacts for secure mounting in standard high-speed fuse holders.
- High-Speed aR Class: Class aR (accompanied semiconductor protection) utilization category is engineered for fast clearing of overcurrent faults ahead of sensitive semiconductor devices.
- 350A Current Rating: Rated for 350A to protect demanding power electronics, drive, and rectifier loads.
- 1000V AC Voltage Rating: Rated up to 1000V AC for use in high-voltage industrial power distribution and drive circuits.
- 150 kAIC Interrupt Rating: High interrupting capacity of 150 kAIC supports safe, reliable fault clearing in high-fault-current environments.
- Single Indicator: Built-in single indicator provides fast visual confirmation of fuse condition during inspection.
- IEC 60269-4 Design: Manufactured to IEC 60269-4 standards governing high-speed semiconductor fuse-links.
Certifications & Compliance
- IEC 60269-4 Compliant
- UL Recognized
- CE Compliant
Technical Specifications
- Application: Semiconductor protection.
- Certifications: IEC 60269-4.
- Class: Class aR.
- Compliances: CE.
- Fuse Indicator: Other (single indicator).
- Fuse Shape: Square body, flush end contacts.
- Insulated Metal Gripping Lugs (IMGL): No.
- Interrupt Rating: 150 kAIC.
- Packaging Type: Standard.
- Product Height: 52 mm.
- Product Length Depth: 170 mm.
- Product Weight: 576 g.
- Product Width: 72 mm.
- Utilization Category: aR (accompanied semiconductor protection).
- Voltage Type: AC.
Typical Applications
- Semiconductor Device Protection
- Power Electronics and Drive Systems
- Industrial Rectifier and Converter Circuits
- High-Speed Overcurrent Protection in Solid-State Equipment
Why Bussmann?
Bussmann fuse-links are engineered for precise, code-compliant overcurrent protection in demanding industrial environments. The 170M4955's Class aR rating, 150 kAIC interrupt capacity, and IEC 60269-4 compliance make it a dependable choice for protecting sensitive semiconductor and power electronics equipment. Choose Bussmann for reliable, high-speed fuse protection built to exacting industrial standards.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 350 A
- Application:
- semiconductor protection
- Certifications:
- IEC 60269-4
- Class:
- Class aR
- Compliances:
- CE
- Fuse Indicator:
- Other
- Fuse Shape:
- Square body, flush end contacts
- Insulated Metal Gripping Lugs Imgl:
- No
- Interrupt Rating:
- 150 kAIC
- Packaging Type:
- Standard
- Product Height:
- 52 mm
- Product Length Depth:
- 170 mm
- Product Weight:
- 576 g
- Product Width:
- 72 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 1000 V
- Voltage Type:
- AC
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse