BUSSMANN TYPOWER SILCU 170 L 8505

Bussmann TYPOWER SILCU High-Speed Fuse Description This is a Bussmann 170 L 8505, a high-speed square body fuse designed for the protection of semiconductors. It provides robust and fast-acting protection for power electronics such as diodes, thyristors, GTOs, and IGBTs used in inverters, motor drives, and rectifiers. Its 400A, 1000V rating makes it suitable for demanding industrial applications requiring reliable overcurrent protection. Specifications Manufacturer: Bussmann (now part of Eaton) Part Number: 170 L 8505 Series: TYPOWER SILCU Rated Current: 400 Amperes Rated Voltage: 1000 Volts Fuse Type: High-Speed / Semiconductor Protection Body Style: Square Body Mounting: Flush End Mount (2BK/80) Label Info Bussmann Denmark 400A 1000V TYPOWER SILCU 170 L 8505 2BK/80 Application Ideal for use in frequency converters, UPS systems, power supplies, and other high-power electronic equipment to protect against short-circuit currents. Country of Origin Made in Denmark. CO2 Impact Choosing this surplus component over a new one avoids approximately 32 kg of CO2 emissions, which is equivalent to driving a car for about 160 kilometers. Availability This item is in stock and ready for immediate dispatch. It is new old stock (NOS) in its original, opened box. Order now from profideals for expert support and fast delivery. FAQ What does “fast-acting” or “high-speed” mean for this fuse?A high-speed fuse is designed to open extremely quickly under short-circuit conditions. This is critical for protecting sensitive semiconductor devices, which can be damaged by overcurrents in microseconds, far faster than a standard industrial fuse could react. Can I use this 1000V fuse in a 690V system?Yes. The voltage rating on a fuse indicates the maximum system voltage it can safely interrupt. Using it in a system with a lower voltage (e.g., 690V or 400V) is perfectly safe and common practice. What does the ‘2BK/80′ code signify?This is a Bussmann mounting style code. It specifies a flush end-mount design with a blade terminal, where ’80’ typically refers to the mounting center distance in millimeters, which is 80mm in this case. Last Update: Friday, March 13, 2026 profideals is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners.