Application Scenarios
A heavy-duty DC drive system powering the main roll stand of a steel processing line experienced repeated failures of standard protective devices during commutation faults. The conventional fuses could not clear the fault current fast enough to prevent damage to the thyristor bridge, resulting in costly downtime and component replacement every few months. The maintenance team specified the 170M5013 high-speed fuse for the DC bus protection scheme. With a breaking capacity of 200 kA and an aR utilization category specifically designed for semiconductor protection, the 170M5013 interrupts fault currents before they reach the sensitive power electronics. Following the upgrade, the steel mill reported zero thyristor failures over 18 months of continuous operation, and the 170M5013‘s top fuse status indicator enabled maintenance personnel to identify blown fuses during routine visual inspections without disassembling the drive cabinet.
Parameter
| Main Parameters | Value/Description |
|---|---|
| Product Model | 170M5013 |
| Manufacturer | Eaton (Bussmann series) |
| Product Category | High-Speed Square Body Fuse |
| Amperage Rating | 700 A |
| Voltage Rating | 690 V AC (IEC), 700 V AC (UL) |
| Utilization Category | aR (Accompanied Semiconductor Protection) |
| Breaking Capacity | 200 kA |
| Clearing I²t | 405,000 at 660 V |
| Pre-Arc I²t | 60,500 |
| Watt Losses | 95 W |
| Fuse Size | DIN 2 |
| Center-to-Center Distance | 78 mm |
| Mounting Dimension | M10 |
| Product Dimensions | 286 × 165 × 66 mm |
| Net Weight | 596 g |
| Connection Type | Blade end × blade end |
| Fuse Indicator | Top fuse status indicator |
| Certifications | CE Marked, RoHS Compliant, IEC Rated, UL Recognized |
