LELK11-1-52-100.-01-V is a single-pole hydraulic magnetic circuit protector manufactured by Airpax/Sensata, designed to provide reliable circuit protection and power switching for international applications. This device features a DC long delay (52) trip characteristic with a rated current of 100 amperes, offering accurate circuit control with low-cost implementation. The unit incorporates a sealed toggle handle with silicone rubber seal for panel integrity in harsh environments, and is available with standard screw terminals. The protector is VDE and CCC approved, meeting installation Category III pollution degree 3 requirements per IEC 664, making it suitable for equipment designed to comply with IEC 380, 435, 601 and VDE 0730, 0804, and 0805 standards. Common applications include industrial power distribution, equipment protection, and control systems requiring reliable overcurrent and short-circuit protection.