Bussmann FWP‑100B semiconductor fuse delivers fast-blow 100 A protection at 700 V AC/DC, designed for industrial and power electronics.
Bussmann FWP‑100B Semiconductor Fuse is a high-speed, 100 amp cartridge fuse designed to protect semiconductor devices, DC buses, power converters, and industrial electronics. Rated for 700 V AC and DC, this fast-acting fuse interrupts faults up to 200 kA, minimizing damage to expensive equipment
Fast-acting ‘aR’ fuse designed to protect rectifiers, inverters, and DC-drive circuits
100 A rating at 700 V AC/DC, with 200 kA interrupt capacity
Stud-mounted cylindrical design (22 × 58 mm body, 112 mm long)
UL recognized, CSA certified, CE & RoHS compliant
Low arc voltage and I²t, optimized for fast clearing and minimal component stress
| Specification | Detail | 
|---|---|
| Amp Rating | 100 A | 
| Voltage Rating | 700 V AC / 700 V DC | 
| Interrupt Rating | 200 kA AC / 50 kA DC („bolt‑on” voltages) | 
| Fuse Class | aR (semiconductor protection) | 
| Body Size | 22 × 58 mm; length 112 mm | 
| Mounting | Stud-mounted; M8 bolt | 
| Watt Loss | ~27 W at rated current | 
| Weight | 109 g (~0.24 lb) | 
| Certifications | UL, CSA, CE, RoHS | 
Protection of inverter power modules, rectifiers, plasma generators, and motor drives
Used in industrial power distribution, UPS systems, and renewable installations
Ideal for semiconductor-intensive applications like welding and battery storage
Mount on stud fuse holder with M8 hardware
Apply torque per manufacturer guidelines
Replace with the same FWP‑100B model to maintain proper protection
Inspect periodically under visual maintenance inspections
Rapid fault clearing limits damage to sensitive electronics
High interrupt rating provides robust protection under surge events
Global compliance safeguards industrial and utility installations
Long-lasting Eaton quality backed by Bussmann heritage
| Weight | 0.24 kg | 
|---|---|
| Dimensions | 4.41 × 0.95 × 0.95 cm | 

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