IULNK11-1-53-100. is a single-pole hydraulic magnetic circuit protector from the IAL/IUL/IEL/LEL series designed for low-cost power switching and reliable circuit protection in international applications. This sealed toggle device features a DC motor start delay characteristic (type 53) with a rated current of 0.1 amperes at 125 volts, 60Hz, and includes a sealed panel design with an integral "O" ring for harsh environment operation. The unit has a DC resistance of 45.8 ohms and an AC impedance of 28.5 ohms at 50/60Hz, providing stable performance across different operating frequencies. The single-pole configuration measures 0.656 inches in width with panel mounting via 6-32 MTG screws, and weighs approximately 3.1 ounces (90 grams) per pole. This protector is suitable for equipment requiring motor-start protection with delayed trip characteristics, meeting MIL-PRF-55629 requirements for salt spray corrosion and moisture resistance, and is ideal for marine and industrial applications demanding sealed, reliable circuit control.