Bussmann FWJ-200A High Speed Fuse

Ultimate Protection for Demanding Electrical Circuits

The Bussmann FWJ-200A High Speed Fuse delivers precision overcurrent protection for sensitive electronics and power systems. Engineered for rapid response, this 200-ampere fuse interrupts fault currents in milliseconds to safeguard semiconductors, rectifiers, and other critical components from catastrophic damage.

Key Features & Benefits:

• ⚡ Ultra-Fast Action: Clears short-circuit faults within 1/10 AC cycle (≤ 1 millisecond) to minimize energy let-through and prevent equipment destruction.
• 🔋 200A Current Rating: Robust protection for high-power applications up to 200 Amperes, 700V AC/DC.
• 🔥 Current-Limiting Design: Contains arc energy during interruption to enhance system safety and reduce collateral damage risks.
• 🧪 Silver-Sand Fuse Element: Precision-calibrated silver element within quartz sand filler ensures consistent performance and arc suppression.
• 🛡️ Durable Construction: Ceramic body with tin-plated, knife-blade terminals resists vibration, thermal stress, and corrosion.
• 🌐 Global Compliance: Meets UL 248-14 / IEC 60269-4 standards for universal acceptance in industrial and renewable energy systems.

Ideal Applications:

• Solar inverters & wind turbine converters
• Motor drives and UPS systems
• Semiconductor protection (IGBTs, thyristors)
• Industrial power supplies and welding equipment
• EV charging infrastructure

Why Choose Bussmann?

As part of Eaton’s Bussmann Series, the FWJ-200A combines decades of fuse innovation with uncompromising reliability. Engineered for mission-critical environments where downtime is unacceptable, it offers:

• Zero maintenance operation
• Stable performance across -50°C to +125°C
• UL-recognized component (File E-217)

Protect your investment with the industry’s fastest defense against electrical faults. The FWJ-200A—where speed meets uncompromising safety.