IEG666-1-62-20.0-01-V is a three-pole hydraulic magnetic circuit protector designed for reliable circuit protection and power switching in equipment requiring IEC compliance. This model features a 50/60Hz long delay (Type 62) characteristic with a 20.0 ampere current rating, making it suitable for protecting motor loads and transformer/capacitor circuits. The unit is configured with push-on terminals, series internal configuration, and VDE approval (designation -01-V). With a DC resistance of 0.006 ohms at rated current and impedance of 0.006 ohms AC at 50/60Hz, the protector delivers consistent performance across standard industrial frequencies. The three-pole design with a single toggle handle operating all poles provides coordinated protection, and the long delay curve allows motors and certain transformer loads to start without nuisance tripping. This protector is ideal for industrial automation systems, motor control circuits, and equipment requiring IEC 601/950 and VDE 0804/0805 compliance.