Sinofuse RS309-MF-S100A RS309-MF-S High-Speed Fuse, 700V IEC/750V UL, 100A aR, Size 3SA M8 - Pack of 3

Overview: The Sinofuse RS309-MF-S100A is a cylindrical, bolt‑mounted high‑speed semiconductor fuse (aR) for AC/DC systems up to 700 V (IEC) / 750 V (UL). Rated 100 A, it combines small size, low I²t and high interrupting capacity for reliable short‑circuit protection in power electronics. This item is sold as a pack of 3 units.

Key Features:

• Small volume, low melting I²t, high interrupting capability
• AC/DC 700 V (IEC) and 750 V (UL) ratings; aR utilization category
• High breaking capacity: AC 100 kA; DC 50 kA (time constant ≤15 ms)
• Bolt mounting with M8 hardware (recommended torque 12 ±1 N·m)
• Compliance: UL248, IEC 60269; CE and RoHS

Technical Specifications:

• Rated current: 100 A
• Rated voltage: 700 V (IEC) / 750 V (UL)
• Breaking capacity: AC 100 kA; DC 50 kA (L/R ≤15 ms)
• I²t (A²s): pre‑arcing 1100; clearing 4980
• Power loss at In: 25 W
• Body/size: cylindrical bolt fuse, size code 3SA
• Mounting: M8 bolts; torque 12 ±1 N·m

Applications:

• Inverters, rectifiers, chargers
• DC common bus, DC drives, power conversion
• EV traction/power systems, energy storage systems