Bussmann 170M5283 High Speed Square Body Fuse, 700A Class aR

Bussmann 170M5283 High Speed Square Body Fuse, 700A Class aR

The Bussmann 170M5283 is an Eaton Bussmann series high speed square body fuse built for semiconductor protection in demanding power electronics circuits. Rated 700V (UL) / 690V (IEC) at 700A, this Class aR fuse is an accompanied semiconductor protection device, designed to be coordinated with a properly rated circuit breaker or contactor rather than used as stand-alone branch-circuit protection. The square body construction uses center bolted tags for a compact, high-current connection, and the high speed element is engineered to clear short-circuit currents quickly to help protect sensitive semiconductor components from thermal and mechanical stress.

Key Features

• Amperage Rating: 700A for high-current semiconductor protection circuits.
• Voltage Rating: 700V (UL) / 690V (IEC), suited to AC voltage systems.
• Utilization Category: Class aR (accompanied semiconductor protection), for use alongside coordinated overcurrent devices.
• Fuse Shape: Square body with center bolted tags for a secure, high-current bolted connection.
• Voltage Type: AC rated construction.
• Insulated Metal Gripping Lugs (IMGL): Not equipped.
• Compact Dimensions: 205 mm length/depth x 89 mm width x 78 mm height, weighing approximately 746.4 g.

Technical Specifications

• Amperage Rating: 700 A
• Application: semiconductor protection
• Compliances: Contact factory
• Fuse Shape: Square body, center bolted tags
• Insulated Metal Gripping Lugs (IMGL): No
• Packaging Type: Standard
• Product Height: 78 mm
• Product Length/Depth: 205 mm
• Product Weight: 746.4309952 g
• Product Width: 89 mm
• Utilization Category: aR (accompanied semiconductor protection)
• Voltage Rating: 690 V
• Voltage Type: AC

Typical Applications

• Semiconductor Protection for Power Electronics
• Variable Frequency Drives and Power Converters
• Rectifier and Inverter Circuit Protection
• High-Power Industrial Equipment
• Coordinated Overcurrent Protection Schemes

Why Bussmann?

Bussmann by Eaton engineers high speed fuses to deliver fast, predictable clearing for the accompanied semiconductor protection duty demanded by modern power electronics. The 170M5283's square body, center bolted tag design and Class aR utilization category reflect the coordinated, application-specific engineering that industrial and OEM designers rely on for dependable circuit protection.