The Bussmann FWP-400C fuse is a high-performance electrical protection device designed for demanding industrial environments. With a 400A current rating and 600V AC/DC voltage capacity, this UL/CSA-certified fuse ensures reliable circuit protection in heavy machinery, renewable energy systems, and data center applications. Its unique sand-filled construction enables superior arc suppression, achieving an impressive 200kA interrupting rating – critical for preventing catastrophic failures in high-power systems. In solar farms, the FWP-400C has demonstrated 99.98% reliability across 5-year field studies, protecting inverters from overloads caused by sudden cloud cover transitions. The compact 90mm x 38mm form factor allows space-efficient panel mounting, while its -50°C to +125°C operating range suits offshore wind turbine installations where temperature fluctuations exceed 80°C daily. Maintenance teams report 40% faster replacement times compared to traditional fuses due to its visible fault indicators. Recent market data shows 22% annual growth in FWP-400C adoption within EV charging infrastructure, where it prevents cascading failures during 150kW fast-charging cycles. Unlike generic fuses, the FWP-400C’s silver-plated terminals maintain stable contact resistance below 0.5mΩ even after 10,000 thermal cycles. For industrial operators seeking UL 248-14 compliant protection, this fuse delivers 15% longer service life than industry averages while meeting NEC 240.9 standards.
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