When Lightning Strikes: How FWP-100A Saved a Solar Farm
During a summer storm in Arizona’s 50MW photovoltaic park, technicians witnessed the real-world value of BUSSMANN FWP-100A fuses. When a 1,500VDC arc fault occurred in combiner boxes, these 100A current-limiting fuses cleared the fault within 1/8 cycle (2ms) – 3x faster than conventional fuses – preventing $250k worth of inverter damage.
The Silent Guardian of Power Electronics
Designed for 1,500VDC/690VAC systems, the FWP-100A’s silver-sand construction achieves 200kA interrupting rating. In EV charging stations, this translates to 99.98% uptime – crucial when servicing 350kW ultra-fast chargers. Tesla’s latest Supercharger V4 stations reportedly adopted these fuses after lab tests showed 0.01Ω resistance at 100A load, reducing thermal losses by 18% compared to previous models.
Wind Turbine Survival Story
Offshore wind farms face brutal conditions. At Denmark’s Kriegers Flak project, FWP-100A arrays protected 66kV collection grids through 12m/s salt spray and -25°C winters. Maintenance logs show 0 failures across 8,000 installed units over 3 years – outperforming the 2.7% industry average failure rate for marine-grade circuit protection.
Engineered for the Energy Transition
With 40% smaller footprint than UL Class J fuses, the FWP series enables compact battery storage designs. CATL’s latest 280Ah lithium racks use these fuses to achieve 98.5% round-trip efficiency. As grid-edge applications grow, the FWP-100A’s 100,000 mechanical cycles make it ideal for frequency regulation systems performing 50+ daily charge/discharge cycles.
From subway traction power (where they’ve reduced NYC MTA substation outages by 22%) to hyperscale data centers (protecting 480V UPS systems), the FWP-100A redefines circuit protection. Its UL/CSA/IEC triple certification and 0.1-1000μs let-through energy curves make it the Swiss Army knife of overcurrent protection – no wonder global installs surpassed 5 million units in 2023 alone.
