Bussmann 170M1851 Class aR High Speed Square Body Fuse, 200A
The Bussmann 170M1851 is an Eaton Bussmann series high speed square body fuse built for demanding power semiconductor protection duty. Rated 700V (UL) and 690V (IEC) at 200A, this Class aR fuse is designed for accompanied semiconductor protection and includes a top fuse status indicator for quick at-a-glance condition checks. Its square body with offset bolted tags provides a compact, high-density footprint for panel and switchgear installations.
Key Features
- Amperage Rating: 200A for reliable overcurrent protection in high-speed semiconductor circuits.
- Voltage Rating: 700V (UL) and 690V (IEC), with a manufacturer voltage rating of 1000 V, AC/DC, for use across UL and IEC-rated systems.
- Utilization Category: Class aR, providing accompanied semiconductor protection rather than full-range protection.
- Fuse Shape: Square body with offset bolted tags for secure, space-efficient bus bar and panel mounting.
- Top Fuse Status Indicator: Allows technicians to visually confirm fuse condition without de-energizing the circuit.
- Compact Dimensions: 24 mm height, 114 mm length/depth, and 36 mm width for standard high-speed fuse mounting centers.
- Product Weight: 509.333 g per fuse.
Technical Specifications
- Amperage Rating: 200 A
- Compliances: Contact factory
- Fuse Shape: Square body, offset bolted tags
- Insulated Metal Gripping Lugs (IMGL): No
- Packaging Type: Standard
- Product Height: 24 mm
- Product Length Depth: 114 mm
- Product Weight: 509.333 g
- Product Width: 36 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 1000 V
- Voltage Type: AC/DC
Typical Applications
- Power Semiconductor and Rectifier Protection
- Variable Frequency Drive (VFD) Circuits
- Industrial Switchgear and Bus Bar Assemblies
- High-Speed Overcurrent Protection Panels
- Commercial and Industrial Power Distribution Equipment
Why Bussmann?
Bussmann by Eaton engineers the 170M series for demanding high-speed protection applications where accurate Class aR semiconductor coordination matters. The square body design, offset bolted tags, and top status indicator reflect a construction built for dependable installation and fast field verification. Choose the Bussmann 170M1851 for code-conscious, professional-grade power protection.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 200 A
- Class:
- Class aR
- Compliances:
- Contact factory
- Fuse Indicator:
- Top fuse status indicator
- Fuse Shape:
- Square body, offset bolted tags
- Insulated Metal Gripping Lugs Imgl:
- No
- Packaging Type:
- Standard
- Product Height:
- 24 mm
- Product Length Depth:
- 114 mm
- Product Weight:
- 509.333 g
- Product Width:
- 36 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 1000 V
- Voltage Type:
- AC/DC
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse