The PF-JT3-50 is an industrial power fuse designed to UL 248-14 supplemental standard, providing circuit protection for power distribution applications. It features a rated current of 50 A with rated voltages of 500 VAC and 125 VDC, a nominal resistance of 0.0014 O, and a nominal I²t value of 3975 A²s (measured at 10× rated current). The fuse has a clearing time of 4 hours minimum at 100% of rated current and a maximum of 120 seconds at 200% of rated current, with an operating temperature range of -55°C to +125°C. The PF-JT3-50 is RoHS compliant and halogen-free, with PCB mounting (T3 type) and agency recognition (cUS), making it suitable for industrial power protection circuits where reliable overcurrent protection and thermal stability are essential.