IUGN6-1REC4-63F-10.0 is a hydraulic magnetic circuit protector from the Airpax IAG/IUG/IEG/CEG/LEG series designed for low-cost power switching and accurate circuit control in international equipment applications. This unit features a 50/60 Hz motor start delay (63F designation) with an auxiliary switch configuration (-1REC4) and flat screw terminals (F suffix), rated at 10.0 amperes. The protector exhibits a pulse tolerance of approximately 12 times rated current and provides trip time characteristics ranging from 50 to 700 seconds at 125% rated current down to 0.013 to 0.5 seconds at 1000% rated current, ensuring responsive protection across a wide range of fault conditions. The device is UL Recognized as a supplementary protector per UL STD. 1077 and CSA Certified, making it suitable for equipment requiring IEC compliance (601, 950) and VDE specifications (0804, 0805). Common applications include industrial control systems, power distribution equipment, and international appliances where reliable overload and short-circuit protection is essential.