Bussmann FWP-30B High Speed Fuse

Precision Protection for Critical Electronics

Overview

The Bussmann FWP-30B High Speed Fuse delivers ultra-rapid circuit protection for sensitive semiconductor devices and power electronics. Designed for 700V AC/250V DC applications, this 30-amp fuse interrupts fault currents within milliseconds to safeguard equipment like rectifiers, inverters, and motor drives from damaging overcurrent surges.

Key Features

• Extreme Speed: Clears faults in ≤1/4 cycle (4 ms) to prevent thermal damage to semiconductors
• High Voltage Rating: 700V AC / 250V DC operational voltage
• Precision Protection: 30A current rating with low I²t let-through energy
• Robust Construction: Ceramic body with quartz sand filler for reliable arc quenching
• High Interrupt Capacity: 200kA IR (interrupting rating) at 700V AC
• Universal Compatibility: UL 248-14 / IEC 60269-4 certified, RoHS compliant

Applications

• Semiconductor Protection: Diodes, SCRs, IGBTs, and thyristors
• Power Conversion: Industrial rectifiers, UPS systems, DC drives
• Renewable Energy: Solar inverters, wind turbine converters
• Transportation: EV charging stations, railway traction systems

Technical Specifications

Why Choose the FWP-30B?

Bussmann’s proprietary fuse technology ensures zero power dissipation during normal operation while providing deterministic protection curves. The hermetically sealed design resists humidity, vibration, and contamination – critical for harsh industrial environments. Backed by Eaton’s global support network, this fuse offers unmatched reliability for mission-critical systems.

Installation Note: Always verify voltage/current requirements and replace with identical specifications. Consult technical datasheet E-HD-FUSE-FWP for derating guidelines.