Eaton Bussmann 140EET High Speed British Standard Fuse, 140A 690V, Class aR Offset Bolted Tags - Pack of 5

The Eaton Bussmann 140EET is a high-performance British Standard (BS88) high-speed fuse engineered for the rigorous demands of semiconductor protection. Featuring a double-barrel construction and offset bolted tags, this fuse is optimized for low I²t let-through and excellent power dissipation. It is specifically designed to protect power electronic equipment including DC drives, power converters, rectifiers, and DC common bus systems.

Key Features

• High-Speed Response: Designed with a Class aR utilization category, providing rapid clearing of faults to protect sensitive semiconductor devices like thyristors and diodes.
• Exceptional Breaking Capacity: Capable of safely interrupting up to 200 kA RMS Symmetrical at 690 VAC and 50 kA at 500 VDC, ensuring high-level circuit safety.
• Efficient Operation: Engineered for low energy let-through with a pre-arc I²t of 1050 and a total clearing I²t of 12000 at 660V. It maintains a low power loss of approximately 35W.
• Robust Construction: The double-barrel design with offset bolted tags ensures a secure mechanical fit and superior thermal performance under heavy-duty industrial cycles.
• Industry Certification: Fully compliant with IEC 60269-4 and BS88 part 4 standards. The product is UL Recognized, CE marked, and RoHS compliant for global distribution and use.

Technical Specifications

• Manufacturer: Eaton Bussmann
• Catalog Number: 140EET
• Amperage Rating: 140A
• Voltage Ratings: 690 VAC / 500 VDC (IEC); 700 VAC / 500 VDC (UL)
• Utilization Category: aR (High Speed / Semiconductor Protection)
• Breaking Capacity: 200 kA (AC) / 50 kA (DC)
• Connection Type: Offset Bolted Tags
• Mounting Method: Stud Mount
• Dimensions: 94 mm (Length) x 36 mm (Height) x 20 mm (Width)
• Compatability: Suitable for use with TI700/EC-600 indicators and MAI/MBI microswitches
• Package Quantity: 5 Pieces