Bussmann 170E4337 Cartridge Fuse

Bussmann 170E4337 is an IEC high-speed cartridge fuse from Eaton’s Bussmann series, rated 80 A at 500 V. As part of the 170E family, it belongs to a line of square-body, fast-acting fuse links designed for overcurrent protection in power and control circuits. The 170E lineup supports current ratings from 10 A up to 80 A and voltage ratings up to 500 V, making 170E4337 suitable for fast interruption in equipment such as power supplies, motor drives, and distribution panels where reliable, IEC-compliant protection is required. This fuse is used to protect downstream components by opening the circuit quickly when a fault current exceeds its 80 A rating, helping prevent damage from short circuits or overloads. The Bussmann name indicates Eaton’s Bussmann Electrical Division lineage in circuit protection, and 170E-series fuses are referenced in Eaton’s high-speed fuse catalogs as providing rapid clearance for sensitive electronics and power circuits under IEC standards. With 170E4337, you get an 80 A, 500 V cartridge fuse designed to be swapped into compatible Bussmann square-body holders and fuse blocks that specify the 170E family, offering a compact, replaceable protection solution for industrial and commercial electrical systems.