PF-JT3-63 is an industrial power fuse from the Bourns POWrFuse PF-J Series, designed for circuit protection in high-current applications. It features a rated current of 63 A, a nominal resistance of 0.0011 O, and a nominal I²t value of 6271 A²s. The fuse is rated for 500 VAC and 125 VDC with an interrupting rating of up to 2000 A at 500 VAC. It operates over a wide temperature range of -55 °C to +125 °C and is designed to UL 248-14 supplemental standard with cUS agency recognition. This RoHS compliant and halogen free fuse is ideal for industrial power applications requiring reliable overcurrent protection with PCB mounting capability.