The 170M3811 is a high-performance, square-body fuse designed for semiconductor protection in demanding industrial power applications. It ensures fast interruption of fault currents to protect sensitive components like IGBTs and SCRs.
- Current Rating: 80 Amperes
- Voltage Rating: 690V AC (IEC) / 700V AC (UL)
- Utilization Category: aR (for semiconductor protection)
- Interrupting Capacity: 200,000 Amps (RMS Symmetrical)
- Pre-arcing I²t: Approximately 185 A²s
- Total Clearing I²t: Approximately 1250 A²s
- Loss at Rated Current: Around 18 Watts
- Body Type: Square body with DIN blade terminals
- Dimensions: Approx. 71.4 mm (length) × 40 mm (width) × 64 mm (height)
- Indicator: Built-in visual status indicator







