PF-FB1-225 is a semiconductor class aR power fuse from the Bourns POWrFuse PF-F Series, designed to provide reliable overcurrent protection in high-power applications. This fuse features a rated current of 225 A with an 800 VAC/VDC rated voltage, a clearing I²t of 30000 A²s at 800 V, and a power loss of 43 W. It offers an interrupting rating of 100 kA at 800 VAC and 50 kA at 800 VDC, with an operating temperature range of -55°C to +125°C. The fuse is designed in a traditional round body bolted style package (B1 type bolt mounting) with dimensions including a length of 117.6 ± 3.0 mm and height of 38.2 ± 2.0 mm. It is RoHS compliant and halogen free, making it suitable for semiconductor protection and power electronics applications requiring UL 248-13 compliance.