Bussmann FWJ-300A High Speed Fuse

Bussmann FWJ-300A High-Speed Fuse

Precision Protection for Demanding Circuits

The Bussmann FWJ-300A High-Speed Fuse delivers ultra-rapid circuit protection, engineered to safeguard sensitive electronic equipment from damaging overcurrent events. With a 300-amp rating, this fuse ensures reliable performance in high-energy applications where standard fuses cannot react quickly enough.

🔍 Key Features

• Ultra-Fast Response: Clears faults within milliseconds, minimizing damage to semiconductors and critical components.
• High Breaking Capacity: Rated for up to 200kA interrupting capacity, ensuring safety in high-fault scenarios.
• Robust Construction: Precision-designed sand-filled ceramic body withstands extreme electrical stress and thermal shock.
• Stable Performance: Silver-plated brass end caps ensure low resistance and consistent conductivity.
• Optimized Compatibility: Compact 10x38mm dimensions fit industry-standard holders (e.g., DIN 43653).

⚡ Applications

• Power converters, inverters, and UPS systems.
• Semiconductor protection (IGBTs, thyristors).
• Industrial drives, renewable energy installations, and traction equipment.
• Data center power distribution and telecom infrastructure.

✅ Why Choose Bussmann FWJ-300A?

• Zero Maintenance: Non-degrading design for long-term reliability.
• Safety Certified: Compliant with IEC 60269-4, UL 248-14, and global standards.
• Downtime Reduction: Prevents catastrophic failures, reducing repair costs and operational interruptions.

Protect your high-value electronics with the Bussmann FWJ series—where speed, precision, and durability converge. Ideal for engineers prioritizing system resilience in mission-critical environments.

Note: Verify voltage rating (e.g., 500–1000V DC/AC) and local regulations before installation.