Eaton Bussmann 63FE High Speed Fuse, 63A 690V, aR Offset Bolted Tag, 20x76mm - Pack of 10

The Eaton Bussmann 63FE is a high-speed British Standard fuse designed for the rigorous protection of semiconductor devices. Belonging to the FE series, this single-barrel fuse features offset bolted tags, making it ideal for compact installations in power conversion equipment. Engineered with an aR utilization category, it provides ultra-fast action to safeguard diodes, thyristors, IGBTs, and DC common bus systems. It is fully compliant with BS88 Part 4 and IEC 60269-4 standards, ensuring global reliability and safety.

Key Features

• Superior Semiconductor Protection: The aR class characteristic is optimized for low I²t let-through, providing essential protection for sensitive power electronics.
• Dual Voltage Versatility: Rated for 690V AC (IEC) and 700V AC (UL), as well as 500V DC, making it suitable for a wide range of industrial power applications.
• High Interrupting Capacity: Boasts a 200kA RMS Symmetrical breaking capacity, ensuring the ability to safely interrupt high-magnitude fault currents.
• Standardized Mounting: Features a center-to-center connection distance of 61.8mm with M6 mounting dimensions, following the BS88 offset bolted tag configuration.
• Low Power Loss: Designed with a 12W power loss rating at rated current to minimize heat generation within electrical enclosures.

Technical Specifications

• Manufacturer: Eaton Bussmann
• Series: FE (British Standard High Speed)
• Catalog Number: 63FE
• Current Rating: 63 A
• Voltage Rating: 690V AC / 500V DC (IEC); 700V AC (UL)
• Utilization Category: aR
• Breaking Capacity: 200kA AC / 50kA DC
• Construction Size: 20 x 76 mm
• Connection Type: Offset Bolted Tags (M6)
• Center-to-Center Distance: 61.8 mm
• Pre-arcing (I²t): 135
• Total Clearing (I²t): 750 (at 660V)
• Standards: IEC 60269-4, UL Recognized, CE, RoHS
• Package Quantity: 10 Pieces