Kyosan Electric Manufacturing Co., Ltd. 25FH50 Fuse

Kyosan Electric Manufacturing Co., Ltd. 25FH50 is a ClearUp cylindrical fast-acting fuse designed for semiconductor protection, rated 50 A at 250 V. The unit is part of the 25FH series and features an 18 mm diameter by 56.5 mm length body with a screw-type mount, enabling secure installation in panel or chassis circuits where compact form factor matters. Marketed as a very fast-acting semiconductor fuse, the 25FH50 provides rapid interruption of fault currents to shield sensitive power electronics, drives, and control circuitry from short‑circuit events, while helping to minimize collateral damage in surrounding components. This Kyosan ClearUp fuse is produced under Hinode’s OEM-style program and is commonly used as an industry replacement in equipment that relies on fast protection for semiconductor devices, including power supplies, motor controllers, and inverter modules. With its 250 V rating and 50 A current capacity, the 25FH50 is positioned for medium-power paths in demanding industrial applications where swift disconnection of fault currents is critical to maintaining system reliability and safety.